Refine stock import UX with suggestions, ignore rules, and inline mapping controls

.gitignore

@@ -16,6 +16,25 @@ config.yaml
 # Local Go build cache used in sandboxed runs
 .gocache/
 
+# Local tooling state
+.claude/
+
+# Editor settings
+.idea/
+.vscode/
+*.swp
+*.swo
+
+# Temp and logs
+*.tmp
+*.temp
+*.log
+
+# Go test/build artifacts
+*.out
+*.test
+coverage/
+
 # ---> macOS
 # General
 .DS_Store

README.md

@@ -85,6 +85,82 @@ auth:
 go run ./cmd/qfs -migrate
 ```
 
+### Мигратор OPS -> проекты (preview/apply)
+
+Переносит квоты, чьи названия начинаются с `OPS-xxxx` (где `x` — цифра), в проект `OPS-xxxx`.
+Если проекта нет, он будет создан; если архивный — реактивирован.
+
+Сначала всегда смотрите preview:
+
+```bash
+go run ./cmd/migrate_ops_projects -config config.yaml
+```
+
+Применение изменений:
+
+```bash
+go run ./cmd/migrate_ops_projects -config config.yaml -apply
+```
+
+Без интерактивного подтверждения:
+
+```bash
+go run ./cmd/migrate_ops_projects -config config.yaml -apply -yes
+```
+
+### Минимальные права БД для пользователя квотаций
+
+Если нужен пользователь, который может работать с конфигурациями, но не может создавать/удалять прайслисты:
+
+```sql
+-- 1) Создать пользователя (если его ещё нет)
+CREATE USER IF NOT EXISTS 'quote_user'@'%' IDENTIFIED BY 'StrongPassword!';
+
+-- 2) Если пользователь уже существовал, принудительно обновить пароль
+ALTER USER 'quote_user'@'%' IDENTIFIED BY 'StrongPassword!';
+
+-- 3) (Опционально, но рекомендуется) удалить дубли пользователя с другими host,
+-- чтобы не возникало конфликтов вида user@localhost vs user@'%'
+DROP USER IF EXISTS 'quote_user'@'localhost';
+DROP USER IF EXISTS 'quote_user'@'127.0.0.1';
+DROP USER IF EXISTS 'quote_user'@'::1';
+
+-- 4) Сбросить лишние права
+REVOKE ALL PRIVILEGES, GRANT OPTION FROM 'quote_user'@'%';
+
+-- 5) Чтение данных для конфигуратора и синка
+GRANT SELECT ON RFQ_LOG.lot TO 'quote_user'@'%';
+GRANT SELECT ON RFQ_LOG.qt_lot_metadata TO 'quote_user'@'%';
+GRANT SELECT ON RFQ_LOG.qt_categories TO 'quote_user'@'%';
+GRANT SELECT ON RFQ_LOG.qt_pricelists TO 'quote_user'@'%';
+GRANT SELECT ON RFQ_LOG.qt_pricelist_items TO 'quote_user'@'%';
+
+-- 6) Работа с конфигурациями
+GRANT SELECT, INSERT, UPDATE ON RFQ_LOG.qt_configurations TO 'quote_user'@'%';
+
+FLUSH PRIVILEGES;
+
+SHOW GRANTS FOR 'quote_user'@'%';
+SHOW CREATE USER 'quote_user'@'%';
+```
+
+Полный набор прав для пользователя квотаций:
+
+```sql
+GRANT USAGE ON *.* TO 'quote_user'@'%' IDENTIFIED BY 'StrongPassword!';
+GRANT SELECT ON RFQ_LOG.lot TO 'quote_user'@'%';
+GRANT SELECT ON RFQ_LOG.qt_lot_metadata TO 'quote_user'@'%';
+GRANT SELECT ON RFQ_LOG.qt_categories TO 'quote_user'@'%';
+GRANT SELECT ON RFQ_LOG.qt_pricelists TO 'quote_user'@'%';
+GRANT SELECT ON RFQ_LOG.qt_pricelist_items TO 'quote_user'@'%';
+GRANT SELECT, INSERT, UPDATE ON RFQ_LOG.qt_configurations TO 'quote_user'@'%';
+```
+
+Важно:
+- не выдавайте `INSERT/UPDATE/DELETE` на `qt_pricelists` и `qt_pricelist_items`, если пользователь не должен управлять прайслистами;
+- если видите ошибку `Access denied for user ...@'<ip>'`, проверьте, что не осталось других записей `quote_user@host` кроме `quote_user@'%'`;
+- после смены DB-настроек через `/setup` приложение перезапускается автоматически и подхватывает нового пользователя.
+
 ### 4. Импорт метаданных компонентов
 
 ```bash
@@ -131,6 +207,36 @@ make help            # Показать все команды
 
 Можно переопределить путь через `-localdb` или переменную окружения `QFS_DB_PATH`.
 
+### Версионность конфигураций (local-first)
+
+Для `local_configurations` используется append-only versioning через полные snapshot-версии:
+
+- таблица: `local_configuration_versions`
+- для каждого изменения создаётся новая версия (`version_no = max + 1`)
+- `local_configurations.current_version_id` указывает на активную версию
+- старые версии не изменяются и не удаляются в обычном потоке
+- rollback не "перематывает" историю, а создаёт новую версию из выбранного snapshot
+
+При backfill (миграция `006_add_local_configuration_versions.sql`) для существующих конфигураций создаётся `v1` и проставляется `current_version_id`.
+
+#### Rollback
+
+Rollback выполняется API-методом:
+
+```bash
+POST /api/configs/:uuid/rollback
+{
+  "target_version": 3,
+  "note": "optional"
+}
+```
+
+Результат:
+- создаётся новая версия `vN` с `data` из целевой версии
+- `change_note = "rollback to v{target_version}"` (+ note, если передан)
+- `current_version_id` переключается на новую версию
+- конфигурация уходит в `sync_status = pending`
+
 ### Локальный config.yaml
 
 По умолчанию `qfs` ищет `config.yaml` в той же user-state папке, где лежит `qfs.db` (а не рядом с бинарником).
@@ -191,8 +297,23 @@ GET  /api/components          # Список компонентов
 POST /api/quote/calculate     # Расчёт цены
 POST /api/export/xlsx         # Экспорт в Excel
 GET  /api/configs             # Сохранённые конфигурации
+GET  /api/configs/:uuid/versions            # Список версий конфигурации
+GET  /api/configs/:uuid/versions/:version   # Получить конкретную версию
+POST /api/configs/:uuid/rollback            # Rollback на указанную версию
+POST /api/configs/:uuid/reactivate          # Вернуть архивную конфигурацию в активные
 ```
 
+#### Sync payload для versioning
+
+События в `pending_changes` для конфигураций содержат:
+- `configuration_uuid`
+- `operation` (`create` / `update` / `rollback`)
+- `current_version_id` и `current_version_no`
+- `snapshot` (текущее состояние конфигурации)
+- `idempotency_key` и `conflict_policy` (`last_write_wins`)
+
+Это позволяет push-слою отправлять на сервер актуальное состояние и готовит основу для будущего conflict resolution.
+
 ## Cron Jobs
 
 QuoteForge now includes automated cron jobs for maintenance tasks. These can be run using the built-in cron functionality in the Docker container.

cmd/cron/main.go

@@ -81,4 +81,4 @@ func main() {
 		log.Println("  - reset-counters: Reset usage counters")
 		log.Println("  - update-popularity: Update popularity scores")
 	}
-}
+}

cmd/migrate/main.go

@@ -66,7 +66,7 @@ func main() {
 
 	// Get all configurations from MariaDB
 	var configs []models.Configuration
-	if err := mariaDB.Preload("User").Find(&configs).Error; err != nil {
+	if err := mariaDB.Find(&configs).Error; err != nil {
 		log.Fatalf("Failed to fetch configurations: %v", err)
 	}
 
@@ -78,9 +78,6 @@ func main() {
 		log.Println("\n[DRY RUN] Would migrate the following configurations:")
 		for _, c := range configs {
 			userName := c.OwnerUsername
-			if userName == "" && c.User != nil {
-				userName = c.User.Username
-			}
 			if userName == "" {
 				userName = "unknown"
 			}
@@ -120,6 +117,7 @@ func main() {
 		localConfig := &localdb.LocalConfiguration{
 			UUID:             c.UUID,
 			ServerID:         &c.ID,
+			ProjectUUID:      c.ProjectUUID,
 			Name:             c.Name,
 			Items:            localItems,
 			TotalPrice:       c.TotalPrice,
@@ -131,14 +129,10 @@ func main() {
 			UpdatedAt:        now,
 			SyncedAt:         &now,
 			SyncStatus:       "synced",
-			OriginalUserID:   c.UserID,
+			OriginalUserID:   derefUint(c.UserID),
 			OriginalUsername: c.OwnerUsername,
 		}
 
-		if localConfig.OriginalUsername == "" && c.User != nil {
-			localConfig.OriginalUsername = c.User.Username
-		}
-
 		if err := local.SaveConfiguration(localConfig); err != nil {
 			log.Printf("  ERROR: %s - %v", c.Name, err)
 			errors++
@@ -173,3 +167,10 @@ func main() {
 
 	fmt.Println("\nDone! You can now run the server with: go run ./cmd/server")
 }
+
+func derefUint(v *uint) uint {
+	if v == nil {
+		return 0
+	}
+	return *v
+}

cmd/migrate_ops_projects/main.go

@@ -0,0 +1,283 @@
+package main
+
+import (
+	"bufio"
+	"flag"
+	"fmt"
+	"log"
+	"os"
+	"regexp"
+	"sort"
+	"strings"
+
+	"git.mchus.pro/mchus/quoteforge/internal/config"
+	"git.mchus.pro/mchus/quoteforge/internal/models"
+	"github.com/google/uuid"
+	"gorm.io/driver/mysql"
+	"gorm.io/gorm"
+	"gorm.io/gorm/logger"
+)
+
+type configRow struct {
+	ID            uint
+	UUID          string
+	OwnerUsername string
+	Name          string
+	ProjectUUID   *string
+}
+
+type migrationAction struct {
+	ConfigID          uint
+	ConfigUUID        string
+	ConfigName        string
+	OwnerUsername     string
+	TargetProjectName string
+	CurrentProject    string
+	NeedCreateProject bool
+	NeedReactivate    bool
+}
+
+func main() {
+	configPath := flag.String("config", "config.yaml", "path to config file")
+	apply := flag.Bool("apply", false, "apply migration (default is preview only)")
+	yes := flag.Bool("yes", false, "skip interactive confirmation (works only with -apply)")
+	flag.Parse()
+
+	cfg, err := config.Load(*configPath)
+	if err != nil {
+		log.Fatalf("failed to load config: %v", err)
+	}
+
+	db, err := gorm.Open(mysql.Open(cfg.Database.DSN()), &gorm.Config{
+		Logger: logger.Default.LogMode(logger.Silent),
+	})
+	if err != nil {
+		log.Fatalf("failed to connect database: %v", err)
+	}
+
+	if err := ensureProjectsTable(db); err != nil {
+		log.Fatalf("precheck failed: %v", err)
+	}
+
+	actions, existingProjects, err := buildPlan(db, cfg.Database.User)
+	if err != nil {
+		log.Fatalf("failed to build migration plan: %v", err)
+	}
+
+	printPlan(actions)
+	if len(actions) == 0 {
+		fmt.Println("Nothing to migrate.")
+		return
+	}
+
+	if !*apply {
+		fmt.Println("\nPreview complete. Re-run with -apply to execute.")
+		return
+	}
+
+	if !*yes {
+		ok, confirmErr := askForConfirmation()
+		if confirmErr != nil {
+			log.Fatalf("confirmation failed: %v", confirmErr)
+		}
+		if !ok {
+			fmt.Println("Aborted.")
+			return
+		}
+	}
+
+	if err := executePlan(db, actions, existingProjects); err != nil {
+		log.Fatalf("migration failed: %v", err)
+	}
+
+	fmt.Println("Migration completed successfully.")
+}
+
+func ensureProjectsTable(db *gorm.DB) error {
+	var count int64
+	if err := db.Raw("SELECT COUNT(*) FROM information_schema.tables WHERE table_schema = DATABASE() AND table_name = 'qt_projects'").Scan(&count).Error; err != nil {
+		return fmt.Errorf("checking qt_projects table: %w", err)
+	}
+	if count == 0 {
+		return fmt.Errorf("table qt_projects does not exist; run migration 009_add_projects.sql first")
+	}
+	return nil
+}
+
+func buildPlan(db *gorm.DB, fallbackOwner string) ([]migrationAction, map[string]*models.Project, error) {
+	var configs []configRow
+	if err := db.Table("qt_configurations").
+		Select("id, uuid, owner_username, name, project_uuid").
+		Find(&configs).Error; err != nil {
+		return nil, nil, fmt.Errorf("load configurations: %w", err)
+	}
+
+	codeRegex := regexp.MustCompile(`^(OPS-[0-9]{4})`)
+	owners := make(map[string]struct{})
+	projectNames := make(map[string]struct{})
+	type candidate struct {
+		config configRow
+		code   string
+		owner  string
+	}
+	candidates := make([]candidate, 0)
+
+	for _, cfg := range configs {
+		match := codeRegex.FindStringSubmatch(strings.TrimSpace(cfg.Name))
+		if len(match) < 2 {
+			continue
+		}
+		owner := strings.TrimSpace(cfg.OwnerUsername)
+		if owner == "" {
+			owner = strings.TrimSpace(fallbackOwner)
+		}
+		if owner == "" {
+			continue
+		}
+		code := match[1]
+		owners[owner] = struct{}{}
+		projectNames[code] = struct{}{}
+		candidates = append(candidates, candidate{config: cfg, code: code, owner: owner})
+	}
+
+	ownerList := setKeys(owners)
+	nameList := setKeys(projectNames)
+	existingProjects := make(map[string]*models.Project)
+	if len(ownerList) > 0 && len(nameList) > 0 {
+		var projects []models.Project
+		if err := db.Where("owner_username IN ? AND name IN ?", ownerList, nameList).Find(&projects).Error; err != nil {
+			return nil, nil, fmt.Errorf("load existing projects: %w", err)
+		}
+		for i := range projects {
+			p := projects[i]
+			existingProjects[projectKey(p.OwnerUsername, p.Name)] = &p
+		}
+	}
+
+	actions := make([]migrationAction, 0)
+	for _, c := range candidates {
+		key := projectKey(c.owner, c.code)
+		existing := existingProjects[key]
+
+		currentProject := ""
+		if c.config.ProjectUUID != nil {
+			currentProject = *c.config.ProjectUUID
+		}
+
+		if existing != nil && currentProject == existing.UUID {
+			continue
+		}
+
+		action := migrationAction{
+			ConfigID:          c.config.ID,
+			ConfigUUID:        c.config.UUID,
+			ConfigName:        c.config.Name,
+			OwnerUsername:     c.owner,
+			TargetProjectName: c.code,
+			CurrentProject:    currentProject,
+		}
+		if existing == nil {
+			action.NeedCreateProject = true
+		} else if !existing.IsActive {
+			action.NeedReactivate = true
+		}
+		actions = append(actions, action)
+	}
+
+	return actions, existingProjects, nil
+}
+
+func printPlan(actions []migrationAction) {
+	createCount := 0
+	reactivateCount := 0
+	for _, a := range actions {
+		if a.NeedCreateProject {
+			createCount++
+		}
+		if a.NeedReactivate {
+			reactivateCount++
+		}
+	}
+
+	fmt.Printf("Planned actions: %d\n", len(actions))
+	fmt.Printf("Projects to create: %d\n", createCount)
+	fmt.Printf("Projects to reactivate: %d\n", reactivateCount)
+	fmt.Println("\nDetails:")
+
+	for _, a := range actions {
+		extra := ""
+		if a.NeedCreateProject {
+			extra = " [create project]"
+		} else if a.NeedReactivate {
+			extra = " [reactivate project]"
+		}
+		current := a.CurrentProject
+		if current == "" {
+			current = "NULL"
+		}
+		fmt.Printf("- %s | owner=%s | \"%s\" | project: %s -> %s%s\n",
+			a.ConfigUUID, a.OwnerUsername, a.ConfigName, current, a.TargetProjectName, extra)
+	}
+}
+
+func askForConfirmation() (bool, error) {
+	fmt.Print("\nApply these changes? type 'yes' to continue: ")
+	reader := bufio.NewReader(os.Stdin)
+	line, err := reader.ReadString('\n')
+	if err != nil {
+		return false, err
+	}
+	return strings.EqualFold(strings.TrimSpace(line), "yes"), nil
+}
+
+func executePlan(db *gorm.DB, actions []migrationAction, existingProjects map[string]*models.Project) error {
+	return db.Transaction(func(tx *gorm.DB) error {
+		projectCache := make(map[string]*models.Project, len(existingProjects))
+		for k, v := range existingProjects {
+			cp := *v
+			projectCache[k] = &cp
+		}
+
+		for _, action := range actions {
+			key := projectKey(action.OwnerUsername, action.TargetProjectName)
+			project := projectCache[key]
+			if project == nil {
+				project = &models.Project{
+					UUID:          uuid.NewString(),
+					OwnerUsername: action.OwnerUsername,
+					Name:          action.TargetProjectName,
+					IsActive:      true,
+					IsSystem:      false,
+				}
+				if err := tx.Create(project).Error; err != nil {
+					return fmt.Errorf("create project %s for owner %s: %w", action.TargetProjectName, action.OwnerUsername, err)
+				}
+				projectCache[key] = project
+			} else if !project.IsActive {
+				if err := tx.Model(&models.Project{}).Where("uuid = ?", project.UUID).Update("is_active", true).Error; err != nil {
+					return fmt.Errorf("reactivate project %s (%s): %w", project.Name, project.UUID, err)
+				}
+				project.IsActive = true
+			}
+
+			if err := tx.Table("qt_configurations").Where("id = ?", action.ConfigID).Update("project_uuid", project.UUID).Error; err != nil {
+				return fmt.Errorf("move configuration %s to project %s: %w", action.ConfigUUID, project.UUID, err)
+			}
+		}
+
+		return nil
+	})
+}
+
+func setKeys(set map[string]struct{}) []string {
+	keys := make([]string, 0, len(set))
+	for k := range set {
+		keys = append(keys, k)
+	}
+	sort.Strings(keys)
+	return keys
+}
+
+func projectKey(owner, name string) string {
+	return owner + "||" + name
+}

cmd/qfs/main.go

@@ -7,17 +7,21 @@ import (
 	"fmt"
 	"io/fs"
 	"log/slog"
+	"math"
 	"net/http"
 	"os"
 	"os/exec"
 	"os/signal"
 	"path/filepath"
 	"runtime"
+	"sort"
 	"strconv"
+	"strings"
 	"syscall"
 	"time"
 
 	qfassets "git.mchus.pro/mchus/quoteforge"
+	"git.mchus.pro/mchus/quoteforge/internal/appmeta"
 	"git.mchus.pro/mchus/quoteforge/internal/appstate"
 	"git.mchus.pro/mchus/quoteforge/internal/config"
 	"git.mchus.pro/mchus/quoteforge/internal/db"
@@ -40,6 +44,8 @@ import (
 // Version is set via ldflags during build
 var Version = "dev"
 
+const backgroundSyncInterval = 5 * time.Minute
+
 func main() {
 	configPath := flag.String("config", "", "path to config file (default: user state dir or QFS_CONFIG_PATH)")
 	localDBPath := flag.String("localdb", "", "path to local SQLite database (default: user state dir or QFS_DB_PATH)")
@@ -55,6 +61,7 @@ func main() {
 
 	exePath, _ := os.Executable()
 	slog.Info("starting qfs", "version", Version, "executable", exePath)
+	appmeta.SetVersion(Version)
 
 	resolvedConfigPath, err := appstate.ResolveConfigPath(*configPath)
 	if err != nil {
@@ -162,8 +169,39 @@ func main() {
 		slog.Info("migrations completed")
 	}
 
+	// Always apply SQL migrations on startup when database is available.
+	// This keeps schema in sync for long-running installations without manual steps.
+	// If current DB user does not have enough privileges, continue startup in normal mode.
+	if mariaDB != nil {
+		sqlMigrationsPath := filepath.Join("migrations")
+		needsMigrations, err := models.NeedsSQLMigrations(mariaDB, sqlMigrationsPath)
+		if err != nil {
+			if models.IsMigrationPermissionError(err) {
+				slog.Info("startup SQL migrations skipped: insufficient database privileges", "path", sqlMigrationsPath, "error", err)
+			} else {
+				slog.Error("startup SQL migrations check failed", "path", sqlMigrationsPath, "error", err)
+				os.Exit(1)
+			}
+		} else if needsMigrations {
+			if err := models.RunSQLMigrations(mariaDB, sqlMigrationsPath); err != nil {
+				if models.IsMigrationPermissionError(err) {
+					slog.Info("startup SQL migrations skipped: insufficient database privileges", "path", sqlMigrationsPath, "error", err)
+				} else {
+					slog.Error("startup SQL migrations failed", "path", sqlMigrationsPath, "error", err)
+					os.Exit(1)
+				}
+			} else {
+				slog.Info("startup SQL migrations applied", "path", sqlMigrationsPath)
+			}
+		} else {
+			slog.Debug("startup SQL migrations not needed", "path", sqlMigrationsPath)
+		}
+	}
+
 	gin.SetMode(cfg.Server.Mode)
-	router, syncService, err := setupRouter(cfg, local, connMgr, mariaDB, dbUser)
+	restartSig := make(chan struct{}, 1)
+
+	router, syncService, err := setupRouter(cfg, local, connMgr, mariaDB, dbUser, restartSig)
 	if err != nil {
 		slog.Error("failed to setup router", "error", err)
 		os.Exit(1)
@@ -173,7 +211,7 @@ func main() {
 	workerCtx, workerCancel := context.WithCancel(context.Background())
 	defer workerCancel()
 
-	syncWorker := sync.NewWorker(syncService, connMgr, 5*time.Minute)
+	syncWorker := sync.NewWorker(syncService, connMgr, backgroundSyncInterval)
 	go syncWorker.Start(workerCtx)
 
 	srv := &http.Server{
@@ -205,9 +243,15 @@ func main() {
 
 	quit := make(chan os.Signal, 1)
 	signal.Notify(quit, syscall.SIGINT, syscall.SIGTERM)
-	<-quit
 
-	slog.Info("shutting down server...")
+	shouldRestart := false
+	select {
+	case <-quit:
+		slog.Info("shutting down server...")
+	case <-restartSig:
+		shouldRestart = true
+		slog.Info("restarting application after connection settings update...")
+	}
 
 	// Stop background sync worker first
 	syncWorker.Stop()
@@ -222,6 +266,10 @@ func main() {
 	}
 
 	slog.Info("server stopped")
+
+	if shouldRestart {
+		restartProcess()
+	}
 }
 
 func setConfigDefaults(cfg *config.Config) {
@@ -392,7 +440,7 @@ func setupDatabaseFromDSN(dsn string) (*gorm.DB, error) {
 	return db, nil
 }
 
-func setupRouter(cfg *config.Config, local *localdb.LocalDB, connMgr *db.ConnectionManager, mariaDB *gorm.DB, dbUsername string) (*gin.Engine, *sync.Service, error) {
+func setupRouter(cfg *config.Config, local *localdb.LocalDB, connMgr *db.ConnectionManager, mariaDB *gorm.DB, dbUsername string, restartSig chan struct{}) (*gin.Engine, *sync.Service, error) {
 	// mariaDB may be nil if we're in offline mode
 
 	// Repositories
@@ -423,7 +471,9 @@ func setupRouter(cfg *config.Config, local *localdb.LocalDB, connMgr *db.Connect
 	var exportService *services.ExportService
 	var alertService *alerts.Service
 	var pricelistService *pricelist.Service
+	var stockImportService *services.StockImportService
 	var syncService *sync.Service
+	var projectService *services.ProjectService
 
 	// Sync service always uses ConnectionManager (works offline and online)
 	syncService = sync.NewService(connMgr, local)
@@ -431,18 +481,20 @@ func setupRouter(cfg *config.Config, local *localdb.LocalDB, connMgr *db.Connect
 	if mariaDB != nil {
 		pricingService = pricing.NewService(componentRepo, priceRepo, cfg.Pricing)
 		componentService = services.NewComponentService(componentRepo, categoryRepo, statsRepo)
-		quoteService = services.NewQuoteService(componentRepo, statsRepo, pricingService)
+		quoteService = services.NewQuoteService(componentRepo, statsRepo, pricelistRepo, local, pricingService)
 		exportService = services.NewExportService(cfg.Export, categoryRepo)
 		alertService = alerts.NewService(alertRepo, componentRepo, priceRepo, statsRepo, cfg.Alerts, cfg.Pricing)
-		pricelistService = pricelist.NewService(mariaDB, pricelistRepo, componentRepo)
+		pricelistService = pricelist.NewService(mariaDB, pricelistRepo, componentRepo, pricingService)
+		stockImportService = services.NewStockImportService(mariaDB, pricelistService)
 	} else {
 		// In offline mode, we still need to create services that don't require DB
 		pricingService = pricing.NewService(nil, nil, cfg.Pricing)
 		componentService = services.NewComponentService(nil, nil, nil)
-		quoteService = services.NewQuoteService(nil, nil, pricingService)
+		quoteService = services.NewQuoteService(nil, nil, nil, local, pricingService)
 		exportService = services.NewExportService(cfg.Export, nil)
 		alertService = alerts.NewService(nil, nil, nil, nil, cfg.Alerts, cfg.Pricing)
-		pricelistService = pricelist.NewService(nil, nil, nil)
+		pricelistService = pricelist.NewService(nil, nil, nil, nil)
+		stockImportService = nil
 	}
 
 	// isOnline function for local-first architecture
@@ -451,8 +503,45 @@ func setupRouter(cfg *config.Config, local *localdb.LocalDB, connMgr *db.Connect
 	}
 
 	// Local-first configuration service (replaces old ConfigurationService)
+	projectService = services.NewProjectService(local)
 	configService := services.NewLocalConfigurationService(local, syncService, quoteService, isOnline)
 
+	// Data hygiene: remove empty nameless projects and ensure every configuration is attached to a project.
+	if removed, err := local.ConsolidateSystemProjects(); err == nil && removed > 0 {
+		slog.Info("consolidated duplicate local system projects", "removed", removed)
+	}
+	if removed, err := local.PurgeEmptyNamelessProjects(); err == nil && removed > 0 {
+		slog.Info("purged empty nameless local projects", "removed", removed)
+	}
+	if err := local.BackfillConfigurationProjects(dbUsername); err != nil {
+		slog.Warn("failed to backfill local configuration projects", "error", err)
+	}
+	if mariaDB != nil {
+		serverProjectRepo := repository.NewProjectRepository(mariaDB)
+		if removed, err := serverProjectRepo.PurgeEmptyNamelessProjects(); err == nil && removed > 0 {
+			slog.Info("purged empty nameless server projects", "removed", removed)
+		}
+		if err := serverProjectRepo.EnsureSystemProjectsAndBackfillConfigurations(); err != nil {
+			slog.Warn("failed to backfill server configuration projects", "error", err)
+		}
+	}
+
+	syncProjectsFromServer := func() {
+		if !connMgr.IsOnline() {
+			return
+		}
+		if _, err := syncService.ImportProjectsToLocal(); err != nil && !errors.Is(err, sync.ErrOffline) {
+			slog.Warn("failed to sync projects from server", "error", err)
+		}
+	}
+
+	syncConfigurationsFromServer := func() {
+		if !connMgr.IsOnline() {
+			return
+		}
+		_, _ = configService.ImportFromServer()
+	}
+
 	// Use filepath.Join for cross-platform path compatibility
 	templatesPath := filepath.Join("web", "templates")
 
@@ -460,15 +549,24 @@ func setupRouter(cfg *config.Config, local *localdb.LocalDB, connMgr *db.Connect
 	componentHandler := handlers.NewComponentHandler(componentService, local)
 	quoteHandler := handlers.NewQuoteHandler(quoteService)
 	exportHandler := handlers.NewExportHandler(exportService, configService, componentService)
-	pricingHandler := handlers.NewPricingHandler(mariaDB, pricingService, alertService, componentRepo, priceRepo, statsRepo)
+	pricingHandler := handlers.NewPricingHandler(
+		mariaDB,
+		pricingService,
+		alertService,
+		componentRepo,
+		priceRepo,
+		statsRepo,
+		stockImportService,
+		local.GetDBUser(),
+	)
 	pricelistHandler := handlers.NewPricelistHandler(pricelistService, local)
-	syncHandler, err := handlers.NewSyncHandler(local, syncService, connMgr, templatesPath)
+	syncHandler, err := handlers.NewSyncHandler(local, syncService, connMgr, templatesPath, backgroundSyncInterval)
 	if err != nil {
 		return nil, nil, fmt.Errorf("creating sync handler: %w", err)
 	}
 
-	// Setup handler (for reconfiguration) - no restart signal in normal mode
-	setupHandler, err := handlers.NewSetupHandler(local, connMgr, templatesPath, nil)
+	// Setup handler (for reconfiguration)
+	setupHandler, err := handlers.NewSetupHandler(local, connMgr, templatesPath, restartSig)
 	if err != nil {
 		return nil, nil, fmt.Errorf("creating setup handler: %w", err)
 	}
@@ -567,6 +665,8 @@ func setupRouter(cfg *config.Config, local *localdb.LocalDB, connMgr *db.Connect
 	router.GET("/", webHandler.Index)
 	router.GET("/configs", webHandler.Configs)
 	router.GET("/configurator", webHandler.Configurator)
+	router.GET("/projects", webHandler.Projects)
+	router.GET("/projects/:uuid", webHandler.ProjectDetail)
 	router.GET("/pricelists", func(c *gin.Context) {
 		// Redirect to admin/pricing with pricelists tab
 		c.Redirect(http.StatusFound, "/admin/pricing?tab=pricelists")
@@ -603,6 +703,7 @@ func setupRouter(cfg *config.Config, local *localdb.LocalDB, connMgr *db.Connect
 		{
 			quote.POST("/validate", quoteHandler.Validate)
 			quote.POST("/calculate", quoteHandler.Calculate)
+			quote.POST("/price-levels", quoteHandler.PriceLevels)
 		}
 
 		// Export (public)
@@ -620,6 +721,8 @@ func setupRouter(cfg *config.Config, local *localdb.LocalDB, connMgr *db.Connect
 			pricelists.GET("/:id", pricelistHandler.Get)
 			pricelists.GET("/:id/items", pricelistHandler.GetItems)
 			pricelists.POST("", pricelistHandler.Create)
+			pricelists.POST("/create-with-progress", pricelistHandler.CreateWithProgress)
+			pricelists.PATCH("/:id/active", pricelistHandler.SetActive)
 			pricelists.DELETE("/:id", pricelistHandler.Delete)
 		}
 
@@ -627,10 +730,18 @@ func setupRouter(cfg *config.Config, local *localdb.LocalDB, connMgr *db.Connect
 		configs := api.Group("/configs")
 		{
 			configs.GET("", func(c *gin.Context) {
+				syncConfigurationsFromServer()
+
 				page, _ := strconv.Atoi(c.DefaultQuery("page", "1"))
 				perPage, _ := strconv.Atoi(c.DefaultQuery("per_page", "20"))
+				status := c.DefaultQuery("status", "active")
+				search := c.Query("search")
+				if status != "active" && status != "archived" && status != "all" {
+					c.JSON(http.StatusBadRequest, gin.H{"error": "invalid status"})
+					return
+				}
 
-				cfgs, total, err := configService.ListAll(page, perPage)
+				cfgs, total, err := configService.ListAllWithStatus(page, perPage, status, search)
 				if err != nil {
 					c.JSON(http.StatusInternalServerError, gin.H{"error": err.Error()})
 					return
@@ -641,6 +752,8 @@ func setupRouter(cfg *config.Config, local *localdb.LocalDB, connMgr *db.Connect
 					"total":          total,
 					"page":           page,
 					"per_page":       perPage,
+					"status":         status,
+					"search":         search,
 				})
 			})
 
@@ -706,7 +819,20 @@ func setupRouter(cfg *config.Config, local *localdb.LocalDB, connMgr *db.Connect
 					c.JSON(http.StatusInternalServerError, gin.H{"error": err.Error()})
 					return
 				}
-				c.JSON(http.StatusOK, gin.H{"message": "deleted"})
+				c.JSON(http.StatusOK, gin.H{"message": "archived"})
+			})
+
+			configs.POST("/:uuid/reactivate", func(c *gin.Context) {
+				uuid := c.Param("uuid")
+				config, err := configService.ReactivateNoAuth(uuid)
+				if err != nil {
+					c.JSON(http.StatusInternalServerError, gin.H{"error": err.Error()})
+					return
+				}
+				c.JSON(http.StatusOK, gin.H{
+					"message": "reactivated",
+					"config":  config,
+				})
 			})
 
 			configs.PATCH("/:uuid/rename", func(c *gin.Context) {
@@ -756,6 +882,439 @@ func setupRouter(cfg *config.Config, local *localdb.LocalDB, connMgr *db.Connect
 				}
 				c.JSON(http.StatusOK, config)
 			})
+
+			configs.PATCH("/:uuid/project", func(c *gin.Context) {
+				uuid := c.Param("uuid")
+				var req struct {
+					ProjectUUID string `json:"project_uuid"`
+				}
+				if err := c.ShouldBindJSON(&req); err != nil {
+					c.JSON(http.StatusBadRequest, gin.H{"error": err.Error()})
+					return
+				}
+				updated, err := configService.SetProjectNoAuth(uuid, req.ProjectUUID)
+				if err != nil {
+					switch {
+					case errors.Is(err, services.ErrConfigNotFound):
+						c.JSON(http.StatusNotFound, gin.H{"error": err.Error()})
+					case errors.Is(err, services.ErrProjectNotFound):
+						c.JSON(http.StatusNotFound, gin.H{"error": err.Error()})
+					case errors.Is(err, services.ErrProjectForbidden):
+						c.JSON(http.StatusForbidden, gin.H{"error": err.Error()})
+					default:
+						c.JSON(http.StatusInternalServerError, gin.H{"error": err.Error()})
+					}
+					return
+				}
+				c.JSON(http.StatusOK, updated)
+			})
+
+			configs.GET("/:uuid/versions", func(c *gin.Context) {
+				uuid := c.Param("uuid")
+
+				limit, err := strconv.Atoi(c.DefaultQuery("limit", "20"))
+				if err != nil || limit <= 0 {
+					c.JSON(http.StatusBadRequest, gin.H{"error": "invalid limit"})
+					return
+				}
+				offset, err := strconv.Atoi(c.DefaultQuery("offset", "0"))
+				if err != nil || offset < 0 {
+					c.JSON(http.StatusBadRequest, gin.H{"error": "invalid offset"})
+					return
+				}
+
+				versions, err := configService.ListVersions(uuid, limit, offset)
+				if err != nil {
+					switch {
+					case errors.Is(err, services.ErrConfigNotFound):
+						c.JSON(http.StatusNotFound, gin.H{"error": "configuration not found"})
+					case errors.Is(err, services.ErrInvalidVersionNumber):
+						c.JSON(http.StatusBadRequest, gin.H{"error": "invalid paging params"})
+					default:
+						c.JSON(http.StatusInternalServerError, gin.H{"error": err.Error()})
+					}
+					return
+				}
+
+				c.JSON(http.StatusOK, gin.H{
+					"versions": versions,
+					"limit":    limit,
+					"offset":   offset,
+				})
+			})
+
+			configs.GET("/:uuid/versions/:version", func(c *gin.Context) {
+				uuid := c.Param("uuid")
+				versionNo, err := strconv.Atoi(c.Param("version"))
+				if err != nil || versionNo <= 0 {
+					c.JSON(http.StatusBadRequest, gin.H{"error": "invalid version number"})
+					return
+				}
+
+				version, err := configService.GetVersion(uuid, versionNo)
+				if err != nil {
+					switch {
+					case errors.Is(err, services.ErrInvalidVersionNumber):
+						c.JSON(http.StatusBadRequest, gin.H{"error": "invalid version number"})
+					case errors.Is(err, services.ErrConfigVersionNotFound):
+						c.JSON(http.StatusNotFound, gin.H{"error": "version not found"})
+					default:
+						c.JSON(http.StatusInternalServerError, gin.H{"error": err.Error()})
+					}
+					return
+				}
+
+				c.JSON(http.StatusOK, version)
+			})
+
+			configs.POST("/:uuid/rollback", func(c *gin.Context) {
+				uuid := c.Param("uuid")
+				var req struct {
+					TargetVersion int    `json:"target_version"`
+					Note          string `json:"note"`
+				}
+				if err := c.ShouldBindJSON(&req); err != nil {
+					c.JSON(http.StatusBadRequest, gin.H{"error": err.Error()})
+					return
+				}
+				if req.TargetVersion <= 0 {
+					c.JSON(http.StatusBadRequest, gin.H{"error": "invalid target_version"})
+					return
+				}
+
+				config, err := configService.RollbackToVersionWithNote(uuid, req.TargetVersion, dbUsername, req.Note)
+				if err != nil {
+					switch {
+					case errors.Is(err, services.ErrInvalidVersionNumber):
+						c.JSON(http.StatusBadRequest, gin.H{"error": "invalid target_version"})
+					case errors.Is(err, services.ErrConfigNotFound), errors.Is(err, services.ErrConfigVersionNotFound):
+						c.JSON(http.StatusNotFound, gin.H{"error": "version not found"})
+					case errors.Is(err, services.ErrVersionConflict):
+						c.JSON(http.StatusConflict, gin.H{"error": "version conflict"})
+					default:
+						c.JSON(http.StatusInternalServerError, gin.H{"error": err.Error()})
+					}
+					return
+				}
+
+				currentVersion, err := configService.GetCurrentVersion(uuid)
+				if err != nil {
+					c.JSON(http.StatusOK, gin.H{
+						"message": "rollback applied",
+						"config":  config,
+					})
+					return
+				}
+
+				c.JSON(http.StatusOK, gin.H{
+					"message":         "rollback applied",
+					"config":          config,
+					"current_version": currentVersion,
+				})
+			})
+		}
+
+		projects := api.Group("/projects")
+		{
+			projects.GET("", func(c *gin.Context) {
+				syncProjectsFromServer()
+				syncConfigurationsFromServer()
+
+				status := c.DefaultQuery("status", "active")
+				search := strings.ToLower(strings.TrimSpace(c.Query("search")))
+				author := strings.ToLower(strings.TrimSpace(c.Query("author")))
+				page, _ := strconv.Atoi(c.DefaultQuery("page", "1"))
+				perPage, _ := strconv.Atoi(c.DefaultQuery("per_page", "10"))
+				sortField := strings.ToLower(strings.TrimSpace(c.DefaultQuery("sort", "created_at")))
+				sortDir := strings.ToLower(strings.TrimSpace(c.DefaultQuery("dir", "desc")))
+				if status != "active" && status != "archived" && status != "all" {
+					c.JSON(http.StatusBadRequest, gin.H{"error": "invalid status"})
+					return
+				}
+				if page < 1 {
+					page = 1
+				}
+				if perPage < 1 {
+					perPage = 10
+				}
+				if perPage > 100 {
+					perPage = 100
+				}
+				if sortField != "name" && sortField != "created_at" {
+					c.JSON(http.StatusBadRequest, gin.H{"error": "invalid sort field"})
+					return
+				}
+				if sortDir != "asc" && sortDir != "desc" {
+					c.JSON(http.StatusBadRequest, gin.H{"error": "invalid sort direction"})
+					return
+				}
+
+				allProjects, err := projectService.ListByUser(dbUsername, true)
+				if err != nil {
+					c.JSON(http.StatusInternalServerError, gin.H{"error": err.Error()})
+					return
+				}
+
+				filtered := make([]models.Project, 0, len(allProjects))
+				for i := range allProjects {
+					p := allProjects[i]
+					if status == "active" && !p.IsActive {
+						continue
+					}
+					if status == "archived" && p.IsActive {
+						continue
+					}
+					if search != "" && !strings.Contains(strings.ToLower(p.Name), search) {
+						continue
+					}
+					if author != "" && !strings.Contains(strings.ToLower(strings.TrimSpace(p.OwnerUsername)), author) {
+						continue
+					}
+					filtered = append(filtered, p)
+				}
+
+				sort.Slice(filtered, func(i, j int) bool {
+					left := filtered[i]
+					right := filtered[j]
+					if sortField == "name" {
+						leftName := strings.ToLower(strings.TrimSpace(left.Name))
+						rightName := strings.ToLower(strings.TrimSpace(right.Name))
+						if leftName == rightName {
+							if sortDir == "asc" {
+								return left.CreatedAt.Before(right.CreatedAt)
+							}
+							return left.CreatedAt.After(right.CreatedAt)
+						}
+						if sortDir == "asc" {
+							return leftName < rightName
+						}
+						return leftName > rightName
+					}
+					if left.CreatedAt.Equal(right.CreatedAt) {
+						leftName := strings.ToLower(strings.TrimSpace(left.Name))
+						rightName := strings.ToLower(strings.TrimSpace(right.Name))
+						if sortDir == "asc" {
+							return leftName < rightName
+						}
+						return leftName > rightName
+					}
+					if sortDir == "asc" {
+						return left.CreatedAt.Before(right.CreatedAt)
+					}
+					return left.CreatedAt.After(right.CreatedAt)
+				})
+
+				total := len(filtered)
+				totalPages := 0
+				if total > 0 {
+					totalPages = int(math.Ceil(float64(total) / float64(perPage)))
+				}
+				if totalPages > 0 && page > totalPages {
+					page = totalPages
+				}
+
+				start := (page - 1) * perPage
+				if start < 0 {
+					start = 0
+				}
+				end := start + perPage
+				if end > total {
+					end = total
+				}
+
+				paged := []models.Project{}
+				if start < total {
+					paged = filtered[start:end]
+				}
+
+				projectRows := make([]gin.H, 0, len(paged))
+				for i := range paged {
+					p := paged[i]
+					configs, err := projectService.ListConfigurations(p.UUID, dbUsername, "active")
+					if err != nil {
+						configs = &services.ProjectConfigurationsResult{
+							ProjectUUID: p.UUID,
+							Configs:     []models.Configuration{},
+							Total:       0,
+						}
+					}
+					projectRows = append(projectRows, gin.H{
+						"id":             p.ID,
+						"uuid":           p.UUID,
+						"owner_username": p.OwnerUsername,
+						"name":           p.Name,
+						"tracker_url":    p.TrackerURL,
+						"is_active":      p.IsActive,
+						"is_system":      p.IsSystem,
+						"created_at":     p.CreatedAt,
+						"updated_at":     p.UpdatedAt,
+						"config_count":   len(configs.Configs),
+						"total":          configs.Total,
+					})
+				}
+
+				c.JSON(http.StatusOK, gin.H{
+					"projects":    projectRows,
+					"status":      status,
+					"search":      search,
+					"author":      author,
+					"sort":        sortField,
+					"dir":         sortDir,
+					"page":        page,
+					"per_page":    perPage,
+					"total":       total,
+					"total_pages": totalPages,
+				})
+			})
+
+			projects.POST("", func(c *gin.Context) {
+				var req services.CreateProjectRequest
+				if err := c.ShouldBindJSON(&req); err != nil {
+					c.JSON(http.StatusBadRequest, gin.H{"error": err.Error()})
+					return
+				}
+				if strings.TrimSpace(req.Name) == "" {
+					c.JSON(http.StatusBadRequest, gin.H{"error": "project name is required"})
+					return
+				}
+				project, err := projectService.Create(dbUsername, &req)
+				if err != nil {
+					c.JSON(http.StatusInternalServerError, gin.H{"error": err.Error()})
+					return
+				}
+				c.JSON(http.StatusCreated, project)
+			})
+
+			projects.GET("/:uuid", func(c *gin.Context) {
+				project, err := projectService.GetByUUID(c.Param("uuid"), dbUsername)
+				if err != nil {
+					switch {
+					case errors.Is(err, services.ErrProjectNotFound):
+						c.JSON(http.StatusNotFound, gin.H{"error": err.Error()})
+					case errors.Is(err, services.ErrProjectForbidden):
+						c.JSON(http.StatusForbidden, gin.H{"error": err.Error()})
+					default:
+						c.JSON(http.StatusInternalServerError, gin.H{"error": err.Error()})
+					}
+					return
+				}
+				c.JSON(http.StatusOK, project)
+			})
+
+			projects.PUT("/:uuid", func(c *gin.Context) {
+				var req services.UpdateProjectRequest
+				if err := c.ShouldBindJSON(&req); err != nil {
+					c.JSON(http.StatusBadRequest, gin.H{"error": err.Error()})
+					return
+				}
+				if strings.TrimSpace(req.Name) == "" {
+					c.JSON(http.StatusBadRequest, gin.H{"error": "project name is required"})
+					return
+				}
+				project, err := projectService.Update(c.Param("uuid"), dbUsername, &req)
+				if err != nil {
+					switch {
+					case errors.Is(err, services.ErrProjectNotFound):
+						c.JSON(http.StatusNotFound, gin.H{"error": err.Error()})
+					case errors.Is(err, services.ErrProjectForbidden):
+						c.JSON(http.StatusForbidden, gin.H{"error": err.Error()})
+					default:
+						c.JSON(http.StatusInternalServerError, gin.H{"error": err.Error()})
+					}
+					return
+				}
+				c.JSON(http.StatusOK, project)
+			})
+
+			projects.POST("/:uuid/archive", func(c *gin.Context) {
+				if err := projectService.Archive(c.Param("uuid"), dbUsername); err != nil {
+					switch {
+					case errors.Is(err, services.ErrProjectNotFound):
+						c.JSON(http.StatusNotFound, gin.H{"error": err.Error()})
+					case errors.Is(err, services.ErrProjectForbidden):
+						c.JSON(http.StatusForbidden, gin.H{"error": err.Error()})
+					default:
+						c.JSON(http.StatusInternalServerError, gin.H{"error": err.Error()})
+					}
+					return
+				}
+				c.JSON(http.StatusOK, gin.H{"message": "project archived"})
+			})
+
+			projects.POST("/:uuid/reactivate", func(c *gin.Context) {
+				if err := projectService.Reactivate(c.Param("uuid"), dbUsername); err != nil {
+					switch {
+					case errors.Is(err, services.ErrProjectNotFound):
+						c.JSON(http.StatusNotFound, gin.H{"error": err.Error()})
+					case errors.Is(err, services.ErrProjectForbidden):
+						c.JSON(http.StatusForbidden, gin.H{"error": err.Error()})
+					default:
+						c.JSON(http.StatusInternalServerError, gin.H{"error": err.Error()})
+					}
+					return
+				}
+				c.JSON(http.StatusOK, gin.H{"message": "project reactivated"})
+			})
+
+			projects.GET("/:uuid/configs", func(c *gin.Context) {
+				syncConfigurationsFromServer()
+
+				status := c.DefaultQuery("status", "active")
+				if status != "active" && status != "archived" && status != "all" {
+					c.JSON(http.StatusBadRequest, gin.H{"error": "invalid status"})
+					return
+				}
+
+				result, err := projectService.ListConfigurations(c.Param("uuid"), dbUsername, status)
+				if err != nil {
+					switch {
+					case errors.Is(err, services.ErrProjectNotFound):
+						c.JSON(http.StatusNotFound, gin.H{"error": err.Error()})
+					case errors.Is(err, services.ErrProjectForbidden):
+						c.JSON(http.StatusForbidden, gin.H{"error": err.Error()})
+					default:
+						c.JSON(http.StatusInternalServerError, gin.H{"error": err.Error()})
+					}
+					return
+				}
+				c.Header("X-Config-Status", status)
+				c.JSON(http.StatusOK, result)
+			})
+
+			projects.POST("/:uuid/configs", func(c *gin.Context) {
+				var req services.CreateConfigRequest
+				if err := c.ShouldBindJSON(&req); err != nil {
+					c.JSON(http.StatusBadRequest, gin.H{"error": err.Error()})
+					return
+				}
+				projectUUID := c.Param("uuid")
+				req.ProjectUUID = &projectUUID
+
+				config, err := configService.Create(dbUsername, &req)
+				if err != nil {
+					c.JSON(http.StatusInternalServerError, gin.H{"error": err.Error()})
+					return
+				}
+				c.JSON(http.StatusCreated, config)
+			})
+
+			projects.POST("/:uuid/configs/:config_uuid/clone", func(c *gin.Context) {
+				var req struct {
+					Name string `json:"name"`
+				}
+				if err := c.ShouldBindJSON(&req); err != nil {
+					c.JSON(http.StatusBadRequest, gin.H{"error": err.Error()})
+					return
+				}
+
+				projectUUID := c.Param("uuid")
+				config, err := configService.CloneNoAuthToProject(c.Param("config_uuid"), req.Name, dbUsername, &projectUUID)
+				if err != nil {
+					c.JSON(http.StatusInternalServerError, gin.H{"error": err.Error()})
+					return
+				}
+				c.JSON(http.StatusCreated, config)
+			})
 		}
 
 		// Pricing admin (public - RBAC disabled)
@@ -767,6 +1326,14 @@ func setupRouter(cfg *config.Config, local *localdb.LocalDB, connMgr *db.Connect
 			pricingAdmin.POST("/update", pricingHandler.UpdatePrice)
 			pricingAdmin.POST("/preview", pricingHandler.PreviewPrice)
 			pricingAdmin.POST("/recalculate-all", pricingHandler.RecalculateAll)
+			pricingAdmin.GET("/lots", pricingHandler.ListLots)
+			pricingAdmin.POST("/stock/import", pricingHandler.ImportStockLog)
+			pricingAdmin.GET("/stock/mappings", pricingHandler.ListStockMappings)
+			pricingAdmin.POST("/stock/mappings", pricingHandler.UpsertStockMapping)
+			pricingAdmin.DELETE("/stock/mappings/:partnumber", pricingHandler.DeleteStockMapping)
+			pricingAdmin.GET("/stock/ignore-rules", pricingHandler.ListStockIgnoreRules)
+			pricingAdmin.POST("/stock/ignore-rules", pricingHandler.UpsertStockIgnoreRule)
+			pricingAdmin.DELETE("/stock/ignore-rules/:id", pricingHandler.DeleteStockIgnoreRule)
 
 			pricingAdmin.GET("/alerts", pricingHandler.ListAlerts)
 			pricingAdmin.POST("/alerts/:id/acknowledge", pricingHandler.AcknowledgeAlert)
@@ -779,6 +1346,7 @@ func setupRouter(cfg *config.Config, local *localdb.LocalDB, connMgr *db.Connect
 		{
 			syncAPI.GET("/status", syncHandler.GetStatus)
 			syncAPI.GET("/info", syncHandler.GetInfo)
+			syncAPI.GET("/users-status", syncHandler.GetUsersStatus)
 			syncAPI.POST("/components", syncHandler.SyncComponents)
 			syncAPI.POST("/pricelists", syncHandler.SyncPricelists)
 			syncAPI.POST("/all", syncHandler.SyncAll)

cmd/qfs/versioning_api_test.go

@@ -0,0 +1,327 @@
+package main
+
+import (
+	"bytes"
+	"encoding/json"
+	"net/http"
+	"net/http/httptest"
+	"os"
+	"path/filepath"
+	"testing"
+
+	"git.mchus.pro/mchus/quoteforge/internal/config"
+	"git.mchus.pro/mchus/quoteforge/internal/db"
+	"git.mchus.pro/mchus/quoteforge/internal/localdb"
+	"git.mchus.pro/mchus/quoteforge/internal/models"
+	"git.mchus.pro/mchus/quoteforge/internal/services"
+	syncsvc "git.mchus.pro/mchus/quoteforge/internal/services/sync"
+)
+
+func TestConfigurationVersioningAPI(t *testing.T) {
+	moveToRepoRoot(t)
+
+	local, connMgr, configService := newAPITestStack(t)
+	_ = local
+
+	created, err := configService.Create("tester", &services.CreateConfigRequest{
+		Name:        "api-v1",
+		Items:       models.ConfigItems{{LotName: "CPU_API", Quantity: 1, UnitPrice: 1000}},
+		ServerCount: 1,
+	})
+	if err != nil {
+		t.Fatalf("create config: %v", err)
+	}
+	if _, err := configService.RenameNoAuth(created.UUID, "api-v2"); err != nil {
+		t.Fatalf("rename config: %v", err)
+	}
+
+	cfg := &config.Config{}
+	setConfigDefaults(cfg)
+	router, _, err := setupRouter(cfg, local, connMgr, nil, "tester", nil)
+	if err != nil {
+		t.Fatalf("setup router: %v", err)
+	}
+
+	// list versions happy path
+	listReq := httptest.NewRequest(http.MethodGet, "/api/configs/"+created.UUID+"/versions?limit=10&offset=0", nil)
+	listRec := httptest.NewRecorder()
+	router.ServeHTTP(listRec, listReq)
+	if listRec.Code != http.StatusOK {
+		t.Fatalf("list versions status=%d body=%s", listRec.Code, listRec.Body.String())
+	}
+
+	// get version happy path
+	getReq := httptest.NewRequest(http.MethodGet, "/api/configs/"+created.UUID+"/versions/1", nil)
+	getRec := httptest.NewRecorder()
+	router.ServeHTTP(getRec, getReq)
+	if getRec.Code != http.StatusOK {
+		t.Fatalf("get version status=%d body=%s", getRec.Code, getRec.Body.String())
+	}
+
+	// rollback happy path
+	body := []byte(`{"target_version":1,"note":"api rollback"}`)
+	rbReq := httptest.NewRequest(http.MethodPost, "/api/configs/"+created.UUID+"/rollback", bytes.NewReader(body))
+	rbReq.Header.Set("Content-Type", "application/json")
+	rbRec := httptest.NewRecorder()
+	router.ServeHTTP(rbRec, rbReq)
+	if rbRec.Code != http.StatusOK {
+		t.Fatalf("rollback status=%d body=%s", rbRec.Code, rbRec.Body.String())
+	}
+
+	var rbResp struct {
+		Message        string `json:"message"`
+		CurrentVersion struct {
+			VersionNo int `json:"version_no"`
+		} `json:"current_version"`
+	}
+	if err := json.Unmarshal(rbRec.Body.Bytes(), &rbResp); err != nil {
+		t.Fatalf("unmarshal rollback response: %v", err)
+	}
+	if rbResp.Message == "" || rbResp.CurrentVersion.VersionNo != 3 {
+		t.Fatalf("unexpected rollback response: %+v", rbResp)
+	}
+
+	// 404: version missing
+	notFoundReq := httptest.NewRequest(http.MethodGet, "/api/configs/"+created.UUID+"/versions/999", nil)
+	notFoundRec := httptest.NewRecorder()
+	router.ServeHTTP(notFoundRec, notFoundReq)
+	if notFoundRec.Code != http.StatusNotFound {
+		t.Fatalf("expected 404 for missing version, got %d", notFoundRec.Code)
+	}
+
+	// 400: invalid version number
+	invalidReq := httptest.NewRequest(http.MethodGet, "/api/configs/"+created.UUID+"/versions/abc", nil)
+	invalidRec := httptest.NewRecorder()
+	router.ServeHTTP(invalidRec, invalidReq)
+	if invalidRec.Code != http.StatusBadRequest {
+		t.Fatalf("expected 400 for invalid version, got %d", invalidRec.Code)
+	}
+
+	// 400: rollback invalid target_version
+	badRollbackReq := httptest.NewRequest(http.MethodPost, "/api/configs/"+created.UUID+"/rollback", bytes.NewReader([]byte(`{"target_version":0}`)))
+	badRollbackReq.Header.Set("Content-Type", "application/json")
+	badRollbackRec := httptest.NewRecorder()
+	router.ServeHTTP(badRollbackRec, badRollbackReq)
+	if badRollbackRec.Code != http.StatusBadRequest {
+		t.Fatalf("expected 400 for invalid rollback target, got %d", badRollbackRec.Code)
+	}
+
+	// archive + reactivate flow
+	delReq := httptest.NewRequest(http.MethodDelete, "/api/configs/"+created.UUID, nil)
+	delRec := httptest.NewRecorder()
+	router.ServeHTTP(delRec, delReq)
+	if delRec.Code != http.StatusOK {
+		t.Fatalf("archive status=%d body=%s", delRec.Code, delRec.Body.String())
+	}
+
+	archivedListReq := httptest.NewRequest(http.MethodGet, "/api/configs?status=archived&page=1&per_page=20", nil)
+	archivedListRec := httptest.NewRecorder()
+	router.ServeHTTP(archivedListRec, archivedListReq)
+	if archivedListRec.Code != http.StatusOK {
+		t.Fatalf("archived list status=%d body=%s", archivedListRec.Code, archivedListRec.Body.String())
+	}
+
+	reactivateReq := httptest.NewRequest(http.MethodPost, "/api/configs/"+created.UUID+"/reactivate", nil)
+	reactivateRec := httptest.NewRecorder()
+	router.ServeHTTP(reactivateRec, reactivateReq)
+	if reactivateRec.Code != http.StatusOK {
+		t.Fatalf("reactivate status=%d body=%s", reactivateRec.Code, reactivateRec.Body.String())
+	}
+
+	activeListReq := httptest.NewRequest(http.MethodGet, "/api/configs?status=active&page=1&per_page=20", nil)
+	activeListRec := httptest.NewRecorder()
+	router.ServeHTTP(activeListRec, activeListReq)
+	if activeListRec.Code != http.StatusOK {
+		t.Fatalf("active list status=%d body=%s", activeListRec.Code, activeListRec.Body.String())
+	}
+}
+
+func TestProjectArchiveHidesConfigsAndCloneIntoProject(t *testing.T) {
+	moveToRepoRoot(t)
+
+	local, connMgr, configService := newAPITestStack(t)
+	_ = configService
+
+	cfg := &config.Config{}
+	setConfigDefaults(cfg)
+	router, _, err := setupRouter(cfg, local, connMgr, nil, "tester", nil)
+	if err != nil {
+		t.Fatalf("setup router: %v", err)
+	}
+
+	createProjectReq := httptest.NewRequest(http.MethodPost, "/api/projects", bytes.NewReader([]byte(`{"name":"P1"}`)))
+	createProjectReq.Header.Set("Content-Type", "application/json")
+	createProjectRec := httptest.NewRecorder()
+	router.ServeHTTP(createProjectRec, createProjectReq)
+	if createProjectRec.Code != http.StatusCreated {
+		t.Fatalf("create project status=%d body=%s", createProjectRec.Code, createProjectRec.Body.String())
+	}
+	var project models.Project
+	if err := json.Unmarshal(createProjectRec.Body.Bytes(), &project); err != nil {
+		t.Fatalf("unmarshal project: %v", err)
+	}
+
+	createCfgBody := []byte(`{"name":"Cfg A","items":[{"lot_name":"CPU","quantity":1,"unit_price":100}],"server_count":1}`)
+	createCfgReq := httptest.NewRequest(http.MethodPost, "/api/projects/"+project.UUID+"/configs", bytes.NewReader(createCfgBody))
+	createCfgReq.Header.Set("Content-Type", "application/json")
+	createCfgRec := httptest.NewRecorder()
+	router.ServeHTTP(createCfgRec, createCfgReq)
+	if createCfgRec.Code != http.StatusCreated {
+		t.Fatalf("create project config status=%d body=%s", createCfgRec.Code, createCfgRec.Body.String())
+	}
+	var createdCfg models.Configuration
+	if err := json.Unmarshal(createCfgRec.Body.Bytes(), &createdCfg); err != nil {
+		t.Fatalf("unmarshal project config: %v", err)
+	}
+	if createdCfg.ProjectUUID == nil || *createdCfg.ProjectUUID != project.UUID {
+		t.Fatalf("expected config project_uuid=%s got=%v", project.UUID, createdCfg.ProjectUUID)
+	}
+
+	cloneReq := httptest.NewRequest(http.MethodPost, "/api/projects/"+project.UUID+"/configs/"+createdCfg.UUID+"/clone", bytes.NewReader([]byte(`{"name":"Cfg A Clone"}`)))
+	cloneReq.Header.Set("Content-Type", "application/json")
+	cloneRec := httptest.NewRecorder()
+	router.ServeHTTP(cloneRec, cloneReq)
+	if cloneRec.Code != http.StatusCreated {
+		t.Fatalf("clone in project status=%d body=%s", cloneRec.Code, cloneRec.Body.String())
+	}
+	var cloneCfg models.Configuration
+	if err := json.Unmarshal(cloneRec.Body.Bytes(), &cloneCfg); err != nil {
+		t.Fatalf("unmarshal clone config: %v", err)
+	}
+	if cloneCfg.ProjectUUID == nil || *cloneCfg.ProjectUUID != project.UUID {
+		t.Fatalf("expected clone project_uuid=%s got=%v", project.UUID, cloneCfg.ProjectUUID)
+	}
+
+	projectConfigsReq := httptest.NewRequest(http.MethodGet, "/api/projects/"+project.UUID+"/configs", nil)
+	projectConfigsRec := httptest.NewRecorder()
+	router.ServeHTTP(projectConfigsRec, projectConfigsReq)
+	if projectConfigsRec.Code != http.StatusOK {
+		t.Fatalf("project configs status=%d body=%s", projectConfigsRec.Code, projectConfigsRec.Body.String())
+	}
+	var projectConfigsResp struct {
+		Configurations []models.Configuration `json:"configurations"`
+	}
+	if err := json.Unmarshal(projectConfigsRec.Body.Bytes(), &projectConfigsResp); err != nil {
+		t.Fatalf("unmarshal project configs response: %v", err)
+	}
+	if len(projectConfigsResp.Configurations) != 2 {
+		t.Fatalf("expected 2 project configs after clone, got %d", len(projectConfigsResp.Configurations))
+	}
+
+	archiveReq := httptest.NewRequest(http.MethodPost, "/api/projects/"+project.UUID+"/archive", nil)
+	archiveRec := httptest.NewRecorder()
+	router.ServeHTTP(archiveRec, archiveReq)
+	if archiveRec.Code != http.StatusOK {
+		t.Fatalf("archive project status=%d body=%s", archiveRec.Code, archiveRec.Body.String())
+	}
+
+	activeReq := httptest.NewRequest(http.MethodGet, "/api/configs?status=active&page=1&per_page=20", nil)
+	activeRec := httptest.NewRecorder()
+	router.ServeHTTP(activeRec, activeReq)
+	if activeRec.Code != http.StatusOK {
+		t.Fatalf("active configs status=%d body=%s", activeRec.Code, activeRec.Body.String())
+	}
+	var activeResp struct {
+		Configurations []models.Configuration `json:"configurations"`
+	}
+	if err := json.Unmarshal(activeRec.Body.Bytes(), &activeResp); err != nil {
+		t.Fatalf("unmarshal active configs response: %v", err)
+	}
+	if len(activeResp.Configurations) != 0 {
+		t.Fatalf("expected no active configs after project archive, got %d", len(activeResp.Configurations))
+	}
+}
+
+func TestConfigMoveToProjectEndpoint(t *testing.T) {
+	moveToRepoRoot(t)
+
+	local, connMgr, _ := newAPITestStack(t)
+	cfg := &config.Config{}
+	setConfigDefaults(cfg)
+	router, _, err := setupRouter(cfg, local, connMgr, nil, "tester", nil)
+	if err != nil {
+		t.Fatalf("setup router: %v", err)
+	}
+
+	createProjectReq := httptest.NewRequest(http.MethodPost, "/api/projects", bytes.NewReader([]byte(`{"name":"Move Project"}`)))
+	createProjectReq.Header.Set("Content-Type", "application/json")
+	createProjectRec := httptest.NewRecorder()
+	router.ServeHTTP(createProjectRec, createProjectReq)
+	if createProjectRec.Code != http.StatusCreated {
+		t.Fatalf("create project status=%d body=%s", createProjectRec.Code, createProjectRec.Body.String())
+	}
+	var project models.Project
+	if err := json.Unmarshal(createProjectRec.Body.Bytes(), &project); err != nil {
+		t.Fatalf("unmarshal project: %v", err)
+	}
+
+	createConfigReq := httptest.NewRequest(http.MethodPost, "/api/configs", bytes.NewReader([]byte(`{"name":"Move Me","items":[],"notes":"","server_count":1}`)))
+	createConfigReq.Header.Set("Content-Type", "application/json")
+	createConfigRec := httptest.NewRecorder()
+	router.ServeHTTP(createConfigRec, createConfigReq)
+	if createConfigRec.Code != http.StatusCreated {
+		t.Fatalf("create config status=%d body=%s", createConfigRec.Code, createConfigRec.Body.String())
+	}
+	var created models.Configuration
+	if err := json.Unmarshal(createConfigRec.Body.Bytes(), &created); err != nil {
+		t.Fatalf("unmarshal config: %v", err)
+	}
+
+	moveReq := httptest.NewRequest(http.MethodPatch, "/api/configs/"+created.UUID+"/project", bytes.NewReader([]byte(`{"project_uuid":"`+project.UUID+`"}`)))
+	moveReq.Header.Set("Content-Type", "application/json")
+	moveRec := httptest.NewRecorder()
+	router.ServeHTTP(moveRec, moveReq)
+	if moveRec.Code != http.StatusOK {
+		t.Fatalf("move config status=%d body=%s", moveRec.Code, moveRec.Body.String())
+	}
+
+	getReq := httptest.NewRequest(http.MethodGet, "/api/configs/"+created.UUID, nil)
+	getRec := httptest.NewRecorder()
+	router.ServeHTTP(getRec, getReq)
+	if getRec.Code != http.StatusOK {
+		t.Fatalf("get config status=%d body=%s", getRec.Code, getRec.Body.String())
+	}
+	var updated models.Configuration
+	if err := json.Unmarshal(getRec.Body.Bytes(), &updated); err != nil {
+		t.Fatalf("unmarshal updated config: %v", err)
+	}
+	if updated.ProjectUUID == nil || *updated.ProjectUUID != project.UUID {
+		t.Fatalf("expected moved project_uuid=%s, got %v", project.UUID, updated.ProjectUUID)
+	}
+}
+
+func newAPITestStack(t *testing.T) (*localdb.LocalDB, *db.ConnectionManager, *services.LocalConfigurationService) {
+	t.Helper()
+
+	localPath := filepath.Join(t.TempDir(), "api.db")
+	local, err := localdb.New(localPath)
+	if err != nil {
+		t.Fatalf("init local db: %v", err)
+	}
+	t.Cleanup(func() { _ = local.Close() })
+
+	connMgr := db.NewConnectionManager(local)
+	syncService := syncsvc.NewService(connMgr, local)
+	configService := services.NewLocalConfigurationService(
+		local,
+		syncService,
+		&services.QuoteService{},
+		func() bool { return false },
+	)
+	return local, connMgr, configService
+}
+
+func moveToRepoRoot(t *testing.T) {
+	t.Helper()
+	wd, err := os.Getwd()
+	if err != nil {
+		t.Fatalf("getwd: %v", err)
+	}
+	root := filepath.Clean(filepath.Join(wd, "..", ".."))
+	if err := os.Chdir(root); err != nil {
+		t.Fatalf("chdir repo root: %v", err)
+	}
+	t.Cleanup(func() {
+		_ = os.Chdir(wd)
+	})
+}

internal/appmeta/version.go

@@ -0,0 +1,26 @@
+package appmeta
+
+import "sync/atomic"
+
+var appVersion atomic.Value
+
+func init() {
+	appVersion.Store("dev")
+}
+
+// SetVersion configures the running application version string.
+func SetVersion(v string) {
+	if v == "" {
+		v = "dev"
+	}
+	appVersion.Store(v)
+}
+
+// Version returns the running application version string.
+func Version() string {
+	if v, ok := appVersion.Load().(string); ok && v != "" {
+		return v
+	}
+	return "dev"
+}
+

internal/config/config.go

@@ -2,9 +2,12 @@ package config
 
 import (
 	"fmt"
+	"net"
 	"os"
+	"strconv"
 	"time"
 
+	mysqlDriver "github.com/go-sql-driver/mysql"
 	"gopkg.in/yaml.v3"
 )
 
@@ -39,8 +42,18 @@ type DatabaseConfig struct {
 }
 
 func (d *DatabaseConfig) DSN() string {
-	return fmt.Sprintf("%s:%s@tcp(%s:%d)/%s?charset=utf8mb4&parseTime=True&loc=Local",
-		d.User, d.Password, d.Host, d.Port, d.Name)
+	cfg := mysqlDriver.NewConfig()
+	cfg.User = d.User
+	cfg.Passwd = d.Password
+	cfg.Net = "tcp"
+	cfg.Addr = net.JoinHostPort(d.Host, strconv.Itoa(d.Port))
+	cfg.DBName = d.Name
+	cfg.ParseTime = true
+	cfg.Loc = time.Local
+	cfg.Params = map[string]string{
+		"charset": "utf8mb4",
+	}
+	return cfg.FormatDSN()
 }
 
 type AuthConfig struct {

internal/handlers/pricelist.go

@@ -1,12 +1,16 @@
 package handlers
 
 import (
+	"errors"
+	"fmt"
+	"io"
 	"net/http"
 	"strconv"
 
-	"github.com/gin-gonic/gin"
 	"git.mchus.pro/mchus/quoteforge/internal/localdb"
+	"git.mchus.pro/mchus/quoteforge/internal/models"
 	"git.mchus.pro/mchus/quoteforge/internal/services/pricelist"
+	"github.com/gin-gonic/gin"
 )
 
 type PricelistHandler struct {
@@ -22,8 +26,20 @@ func NewPricelistHandler(service *pricelist.Service, localDB *localdb.LocalDB) *
 func (h *PricelistHandler) List(c *gin.Context) {
 	page, _ := strconv.Atoi(c.DefaultQuery("page", "1"))
 	perPage, _ := strconv.Atoi(c.DefaultQuery("per_page", "20"))
+	activeOnly := c.DefaultQuery("active_only", "false") == "true"
+	source := c.Query("source")
 
-	pricelists, total, err := h.service.List(page, perPage)
+	var (
+		pricelists any
+		total      int64
+		err        error
+	)
+
+	if activeOnly {
+		pricelists, total, err = h.service.ListActiveBySource(page, perPage, source)
+	} else {
+		pricelists, total, err = h.service.ListBySource(page, perPage, source)
+	}
 	if err != nil {
 		c.JSON(http.StatusInternalServerError, gin.H{"error": err.Error()})
 		return
@@ -33,11 +49,21 @@ func (h *PricelistHandler) List(c *gin.Context) {
 	if total == 0 && h.localDB != nil {
 		localPLs, err := h.localDB.GetLocalPricelists()
 		if err == nil && len(localPLs) > 0 {
+			if source != "" {
+				filtered := localPLs[:0]
+				for _, lpl := range localPLs {
+					if lpl.Source == source {
+						filtered = append(filtered, lpl)
+					}
+				}
+				localPLs = filtered
+			}
 			// Convert to PricelistSummary format
 			summaries := make([]map[string]interface{}, len(localPLs))
 			for i, lpl := range localPLs {
 				summaries[i] = map[string]interface{}{
 					"id":          lpl.ServerID,
+					"source":      lpl.Source,
 					"version":     lpl.Version,
 					"created_by":  "sync",
 					"item_count":  0, // Not tracked
@@ -87,13 +113,42 @@ func (h *PricelistHandler) Get(c *gin.Context) {
 
 // Create creates a new pricelist from current prices
 func (h *PricelistHandler) Create(c *gin.Context) {
+	canWrite, debugInfo := h.service.CanWriteDebug()
+	if !canWrite {
+		c.JSON(http.StatusForbidden, gin.H{
+			"error": "pricelist write is not allowed",
+			"debug": debugInfo,
+		})
+		return
+	}
+
+	var req struct {
+		Source string `json:"source"`
+		Items  []struct {
+			LotName string  `json:"lot_name"`
+			Price   float64 `json:"price"`
+		} `json:"items"`
+	}
+	if err := c.ShouldBindJSON(&req); err != nil && !errors.Is(err, io.EOF) {
+		c.JSON(http.StatusBadRequest, gin.H{"error": err.Error()})
+		return
+	}
+	source := string(models.NormalizePricelistSource(req.Source))
+
 	// Get the database username as the creator
 	createdBy := h.localDB.GetDBUser()
 	if createdBy == "" {
 		createdBy = "unknown"
 	}
+	sourceItems := make([]pricelist.CreateItemInput, 0, len(req.Items))
+	for _, item := range req.Items {
+		sourceItems = append(sourceItems, pricelist.CreateItemInput{
+			LotName: item.LotName,
+			Price:   item.Price,
+		})
+	}
 
-	pl, err := h.service.CreateFromCurrentPrices(createdBy)
+	pl, err := h.service.CreateForSourceWithProgress(createdBy, source, sourceItems, nil)
 	if err != nil {
 		c.JSON(http.StatusInternalServerError, gin.H{"error": err.Error()})
 		return
@@ -102,8 +157,105 @@ func (h *PricelistHandler) Create(c *gin.Context) {
 	c.JSON(http.StatusCreated, pl)
 }
 
+// CreateWithProgress creates a pricelist and streams progress updates over SSE.
+func (h *PricelistHandler) CreateWithProgress(c *gin.Context) {
+	canWrite, debugInfo := h.service.CanWriteDebug()
+	if !canWrite {
+		c.JSON(http.StatusForbidden, gin.H{
+			"error": "pricelist write is not allowed",
+			"debug": debugInfo,
+		})
+		return
+	}
+
+	var req struct {
+		Source string `json:"source"`
+		Items  []struct {
+			LotName string  `json:"lot_name"`
+			Price   float64 `json:"price"`
+		} `json:"items"`
+	}
+	if err := c.ShouldBindJSON(&req); err != nil && !errors.Is(err, io.EOF) {
+		c.JSON(http.StatusBadRequest, gin.H{"error": err.Error()})
+		return
+	}
+	source := string(models.NormalizePricelistSource(req.Source))
+
+	createdBy := h.localDB.GetDBUser()
+	if createdBy == "" {
+		createdBy = "unknown"
+	}
+	sourceItems := make([]pricelist.CreateItemInput, 0, len(req.Items))
+	for _, item := range req.Items {
+		sourceItems = append(sourceItems, pricelist.CreateItemInput{
+			LotName: item.LotName,
+			Price:   item.Price,
+		})
+	}
+
+	c.Header("Content-Type", "text/event-stream")
+	c.Header("Cache-Control", "no-cache")
+	c.Header("Connection", "keep-alive")
+	c.Header("X-Accel-Buffering", "no")
+
+	flusher, ok := c.Writer.(http.Flusher)
+	if !ok {
+		pl, err := h.service.CreateForSourceWithProgress(createdBy, source, sourceItems, nil)
+		if err != nil {
+			c.JSON(http.StatusInternalServerError, gin.H{"error": err.Error()})
+			return
+		}
+		c.JSON(http.StatusCreated, pl)
+		return
+	}
+
+	sendProgress := func(payload gin.H) {
+		c.SSEvent("progress", payload)
+		flusher.Flush()
+	}
+
+	sendProgress(gin.H{"current": 0, "total": 4, "status": "starting", "message": "Запуск..."})
+	pl, err := h.service.CreateForSourceWithProgress(createdBy, source, sourceItems, func(p pricelist.CreateProgress) {
+		sendProgress(gin.H{
+			"current":  p.Current,
+			"total":    p.Total,
+			"status":   p.Status,
+			"message":  p.Message,
+			"updated":  p.Updated,
+			"errors":   p.Errors,
+			"lot_name": p.LotName,
+		})
+	})
+	if err != nil {
+		sendProgress(gin.H{
+			"current": 0,
+			"total":   4,
+			"status":  "error",
+			"message": fmt.Sprintf("Ошибка: %v", err),
+		})
+		return
+	}
+
+	sendProgress(gin.H{
+		"current":   4,
+		"total":     4,
+		"status":    "completed",
+		"message":   "Готово",
+		"pricelist": pl,
+	})
+}
+
 // Delete deletes a pricelist by ID
 func (h *PricelistHandler) Delete(c *gin.Context) {
+	canWrite, debugInfo := h.service.CanWriteDebug()
+	if !canWrite {
+		c.JSON(http.StatusForbidden, gin.H{
+			"error": "pricelist write is not allowed",
+			"debug": debugInfo,
+		})
+		return
+	}
+
 	idStr := c.Param("id")
 	id, err := strconv.ParseUint(idStr, 10, 32)
 	if err != nil {
@@ -119,6 +271,40 @@ func (h *PricelistHandler) Delete(c *gin.Context) {
 	c.JSON(http.StatusOK, gin.H{"message": "pricelist deleted"})
 }
 
+// SetActive toggles active flag on a pricelist.
+func (h *PricelistHandler) SetActive(c *gin.Context) {
+	canWrite, debugInfo := h.service.CanWriteDebug()
+	if !canWrite {
+		c.JSON(http.StatusForbidden, gin.H{
+			"error": "pricelist write is not allowed",
+			"debug": debugInfo,
+		})
+		return
+	}
+
+	idStr := c.Param("id")
+	id, err := strconv.ParseUint(idStr, 10, 32)
+	if err != nil {
+		c.JSON(http.StatusBadRequest, gin.H{"error": "invalid pricelist ID"})
+		return
+	}
+
+	var req struct {
+		IsActive bool `json:"is_active"`
+	}
+	if err := c.ShouldBindJSON(&req); err != nil {
+		c.JSON(http.StatusBadRequest, gin.H{"error": err.Error()})
+		return
+	}
+
+	if err := h.service.SetActive(uint(id), req.IsActive); err != nil {
+		c.JSON(http.StatusBadRequest, gin.H{"error": err.Error()})
+		return
+	}
+
+	c.JSON(http.StatusOK, gin.H{"message": "updated", "is_active": req.IsActive})
+}
+
 // GetItems returns items for a pricelist with pagination
 func (h *PricelistHandler) GetItems(c *gin.Context) {
 	idStr := c.Param("id")
@@ -137,8 +323,14 @@ func (h *PricelistHandler) GetItems(c *gin.Context) {
 		c.JSON(http.StatusInternalServerError, gin.H{"error": err.Error()})
 		return
 	}
+	pl, _ := h.service.GetByID(uint(id))
+	source := ""
+	if pl != nil {
+		source = pl.Source
+	}
 
 	c.JSON(http.StatusOK, gin.H{
+		"source":   source,
 		"items":    items,
 		"total":    total,
 		"page":     page,
@@ -154,15 +346,18 @@ func (h *PricelistHandler) CanWrite(c *gin.Context) {
 
 // GetLatest returns the most recent active pricelist
 func (h *PricelistHandler) GetLatest(c *gin.Context) {
+	source := c.DefaultQuery("source", string(models.PricelistSourceEstimate))
+	source = string(models.NormalizePricelistSource(source))
+
 	// Try to get from server first
-	pl, err := h.service.GetLatestActive()
+	pl, err := h.service.GetLatestActiveBySource(source)
 	if err != nil {
 		// If offline or no server pricelists, try to get from local cache
 		if h.localDB == nil {
 			c.JSON(http.StatusNotFound, gin.H{"error": "no database available"})
 			return
 		}
-		localPL, localErr := h.localDB.GetLatestLocalPricelist()
+		localPL, localErr := h.localDB.GetLatestLocalPricelistBySource(source)
 		if localErr != nil {
 			// No local pricelists either
 			c.JSON(http.StatusNotFound, gin.H{
@@ -174,6 +369,7 @@ func (h *PricelistHandler) GetLatest(c *gin.Context) {
 		// Return local pricelist
 		c.JSON(http.StatusOK, gin.H{
 			"id":          localPL.ServerID,
+			"source":      localPL.Source,
 			"version":     localPL.Version,
 			"created_by":  "sync",
 			"item_count":  0, // Not tracked in local pricelists

internal/handlers/pricing.go

@@ -1,17 +1,20 @@
 package handlers
 
 import (
+	"io"
 	"net/http"
+	"os"
 	"sort"
 	"strconv"
 	"strings"
 	"time"
 
-	"github.com/gin-gonic/gin"
 	"git.mchus.pro/mchus/quoteforge/internal/models"
 	"git.mchus.pro/mchus/quoteforge/internal/repository"
+	"git.mchus.pro/mchus/quoteforge/internal/services"
 	"git.mchus.pro/mchus/quoteforge/internal/services/alerts"
 	"git.mchus.pro/mchus/quoteforge/internal/services/pricing"
+	"github.com/gin-gonic/gin"
 	"gorm.io/gorm"
 )
 
@@ -41,12 +44,14 @@ func calculateAverage(prices []float64) float64 {
 }
 
 type PricingHandler struct {
-	db             *gorm.DB
-	pricingService *pricing.Service
-	alertService   *alerts.Service
-	componentRepo  *repository.ComponentRepository
-	priceRepo      *repository.PriceRepository
-	statsRepo      *repository.StatsRepository
+	db                 *gorm.DB
+	pricingService     *pricing.Service
+	alertService       *alerts.Service
+	componentRepo      *repository.ComponentRepository
+	priceRepo          *repository.PriceRepository
+	statsRepo          *repository.StatsRepository
+	stockImportService *services.StockImportService
+	dbUsername         string
 }
 
 func NewPricingHandler(
@@ -56,14 +61,18 @@ func NewPricingHandler(
 	componentRepo *repository.ComponentRepository,
 	priceRepo *repository.PriceRepository,
 	statsRepo *repository.StatsRepository,
+	stockImportService *services.StockImportService,
+	dbUsername string,
 ) *PricingHandler {
 	return &PricingHandler{
-		db:             db,
-		pricingService: pricingService,
-		alertService:   alertService,
-		componentRepo:  componentRepo,
-		priceRepo:      priceRepo,
-		statsRepo:      statsRepo,
+		db:                 db,
+		pricingService:     pricingService,
+		alertService:       alertService,
+		componentRepo:      componentRepo,
+		priceRepo:          priceRepo,
+		statsRepo:          statsRepo,
+		stockImportService: stockImportService,
+		dbUsername:         dbUsername,
 	}
 }
 
@@ -936,3 +945,275 @@ func expandMetaPricesWithCache(metaPrices, excludeLot string, allLotNames []stri
 
 	return result
 }
+
+func (h *PricingHandler) ImportStockLog(c *gin.Context) {
+	if h.stockImportService == nil {
+		c.JSON(http.StatusServiceUnavailable, gin.H{
+			"error":   "Импорт склада доступен только в онлайн режиме",
+			"offline": true,
+		})
+		return
+	}
+
+	fileHeader, err := c.FormFile("file")
+	if err != nil {
+		c.JSON(http.StatusBadRequest, gin.H{"error": "file is required"})
+		return
+	}
+
+	file, err := fileHeader.Open()
+	if err != nil {
+		c.JSON(http.StatusBadRequest, gin.H{"error": "failed to open uploaded file"})
+		return
+	}
+	defer file.Close()
+
+	content, err := io.ReadAll(file)
+	if err != nil {
+		c.JSON(http.StatusBadRequest, gin.H{"error": "failed to read uploaded file"})
+		return
+	}
+	modTime := time.Now()
+	if statter, ok := file.(interface{ Stat() (os.FileInfo, error) }); ok {
+		if st, statErr := statter.Stat(); statErr == nil {
+			modTime = st.ModTime()
+		}
+	}
+
+	flusher, ok := c.Writer.(http.Flusher)
+	if !ok {
+		result, impErr := h.stockImportService.Import(fileHeader.Filename, content, modTime, h.dbUsername, nil)
+		if impErr != nil {
+			c.JSON(http.StatusBadRequest, gin.H{"error": impErr.Error()})
+			return
+		}
+		c.JSON(http.StatusOK, gin.H{
+			"status":                      "completed",
+			"rows_total":                  result.RowsTotal,
+			"valid_rows":                  result.ValidRows,
+			"inserted":                    result.Inserted,
+			"deleted":                     result.Deleted,
+			"unmapped":                    result.Unmapped,
+			"conflicts":                   result.Conflicts,
+			"fallback_matches":            result.FallbackMatches,
+			"parse_errors":                result.ParseErrors,
+			"ignored":                     result.Ignored,
+			"mapping_suggestions":         result.MappingSuggestions,
+			"import_date":                 result.ImportDate.Format("2006-01-02"),
+			"warehouse_pricelist_id":      result.WarehousePLID,
+			"warehouse_pricelist_version": result.WarehousePLVer,
+		})
+		return
+	}
+
+	c.Header("Content-Type", "text/event-stream")
+	c.Header("Cache-Control", "no-cache")
+	c.Header("Connection", "keep-alive")
+	c.Header("X-Accel-Buffering", "no")
+
+	send := func(p gin.H) {
+		c.SSEvent("progress", p)
+		flusher.Flush()
+	}
+
+	send(gin.H{"status": "starting", "message": "Запуск импорта"})
+	_, impErr := h.stockImportService.Import(fileHeader.Filename, content, modTime, h.dbUsername, func(p services.StockImportProgress) {
+		send(gin.H{
+			"status":                      p.Status,
+			"message":                     p.Message,
+			"current":                     p.Current,
+			"total":                       p.Total,
+			"rows_total":                  p.RowsTotal,
+			"valid_rows":                  p.ValidRows,
+			"inserted":                    p.Inserted,
+			"deleted":                     p.Deleted,
+			"unmapped":                    p.Unmapped,
+			"conflicts":                   p.Conflicts,
+			"fallback_matches":            p.FallbackMatches,
+			"parse_errors":                p.ParseErrors,
+			"ignored":                     p.Ignored,
+			"mapping_suggestions":         p.MappingSuggestions,
+			"import_date":                 p.ImportDate,
+			"warehouse_pricelist_id":      p.PricelistID,
+			"warehouse_pricelist_version": p.PricelistVer,
+		})
+	})
+	if impErr != nil {
+		send(gin.H{"status": "error", "message": impErr.Error()})
+		return
+	}
+}
+
+func (h *PricingHandler) ListStockMappings(c *gin.Context) {
+	if h.stockImportService == nil {
+		c.JSON(http.StatusServiceUnavailable, gin.H{
+			"error":   "Сопоставления доступны только в онлайн режиме",
+			"offline": true,
+		})
+		return
+	}
+
+	page, _ := strconv.Atoi(c.DefaultQuery("page", "1"))
+	perPage, _ := strconv.Atoi(c.DefaultQuery("per_page", "50"))
+	search := c.Query("search")
+
+	rows, total, err := h.stockImportService.ListMappings(page, perPage, search)
+	if err != nil {
+		c.JSON(http.StatusInternalServerError, gin.H{"error": err.Error()})
+		return
+	}
+
+	c.JSON(http.StatusOK, gin.H{
+		"items":    rows,
+		"total":    total,
+		"page":     page,
+		"per_page": perPage,
+	})
+}
+
+func (h *PricingHandler) UpsertStockMapping(c *gin.Context) {
+	if h.stockImportService == nil {
+		c.JSON(http.StatusServiceUnavailable, gin.H{
+			"error":   "Сопоставления доступны только в онлайн режиме",
+			"offline": true,
+		})
+		return
+	}
+
+	var req struct {
+		Partnumber  string `json:"partnumber" binding:"required"`
+		LotName     string `json:"lot_name"`
+		Description string `json:"description"`
+	}
+	if err := c.ShouldBindJSON(&req); err != nil {
+		c.JSON(http.StatusBadRequest, gin.H{"error": err.Error()})
+		return
+	}
+	if err := h.stockImportService.UpsertMapping(req.Partnumber, req.LotName, req.Description); err != nil {
+		c.JSON(http.StatusBadRequest, gin.H{"error": err.Error()})
+		return
+	}
+	c.JSON(http.StatusOK, gin.H{"message": "mapping saved"})
+}
+
+func (h *PricingHandler) DeleteStockMapping(c *gin.Context) {
+	if h.stockImportService == nil {
+		c.JSON(http.StatusServiceUnavailable, gin.H{
+			"error":   "Сопоставления доступны только в онлайн режиме",
+			"offline": true,
+		})
+		return
+	}
+
+	partnumber := c.Param("partnumber")
+	deleted, err := h.stockImportService.DeleteMapping(partnumber)
+	if err != nil {
+		c.JSON(http.StatusBadRequest, gin.H{"error": err.Error()})
+		return
+	}
+	c.JSON(http.StatusOK, gin.H{"deleted": deleted})
+}
+
+func (h *PricingHandler) ListStockIgnoreRules(c *gin.Context) {
+	if h.stockImportService == nil {
+		c.JSON(http.StatusServiceUnavailable, gin.H{
+			"error":   "Правила игнорирования доступны только в онлайн режиме",
+			"offline": true,
+		})
+		return
+	}
+
+	page, _ := strconv.Atoi(c.DefaultQuery("page", "1"))
+	perPage, _ := strconv.Atoi(c.DefaultQuery("per_page", "50"))
+	rows, total, err := h.stockImportService.ListIgnoreRules(page, perPage)
+	if err != nil {
+		c.JSON(http.StatusInternalServerError, gin.H{"error": err.Error()})
+		return
+	}
+	c.JSON(http.StatusOK, gin.H{
+		"items":    rows,
+		"total":    total,
+		"page":     page,
+		"per_page": perPage,
+	})
+}
+
+func (h *PricingHandler) UpsertStockIgnoreRule(c *gin.Context) {
+	if h.stockImportService == nil {
+		c.JSON(http.StatusServiceUnavailable, gin.H{
+			"error":   "Правила игнорирования доступны только в онлайн режиме",
+			"offline": true,
+		})
+		return
+	}
+	var req struct {
+		Target    string `json:"target" binding:"required"`
+		MatchType string `json:"match_type" binding:"required"`
+		Pattern   string `json:"pattern" binding:"required"`
+	}
+	if err := c.ShouldBindJSON(&req); err != nil {
+		c.JSON(http.StatusBadRequest, gin.H{"error": err.Error()})
+		return
+	}
+	if err := h.stockImportService.UpsertIgnoreRule(req.Target, req.MatchType, req.Pattern); err != nil {
+		c.JSON(http.StatusBadRequest, gin.H{"error": err.Error()})
+		return
+	}
+	c.JSON(http.StatusOK, gin.H{"message": "ignore rule saved"})
+}
+
+func (h *PricingHandler) DeleteStockIgnoreRule(c *gin.Context) {
+	if h.stockImportService == nil {
+		c.JSON(http.StatusServiceUnavailable, gin.H{
+			"error":   "Правила игнорирования доступны только в онлайн режиме",
+			"offline": true,
+		})
+		return
+	}
+	id, err := strconv.ParseUint(c.Param("id"), 10, 64)
+	if err != nil || id == 0 {
+		c.JSON(http.StatusBadRequest, gin.H{"error": "invalid id"})
+		return
+	}
+	deleted, err := h.stockImportService.DeleteIgnoreRule(uint(id))
+	if err != nil {
+		c.JSON(http.StatusBadRequest, gin.H{"error": err.Error()})
+		return
+	}
+	c.JSON(http.StatusOK, gin.H{"deleted": deleted})
+}
+
+func (h *PricingHandler) ListLots(c *gin.Context) {
+	if h.db == nil {
+		c.JSON(http.StatusServiceUnavailable, gin.H{
+			"error":   "Список LOT доступен только в онлайн режиме",
+			"offline": true,
+		})
+		return
+	}
+	perPage, _ := strconv.Atoi(c.DefaultQuery("per_page", "500"))
+	if perPage < 1 {
+		perPage = 500
+	}
+	if perPage > 5000 {
+		perPage = 5000
+	}
+	search := strings.TrimSpace(c.Query("search"))
+	query := h.db.Model(&models.Lot{}).Select("lot_name")
+	if search != "" {
+		query = query.Where("lot_name LIKE ?", "%"+search+"%")
+	}
+	var lots []models.Lot
+	if err := query.Order("lot_name ASC").Limit(perPage).Find(&lots).Error; err != nil {
+		c.JSON(http.StatusInternalServerError, gin.H{"error": err.Error()})
+		return
+	}
+	items := make([]string, 0, len(lots))
+	for _, lot := range lots {
+		if strings.TrimSpace(lot.LotName) == "" {
+			continue
+		}
+		items = append(items, lot.LotName)
+	}
+	c.JSON(http.StatusOK, gin.H{"items": items})
+}

internal/handlers/quote.go

@@ -3,8 +3,8 @@ package handlers
 import (
 	"net/http"
 
-	"github.com/gin-gonic/gin"
 	"git.mchus.pro/mchus/quoteforge/internal/services"
+	"github.com/gin-gonic/gin"
 )
 
 type QuoteHandler struct {
@@ -49,3 +49,19 @@ func (h *QuoteHandler) Calculate(c *gin.Context) {
 		"total": result.Total,
 	})
 }
+
+func (h *QuoteHandler) PriceLevels(c *gin.Context) {
+	var req services.PriceLevelsRequest
+	if err := c.ShouldBindJSON(&req); err != nil {
+		c.JSON(http.StatusBadRequest, gin.H{"error": err.Error()})
+		return
+	}
+
+	result, err := h.quoteService.CalculatePriceLevels(&req)
+	if err != nil {
+		c.JSON(http.StatusBadRequest, gin.H{"error": err.Error()})
+		return
+	}
+
+	c.JSON(http.StatusOK, result)
+}

internal/handlers/setup.go

@@ -4,6 +4,7 @@ import (
 	"fmt"
 	"html/template"
 	"log/slog"
+	"net"
 	"net/http"
 	"os"
 	"path/filepath"
@@ -13,8 +14,9 @@ import (
 	qfassets "git.mchus.pro/mchus/quoteforge"
 	"git.mchus.pro/mchus/quoteforge/internal/db"
 	"git.mchus.pro/mchus/quoteforge/internal/localdb"
+	mysqlDriver "github.com/go-sql-driver/mysql"
 	"github.com/gin-gonic/gin"
-	"gorm.io/driver/mysql"
+	gormmysql "gorm.io/driver/mysql"
 	"gorm.io/gorm"
 	"gorm.io/gorm/logger"
 )
@@ -93,10 +95,9 @@ func (h *SetupHandler) TestConnection(c *gin.Context) {
 		}
 	}
 
-	dsn := fmt.Sprintf("%s:%s@tcp(%s:%d)/%s?charset=utf8mb4&parseTime=True&loc=Local&timeout=5s",
-		user, password, host, port, database)
+	dsn := buildMySQLDSN(host, port, database, user, password, 5*time.Second)
 
-	db, err := gorm.Open(mysql.Open(dsn), &gorm.Config{
+	db, err := gorm.Open(gormmysql.Open(dsn), &gorm.Config{
 		Logger: logger.Default.LogMode(logger.Silent),
 	})
 	if err != nil {
@@ -148,6 +149,8 @@ func (h *SetupHandler) TestConnection(c *gin.Context) {
 
 // SaveConnection saves the connection settings and signals restart
 func (h *SetupHandler) SaveConnection(c *gin.Context) {
+	existingSettings, _ := h.localDB.GetSettings()
+
 	host := c.PostForm("host")
 	portStr := c.PostForm("port")
 	database := c.PostForm("database")
@@ -167,10 +170,9 @@ func (h *SetupHandler) SaveConnection(c *gin.Context) {
 	}
 
 	// Test connection first
-	dsn := fmt.Sprintf("%s:%s@tcp(%s:%d)/%s?charset=utf8mb4&parseTime=True&loc=Local&timeout=5s",
-		user, password, host, port, database)
+	dsn := buildMySQLDSN(host, port, database, user, password, 5*time.Second)
 
-	db, err := gorm.Open(mysql.Open(dsn), &gorm.Config{
+	db, err := gorm.Open(gormmysql.Open(dsn), &gorm.Config{
 		Logger: logger.Default.LogMode(logger.Silent),
 	})
 	if err != nil {
@@ -202,19 +204,29 @@ func (h *SetupHandler) SaveConnection(c *gin.Context) {
 		}
 	}
 
-	// Always restart to properly initialize all services with the new connection
-	restartRequired := h.restartSig == nil
+	settingsChanged := existingSettings == nil ||
+		existingSettings.Host != host ||
+		existingSettings.Port != port ||
+		existingSettings.Database != database ||
+		existingSettings.User != user ||
+		existingSettings.PasswordEncrypted != password
+
+	restartQueued := settingsChanged && h.restartSig != nil
 	c.JSON(http.StatusOK, gin.H{
 		"success":          true,
 		"message":          "Settings saved.",
-		"restart_required": restartRequired,
+		"restart_required": settingsChanged,
+		"restart_queued":   restartQueued,
 	})
 
 	// Signal restart after response is sent (if restart signal is configured)
-	if h.restartSig != nil {
+	if restartQueued {
 		go func() {
 			time.Sleep(500 * time.Millisecond) // Give time for response to be sent
-			h.restartSig <- struct{}{}
+			select {
+			case h.restartSig <- struct{}{}:
+			default:
+			}
 		}()
 	}
 }
@@ -242,3 +254,19 @@ func testWritePermission(db *gorm.DB) bool {
 
 	return true
 }
+
+func buildMySQLDSN(host string, port int, database, user, password string, timeout time.Duration) string {
+	cfg := mysqlDriver.NewConfig()
+	cfg.User = user
+	cfg.Passwd = password
+	cfg.Net = "tcp"
+	cfg.Addr = net.JoinHostPort(host, strconv.Itoa(port))
+	cfg.DBName = database
+	cfg.ParseTime = true
+	cfg.Loc = time.Local
+	cfg.Timeout = timeout
+	cfg.Params = map[string]string{
+		"charset": "utf8mb4",
+	}
+	return cfg.FormatDSN()
+}

internal/handlers/sync.go

@@ -17,14 +17,16 @@ import (
 
 // SyncHandler handles sync API endpoints
 type SyncHandler struct {
-	localDB     *localdb.LocalDB
-	syncService *sync.Service
-	connMgr     *db.ConnectionManager
-	tmpl        *template.Template
+	localDB           *localdb.LocalDB
+	syncService       *sync.Service
+	connMgr           *db.ConnectionManager
+	autoSyncInterval  time.Duration
+	onlineGraceFactor float64
+	tmpl              *template.Template
 }
 
 // NewSyncHandler creates a new sync handler
-func NewSyncHandler(localDB *localdb.LocalDB, syncService *sync.Service, connMgr *db.ConnectionManager, templatesPath string) (*SyncHandler, error) {
+func NewSyncHandler(localDB *localdb.LocalDB, syncService *sync.Service, connMgr *db.ConnectionManager, templatesPath string, autoSyncInterval time.Duration) (*SyncHandler, error) {
 	// Load sync_status partial template
 	partialPath := filepath.Join(templatesPath, "partials", "sync_status.html")
 	var tmpl *template.Template
@@ -39,10 +41,12 @@ func NewSyncHandler(localDB *localdb.LocalDB, syncService *sync.Service, connMgr
 	}
 
 	return &SyncHandler{
-		localDB:     localDB,
-		syncService: syncService,
-		connMgr:     connMgr,
-		tmpl:        tmpl,
+		localDB:           localDB,
+		syncService:       syncService,
+		connMgr:           connMgr,
+		autoSyncInterval:  autoSyncInterval,
+		onlineGraceFactor: 1.10,
+		tmpl:              tmpl,
 	}, nil
 }
 
@@ -173,18 +177,28 @@ func (h *SyncHandler) SyncPricelists(c *gin.Context) {
 		Synced:   synced,
 		Duration: time.Since(startTime).String(),
 	})
+	h.syncService.RecordSyncHeartbeat()
 }
 
 // SyncAllResponse represents result of full sync
 type SyncAllResponse struct {
-	Success          bool   `json:"success"`
-	Message          string `json:"message"`
-	ComponentsSynced int    `json:"components_synced"`
-	PricelistsSynced int    `json:"pricelists_synced"`
-	Duration         string `json:"duration"`
+	Success                bool   `json:"success"`
+	Message                string `json:"message"`
+	PendingPushed          int    `json:"pending_pushed"`
+	ComponentsSynced       int    `json:"components_synced"`
+	PricelistsSynced       int    `json:"pricelists_synced"`
+	ProjectsImported       int    `json:"projects_imported"`
+	ProjectsUpdated        int    `json:"projects_updated"`
+	ProjectsSkipped        int    `json:"projects_skipped"`
+	ConfigurationsImported int    `json:"configurations_imported"`
+	ConfigurationsUpdated  int    `json:"configurations_updated"`
+	ConfigurationsSkipped  int    `json:"configurations_skipped"`
+	Duration               string `json:"duration"`
 }
 
-// SyncAll syncs both components and pricelists
+// SyncAll performs full bidirectional sync:
+// - push pending local changes (projects/configurations) to server
+// - pull components, pricelists, projects, and configurations from server
 // POST /api/sync/all
 func (h *SyncHandler) SyncAll(c *gin.Context) {
 	if !h.checkOnline() {
@@ -196,7 +210,18 @@ func (h *SyncHandler) SyncAll(c *gin.Context) {
 	}
 
 	startTime := time.Now()
-	var componentsSynced, pricelistsSynced int
+	var pendingPushed, componentsSynced, pricelistsSynced int
+
+	// Push local pending changes first (projects/configurations)
+	pendingPushed, err := h.syncService.PushPendingChanges()
+	if err != nil {
+		slog.Error("pending push failed during full sync", "error", err)
+		c.JSON(http.StatusInternalServerError, gin.H{
+			"success": false,
+			"error":   "Pending changes push failed: " + err.Error(),
+		})
+		return
+	}
 
 	// Sync components
 	mariaDB, err := h.connMgr.GetDB()
@@ -226,18 +251,56 @@ func (h *SyncHandler) SyncAll(c *gin.Context) {
 		c.JSON(http.StatusInternalServerError, gin.H{
 			"success":           false,
 			"error":             "Pricelist sync failed: " + err.Error(),
+			"pending_pushed":    pendingPushed,
 			"components_synced": componentsSynced,
 		})
 		return
 	}
 
+	projectsResult, err := h.syncService.ImportProjectsToLocal()
+	if err != nil {
+		slog.Error("project import failed during full sync", "error", err)
+		c.JSON(http.StatusInternalServerError, gin.H{
+			"success":           false,
+			"error":             "Project import failed: " + err.Error(),
+			"pending_pushed":    pendingPushed,
+			"components_synced": componentsSynced,
+			"pricelists_synced": pricelistsSynced,
+		})
+		return
+	}
+
+	configsResult, err := h.syncService.ImportConfigurationsToLocal()
+	if err != nil {
+		slog.Error("configuration import failed during full sync", "error", err)
+		c.JSON(http.StatusInternalServerError, gin.H{
+			"success":           false,
+			"error":             "Configuration import failed: " + err.Error(),
+			"pending_pushed":    pendingPushed,
+			"components_synced": componentsSynced,
+			"pricelists_synced": pricelistsSynced,
+			"projects_imported": projectsResult.Imported,
+			"projects_updated":  projectsResult.Updated,
+			"projects_skipped":  projectsResult.Skipped,
+		})
+		return
+	}
+
 	c.JSON(http.StatusOK, SyncAllResponse{
-		Success:          true,
-		Message:          "Full sync completed successfully",
-		ComponentsSynced: componentsSynced,
-		PricelistsSynced: pricelistsSynced,
-		Duration:         time.Since(startTime).String(),
+		Success:                true,
+		Message:                "Full sync completed successfully",
+		PendingPushed:          pendingPushed,
+		ComponentsSynced:       componentsSynced,
+		PricelistsSynced:       pricelistsSynced,
+		ProjectsImported:       projectsResult.Imported,
+		ProjectsUpdated:        projectsResult.Updated,
+		ProjectsSkipped:        projectsResult.Skipped,
+		ConfigurationsImported: configsResult.Imported,
+		ConfigurationsUpdated:  configsResult.Updated,
+		ConfigurationsSkipped:  configsResult.Skipped,
+		Duration:               time.Since(startTime).String(),
 	})
+	h.syncService.RecordSyncHeartbeat()
 }
 
 // checkOnline checks if MariaDB is accessible
@@ -273,6 +336,7 @@ func (h *SyncHandler) PushPendingChanges(c *gin.Context) {
 		Synced:   pushed,
 		Duration: time.Since(startTime).String(),
 	})
+	h.syncService.RecordSyncHeartbeat()
 }
 
 // GetPendingCount returns the number of pending changes
@@ -308,6 +372,14 @@ type SyncInfoResponse struct {
 	Errors     []SyncError `json:"errors,omitempty"`
 }
 
+type SyncUsersStatusResponse struct {
+	IsOnline                bool                  `json:"is_online"`
+	AutoSyncIntervalSeconds int64                 `json:"auto_sync_interval_seconds"`
+	OnlineThresholdSeconds  int64                 `json:"online_threshold_seconds"`
+	GeneratedAt             time.Time             `json:"generated_at"`
+	Users                   []sync.UserSyncStatus `json:"users"`
+}
+
 // SyncError represents a sync error
 type SyncError struct {
 	Timestamp time.Time `json:"timestamp"`
@@ -364,6 +436,43 @@ func (h *SyncHandler) GetInfo(c *gin.Context) {
 	})
 }
 
+// GetUsersStatus returns last sync timestamps for users with sync heartbeats.
+// GET /api/sync/users-status
+func (h *SyncHandler) GetUsersStatus(c *gin.Context) {
+	threshold := time.Duration(float64(h.autoSyncInterval) * h.onlineGraceFactor)
+	isOnline := h.checkOnline()
+
+	if !isOnline {
+		c.JSON(http.StatusOK, SyncUsersStatusResponse{
+			IsOnline:                false,
+			AutoSyncIntervalSeconds: int64(h.autoSyncInterval.Seconds()),
+			OnlineThresholdSeconds:  int64(threshold.Seconds()),
+			GeneratedAt:             time.Now().UTC(),
+			Users:                   []sync.UserSyncStatus{},
+		})
+		return
+	}
+
+	// Keep current client heartbeat fresh so app version is available in the table.
+	h.syncService.RecordSyncHeartbeat()
+
+	users, err := h.syncService.ListUserSyncStatuses(threshold)
+	if err != nil {
+		c.JSON(http.StatusInternalServerError, gin.H{
+			"error": err.Error(),
+		})
+		return
+	}
+
+	c.JSON(http.StatusOK, SyncUsersStatusResponse{
+		IsOnline:                true,
+		AutoSyncIntervalSeconds: int64(h.autoSyncInterval.Seconds()),
+		OnlineThresholdSeconds:  int64(threshold.Seconds()),
+		GeneratedAt:             time.Now().UTC(),
+		Users:                   users,
+	})
+}
+
 // SyncStatusPartial renders the sync status partial for htmx
 // GET /partials/sync-status
 func (h *SyncHandler) SyncStatusPartial(c *gin.Context) {

internal/handlers/web.go

@@ -67,7 +67,7 @@ func NewWebHandler(templatesPath string, componentService *services.ComponentSer
 	}
 
 	// Load each page template with base
-	simplePages := []string{"login.html", "configs.html", "admin_pricing.html", "pricelists.html", "pricelist_detail.html"}
+	simplePages := []string{"login.html", "configs.html", "projects.html", "project_detail.html", "admin_pricing.html", "pricelists.html", "pricelist_detail.html"}
 	for _, page := range simplePages {
 		pagePath := filepath.Join(templatesPath, page)
 		var tmpl *template.Template
@@ -186,6 +186,17 @@ func (h *WebHandler) Configs(c *gin.Context) {
 	h.render(c, "configs.html", gin.H{"ActivePage": "configs"})
 }
 
+func (h *WebHandler) Projects(c *gin.Context) {
+	h.render(c, "projects.html", gin.H{"ActivePage": "projects"})
+}
+
+func (h *WebHandler) ProjectDetail(c *gin.Context) {
+	h.render(c, "project_detail.html", gin.H{
+		"ActivePage":  "projects",
+		"ProjectUUID": c.Param("uuid"),
+	})
+}
+
 func (h *WebHandler) AdminPricing(c *gin.Context) {
 	h.render(c, "admin_pricing.html", gin.H{"ActivePage": "admin"})
 }

internal/localdb/components.go

@@ -385,10 +385,9 @@ func (l *LocalDB) EnsureComponentPricesFromPricelists() error {
 		return nil
 	}
 
-	// If we have components but no prices, we should load prices from pricelists
-	// Find the latest pricelist
+	// If we have components but no prices, load from latest estimate pricelist.
 	var latestPricelist LocalPricelist
-	if err := l.db.Order("created_at DESC").First(&latestPricelist).Error; err != nil {
+	if err := l.db.Where("source = ?", "estimate").Order("created_at DESC").First(&latestPricelist).Error; err != nil {
 		if err == gorm.ErrRecordNotFound {
 			slog.Warn("no pricelists found in local database")
 			return nil

internal/localdb/converters.go

@@ -19,6 +19,8 @@ func ConfigurationToLocal(cfg *models.Configuration) *LocalConfiguration {
 
 	local := &LocalConfiguration{
 		UUID:             cfg.UUID,
+		ProjectUUID:      cfg.ProjectUUID,
+		IsActive:         true,
 		Name:             cfg.Name,
 		Items:            items,
 		TotalPrice:       cfg.TotalPrice,
@@ -26,11 +28,12 @@ func ConfigurationToLocal(cfg *models.Configuration) *LocalConfiguration {
 		Notes:            cfg.Notes,
 		IsTemplate:       cfg.IsTemplate,
 		ServerCount:      cfg.ServerCount,
+		PricelistID:      cfg.PricelistID,
 		PriceUpdatedAt:   cfg.PriceUpdatedAt,
 		CreatedAt:        cfg.CreatedAt,
 		UpdatedAt:        time.Now(),
 		SyncStatus:       "pending",
-		OriginalUserID:   cfg.UserID,
+		OriginalUserID:   derefUint(cfg.UserID),
 		OriginalUsername: cfg.OwnerUsername,
 	}
 
@@ -59,8 +62,8 @@ func LocalToConfiguration(local *LocalConfiguration) *models.Configuration {
 
 	cfg := &models.Configuration{
 		UUID:           local.UUID,
-		UserID:         local.OriginalUserID,
 		OwnerUsername:  local.OriginalUsername,
+		ProjectUUID:    local.ProjectUUID,
 		Name:           local.Name,
 		Items:          items,
 		TotalPrice:     local.TotalPrice,
@@ -68,6 +71,7 @@ func LocalToConfiguration(local *LocalConfiguration) *models.Configuration {
 		Notes:          local.Notes,
 		IsTemplate:     local.IsTemplate,
 		ServerCount:    local.ServerCount,
+		PricelistID:    local.PricelistID,
 		PriceUpdatedAt: local.PriceUpdatedAt,
 		CreatedAt:      local.CreatedAt,
 	}
@@ -75,10 +79,57 @@ func LocalToConfiguration(local *LocalConfiguration) *models.Configuration {
 	if local.ServerID != nil {
 		cfg.ID = *local.ServerID
 	}
+	if local.OriginalUserID != 0 {
+		userID := local.OriginalUserID
+		cfg.UserID = &userID
+	}
 
 	return cfg
 }
 
+func derefUint(v *uint) uint {
+	if v == nil {
+		return 0
+	}
+	return *v
+}
+
+func ProjectToLocal(project *models.Project) *LocalProject {
+	local := &LocalProject{
+		UUID:          project.UUID,
+		OwnerUsername: project.OwnerUsername,
+		Name:          project.Name,
+		TrackerURL:    project.TrackerURL,
+		IsActive:      project.IsActive,
+		IsSystem:      project.IsSystem,
+		CreatedAt:     project.CreatedAt,
+		UpdatedAt:     project.UpdatedAt,
+		SyncStatus:    "pending",
+	}
+	if project.ID > 0 {
+		serverID := project.ID
+		local.ServerID = &serverID
+	}
+	return local
+}
+
+func LocalToProject(local *LocalProject) *models.Project {
+	project := &models.Project{
+		UUID:          local.UUID,
+		OwnerUsername: local.OwnerUsername,
+		Name:          local.Name,
+		TrackerURL:    local.TrackerURL,
+		IsActive:      local.IsActive,
+		IsSystem:      local.IsSystem,
+		CreatedAt:     local.CreatedAt,
+		UpdatedAt:     local.UpdatedAt,
+	}
+	if local.ServerID != nil {
+		project.ID = *local.ServerID
+	}
+	return project
+}
+
 // PricelistToLocal converts models.Pricelist to LocalPricelist
 func PricelistToLocal(pl *models.Pricelist) *LocalPricelist {
 	name := pl.Notification
@@ -88,6 +139,7 @@ func PricelistToLocal(pl *models.Pricelist) *LocalPricelist {
 
 	return &LocalPricelist{
 		ServerID:  pl.ID,
+		Source:    pl.Source,
 		Version:   pl.Version,
 		Name:      name,
 		CreatedAt: pl.CreatedAt,
@@ -100,6 +152,7 @@ func PricelistToLocal(pl *models.Pricelist) *LocalPricelist {
 func LocalToPricelist(local *LocalPricelist) *models.Pricelist {
 	return &models.Pricelist{
 		ID:           local.ServerID,
+		Source:       local.Source,
 		Version:      local.Version,
 		Notification: local.Name,
 		CreatedAt:    local.CreatedAt,

internal/localdb/local_migrations_test.go

@@ -0,0 +1,127 @@
+package localdb
+
+import (
+	"path/filepath"
+	"testing"
+	"time"
+)
+
+func TestRunLocalMigrationsBackfillsExistingConfigurations(t *testing.T) {
+	dbPath := filepath.Join(t.TempDir(), "legacy_local.db")
+
+	local, err := New(dbPath)
+	if err != nil {
+		t.Fatalf("open localdb: %v", err)
+	}
+	t.Cleanup(func() { _ = local.Close() })
+
+	cfg := &LocalConfiguration{
+		UUID:             "legacy-cfg",
+		Name:             "Legacy",
+		Items:            LocalConfigItems{},
+		SyncStatus:       "pending",
+		OriginalUsername: "tester",
+		IsActive:         true,
+	}
+	if err := local.SaveConfiguration(cfg); err != nil {
+		t.Fatalf("save seed config: %v", err)
+	}
+	if err := local.DB().Where("configuration_uuid = ?", "legacy-cfg").Delete(&LocalConfigurationVersion{}).Error; err != nil {
+		t.Fatalf("delete seed versions: %v", err)
+	}
+	if err := local.DB().Model(&LocalConfiguration{}).
+		Where("uuid = ?", "legacy-cfg").
+		Update("current_version_id", nil).Error; err != nil {
+		t.Fatalf("clear current_version_id: %v", err)
+	}
+	if err := local.DB().Where("1=1").Delete(&LocalSchemaMigration{}).Error; err != nil {
+		t.Fatalf("clear migration records: %v", err)
+	}
+
+	if err := runLocalMigrations(local.DB()); err != nil {
+		t.Fatalf("run local migrations manually: %v", err)
+	}
+
+	migratedCfg, err := local.GetConfigurationByUUID("legacy-cfg")
+	if err != nil {
+		t.Fatalf("get migrated config: %v", err)
+	}
+	if migratedCfg.CurrentVersionID == nil || *migratedCfg.CurrentVersionID == "" {
+		t.Fatalf("expected current_version_id after migration")
+	}
+	if !migratedCfg.IsActive {
+		t.Fatalf("expected migrated config to be active")
+	}
+
+	var versionCount int64
+	if err := local.DB().Model(&LocalConfigurationVersion{}).
+		Where("configuration_uuid = ?", "legacy-cfg").
+		Count(&versionCount).Error; err != nil {
+		t.Fatalf("count versions: %v", err)
+	}
+	if versionCount != 1 {
+		t.Fatalf("expected 1 backfilled version, got %d", versionCount)
+	}
+
+	var migrationCount int64
+	if err := local.DB().Model(&LocalSchemaMigration{}).Count(&migrationCount).Error; err != nil {
+		t.Fatalf("count local migrations: %v", err)
+	}
+	if migrationCount == 0 {
+		t.Fatalf("expected local migrations to be recorded")
+	}
+}
+
+func TestRunLocalMigrationsFixesPricelistVersionUniqueIndex(t *testing.T) {
+	dbPath := filepath.Join(t.TempDir(), "pricelist_index_fix.db")
+
+	local, err := New(dbPath)
+	if err != nil {
+		t.Fatalf("open localdb: %v", err)
+	}
+	t.Cleanup(func() { _ = local.Close() })
+
+	if err := local.SaveLocalPricelist(&LocalPricelist{
+		ServerID:  10,
+		Version:   "2026-02-06-001",
+		Name:      "v1",
+		CreatedAt: time.Now().Add(-time.Hour),
+		SyncedAt:  time.Now().Add(-time.Hour),
+	}); err != nil {
+		t.Fatalf("save first pricelist: %v", err)
+	}
+
+	if err := local.DB().Exec(`
+		CREATE UNIQUE INDEX IF NOT EXISTS idx_local_pricelists_version_legacy
+		ON local_pricelists(version)
+	`).Error; err != nil {
+		t.Fatalf("create legacy unique version index: %v", err)
+	}
+
+	if err := local.DB().Where("id = ?", "2026_02_06_pricelist_index_fix").
+		Delete(&LocalSchemaMigration{}).Error; err != nil {
+		t.Fatalf("delete migration record: %v", err)
+	}
+
+	if err := runLocalMigrations(local.DB()); err != nil {
+		t.Fatalf("rerun local migrations: %v", err)
+	}
+
+	if err := local.SaveLocalPricelist(&LocalPricelist{
+		ServerID:  11,
+		Version:   "2026-02-06-001",
+		Name:      "v1-duplicate-version",
+		CreatedAt: time.Now(),
+		SyncedAt:  time.Now(),
+	}); err != nil {
+		t.Fatalf("save second pricelist with duplicate version: %v", err)
+	}
+
+	var count int64
+	if err := local.DB().Model(&LocalPricelist{}).Count(&count).Error; err != nil {
+		t.Fatalf("count pricelists: %v", err)
+	}
+	if count != 2 {
+		t.Fatalf("expected 2 pricelists, got %d", count)
+	}
+}

internal/localdb/localdb.go

@@ -1,14 +1,22 @@
 package localdb
 
 import (
+	"errors"
 	"fmt"
 	"log/slog"
+	"net"
 	"os"
 	"path/filepath"
+	"strconv"
+	"strings"
 	"time"
 
+	"git.mchus.pro/mchus/quoteforge/internal/appmeta"
 	"github.com/glebarez/sqlite"
+	mysqlDriver "github.com/go-sql-driver/mysql"
+	uuidpkg "github.com/google/uuid"
 	"gorm.io/gorm"
+	"gorm.io/gorm/clause"
 	"gorm.io/gorm/logger"
 )
 
@@ -51,7 +59,9 @@ func New(dbPath string) (*LocalDB, error) {
 	// Auto-migrate all local tables
 	if err := db.AutoMigrate(
 		&ConnectionSettings{},
+		&LocalProject{},
 		&LocalConfiguration{},
+		&LocalConfigurationVersion{},
 		&LocalPricelist{},
 		&LocalPricelistItem{},
 		&LocalComponent{},
@@ -60,6 +70,9 @@ func New(dbPath string) (*LocalDB, error) {
 	); err != nil {
 		return nil, fmt.Errorf("migrating sqlite database: %w", err)
 	}
+	if err := runLocalMigrations(db); err != nil {
+		return nil, fmt.Errorf("running local sqlite migrations: %w", err)
+	}
 
 	slog.Info("local SQLite database initialized", "path", dbPath)
 
@@ -132,19 +145,23 @@ func (l *LocalDB) GetDSN() (string, error) {
 		return "", err
 	}
 
-	// Add aggressive timeouts for offline-first architecture
-	// timeout: connection establishment timeout (3s)
-	// readTimeout: I/O read timeout (3s)
-	// writeTimeout: I/O write timeout (3s)
-	dsn := fmt.Sprintf("%s:%s@tcp(%s:%d)/%s?charset=utf8mb4&parseTime=True&loc=Local&timeout=3s&readTimeout=3s&writeTimeout=3s",
-		settings.User,
-		settings.PasswordEncrypted, // Contains decrypted password after GetSettings
-		settings.Host,
-		settings.Port,
-		settings.Database,
-	)
+	cfg := mysqlDriver.NewConfig()
+	cfg.User = settings.User
+	cfg.Passwd = settings.PasswordEncrypted // Contains decrypted password after GetSettings
+	cfg.Net = "tcp"
+	cfg.Addr = net.JoinHostPort(settings.Host, strconv.Itoa(settings.Port))
+	cfg.DBName = settings.Database
+	cfg.ParseTime = true
+	cfg.Loc = time.Local
+	// Add aggressive timeouts for offline-first architecture.
+	cfg.Timeout = 3 * time.Second
+	cfg.ReadTimeout = 3 * time.Second
+	cfg.WriteTimeout = 3 * time.Second
+	cfg.Params = map[string]string{
+		"charset": "utf8mb4",
+	}
 
-	return dsn, nil
+	return cfg.FormatDSN(), nil
 }
 
 // DB returns the underlying gorm.DB for advanced operations
@@ -172,6 +189,216 @@ func (l *LocalDB) GetDBUser() string {
 
 // Configuration methods
 
+// Project methods
+
+func (l *LocalDB) SaveProject(project *LocalProject) error {
+	return l.db.Save(project).Error
+}
+
+func (l *LocalDB) GetProjects(ownerUsername string, includeArchived bool) ([]LocalProject, error) {
+	var projects []LocalProject
+	query := l.db.Model(&LocalProject{}).Where("owner_username = ?", ownerUsername)
+	if !includeArchived {
+		query = query.Where("is_active = ?", true)
+	}
+	err := query.Order("created_at DESC").Find(&projects).Error
+	return projects, err
+}
+
+func (l *LocalDB) GetAllProjects(includeArchived bool) ([]LocalProject, error) {
+	var projects []LocalProject
+	query := l.db.Model(&LocalProject{})
+	if !includeArchived {
+		query = query.Where("is_active = ?", true)
+	}
+	err := query.Order("created_at DESC").Find(&projects).Error
+	return projects, err
+}
+
+func (l *LocalDB) GetProjectByUUID(uuid string) (*LocalProject, error) {
+	var project LocalProject
+	if err := l.db.Where("uuid = ?", uuid).First(&project).Error; err != nil {
+		return nil, err
+	}
+	return &project, nil
+}
+
+func (l *LocalDB) GetProjectByName(ownerUsername, name string) (*LocalProject, error) {
+	var project LocalProject
+	if err := l.db.Where("owner_username = ? AND name = ?", ownerUsername, name).First(&project).Error; err != nil {
+		return nil, err
+	}
+	return &project, nil
+}
+
+func (l *LocalDB) GetProjectConfigurations(projectUUID string) ([]LocalConfiguration, error) {
+	var configs []LocalConfiguration
+	err := l.db.Where("project_uuid = ? AND is_active = ?", projectUUID, true).
+		Order("created_at DESC").
+		Find(&configs).Error
+	return configs, err
+}
+
+func (l *LocalDB) EnsureDefaultProject(ownerUsername string) (*LocalProject, error) {
+	project := &LocalProject{}
+	err := l.db.
+		Where("LOWER(TRIM(COALESCE(name, ''))) = LOWER(?) AND is_system = ?", "Без проекта", true).
+		Order("CASE WHEN TRIM(COALESCE(owner_username, '')) = '' THEN 0 ELSE 1 END, created_at ASC, id ASC").
+		First(project).Error
+	if err == nil {
+		return project, nil
+	}
+	if !errors.Is(err, gorm.ErrRecordNotFound) {
+		return nil, err
+	}
+
+	now := time.Now()
+	project = &LocalProject{
+		UUID:          uuidpkg.NewString(),
+		OwnerUsername: "",
+		Name:          "Без проекта",
+		IsActive:      true,
+		IsSystem:      true,
+		CreatedAt:     now,
+		UpdatedAt:     now,
+		SyncStatus:    "pending",
+	}
+	if err := l.SaveProject(project); err != nil {
+		return nil, err
+	}
+	return project, nil
+}
+
+// ConsolidateSystemProjects merges all "Без проекта" projects into one shared canonical project.
+// Configurations are reassigned to canonical UUID, duplicate projects are deleted.
+func (l *LocalDB) ConsolidateSystemProjects() (int64, error) {
+	var removed int64
+	err := l.db.Transaction(func(tx *gorm.DB) error {
+		var canonical LocalProject
+		err := tx.
+			Where("LOWER(TRIM(COALESCE(name, ''))) = LOWER(?) AND is_system = ?", "Без проекта", true).
+			Order("CASE WHEN TRIM(COALESCE(owner_username, '')) = '' THEN 0 ELSE 1 END, created_at ASC, id ASC").
+			First(&canonical).Error
+		if errors.Is(err, gorm.ErrRecordNotFound) {
+			now := time.Now()
+			canonical = LocalProject{
+				UUID:          uuidpkg.NewString(),
+				OwnerUsername: "",
+				Name:          "Без проекта",
+				IsActive:      true,
+				IsSystem:      true,
+				CreatedAt:     now,
+				UpdatedAt:     now,
+				SyncStatus:    "pending",
+			}
+			if err := tx.Create(&canonical).Error; err != nil {
+				return err
+			}
+		} else if err != nil {
+			return err
+		}
+
+		if err := tx.Model(&LocalProject{}).
+			Where("uuid = ?", canonical.UUID).
+			Updates(map[string]any{
+				"name":      "Без проекта",
+				"is_system": true,
+				"is_active": true,
+			}).Error; err != nil {
+			return err
+		}
+
+		var duplicates []LocalProject
+		if err := tx.Where("LOWER(TRIM(COALESCE(name, ''))) = LOWER(?) AND uuid <> ?", "Без проекта", canonical.UUID).
+			Find(&duplicates).Error; err != nil {
+			return err
+		}
+
+		for i := range duplicates {
+			p := duplicates[i]
+			if err := tx.Model(&LocalConfiguration{}).
+				Where("project_uuid = ?", p.UUID).
+				Update("project_uuid", canonical.UUID).Error; err != nil {
+				return err
+			}
+
+			// Remove stale pending project events for deleted UUIDs.
+			if err := tx.Where("entity_type = ? AND entity_uuid = ?", "project", p.UUID).
+				Delete(&PendingChange{}).Error; err != nil {
+				return err
+			}
+
+			res := tx.Where("uuid = ?", p.UUID).Delete(&LocalProject{})
+			if res.Error != nil {
+				return res.Error
+			}
+			removed += res.RowsAffected
+		}
+
+		// Backfill orphaned local configurations to canonical project.
+		if err := tx.Model(&LocalConfiguration{}).
+			Where("project_uuid IS NULL OR TRIM(COALESCE(project_uuid, '')) = ''").
+			Update("project_uuid", canonical.UUID).Error; err != nil {
+			return err
+		}
+
+		return nil
+	})
+	return removed, err
+}
+
+// PurgeEmptyNamelessProjects removes service-trash projects that have no linked configurations:
+// 1) projects with empty names;
+// 2) duplicate "Без проекта" rows without configurations (case-insensitive, trimmed).
+func (l *LocalDB) PurgeEmptyNamelessProjects() (int64, error) {
+	tx := l.db.Exec(`
+DELETE FROM local_projects
+WHERE (
+      TRIM(COALESCE(name, '')) = ''
+      OR LOWER(TRIM(COALESCE(name, ''))) = LOWER('Без проекта')
+)
+  AND uuid NOT IN (
+      SELECT DISTINCT project_uuid
+      FROM local_configurations
+      WHERE project_uuid IS NOT NULL AND project_uuid <> ''
+  )`)
+	return tx.RowsAffected, tx.Error
+}
+
+// BackfillConfigurationProjects ensures every configuration has project_uuid set.
+// If missing, it assigns system project "Без проекта" for configuration owner.
+func (l *LocalDB) BackfillConfigurationProjects(defaultOwner string) error {
+	configs, err := l.GetConfigurations()
+	if err != nil {
+		return err
+	}
+
+	for i := range configs {
+		cfg := configs[i]
+		if cfg.ProjectUUID != nil && *cfg.ProjectUUID != "" {
+			continue
+		}
+		owner := strings.TrimSpace(cfg.OriginalUsername)
+		if owner == "" {
+			owner = strings.TrimSpace(defaultOwner)
+		}
+		if owner == "" {
+			continue
+		}
+
+		project, err := l.EnsureDefaultProject(owner)
+		if err != nil {
+			return err
+		}
+
+		cfg.ProjectUUID = &project.UUID
+		if saveErr := l.SaveConfiguration(&cfg); saveErr != nil {
+			return saveErr
+		}
+	}
+	return nil
+}
+
 // SaveConfiguration saves a configuration to local SQLite
 func (l *LocalDB) SaveConfiguration(config *LocalConfiguration) error {
 	return l.db.Save(config).Error
@@ -193,7 +420,60 @@ func (l *LocalDB) GetConfigurationByUUID(uuid string) (*LocalConfiguration, erro
 
 // DeleteConfiguration deletes a configuration by UUID
 func (l *LocalDB) DeleteConfiguration(uuid string) error {
-	return l.db.Where("uuid = ?", uuid).Delete(&LocalConfiguration{}).Error
+	return l.DeactivateConfiguration(uuid)
+}
+
+// DeactivateConfiguration marks configuration as inactive and appends one snapshot version.
+func (l *LocalDB) DeactivateConfiguration(uuid string) error {
+	return l.db.Transaction(func(tx *gorm.DB) error {
+		var cfg LocalConfiguration
+		if err := tx.Where("uuid = ?", uuid).First(&cfg).Error; err != nil {
+			return err
+		}
+		if !cfg.IsActive {
+			return nil
+		}
+
+		cfg.IsActive = false
+		cfg.UpdatedAt = time.Now()
+		cfg.SyncStatus = "pending"
+		if err := tx.Save(&cfg).Error; err != nil {
+			return fmt.Errorf("save inactive configuration: %w", err)
+		}
+
+		var maxVersion int
+		if err := tx.Model(&LocalConfigurationVersion{}).
+			Where("configuration_uuid = ?", cfg.UUID).
+			Select("COALESCE(MAX(version_no), 0)").
+			Scan(&maxVersion).Error; err != nil {
+			return fmt.Errorf("read max version for deactivate: %w", err)
+		}
+
+		snapshot, err := BuildConfigurationSnapshot(&cfg)
+		if err != nil {
+			return fmt.Errorf("build deactivate snapshot: %w", err)
+		}
+		note := "deactivate via local delete"
+		version := &LocalConfigurationVersion{
+			ID:                uuidpkg.NewString(),
+			ConfigurationUUID: cfg.UUID,
+			VersionNo:         maxVersion + 1,
+			Data:              snapshot,
+			ChangeNote:        &note,
+			AppVersion:        appmeta.Version(),
+			CreatedAt:         time.Now(),
+		}
+		if err := tx.Create(version).Error; err != nil {
+			return fmt.Errorf("insert deactivate version: %w", err)
+		}
+		if err := tx.Model(&LocalConfiguration{}).
+			Where("uuid = ?", cfg.UUID).
+			Update("current_version_id", version.ID).Error; err != nil {
+			return fmt.Errorf("set current version after deactivate: %w", err)
+		}
+
+		return nil
+	})
 }
 
 // CountConfigurations returns the number of local configurations
@@ -243,7 +523,16 @@ func (l *LocalDB) CountLocalPricelists() int64 {
 // GetLatestLocalPricelist returns the most recently synced pricelist
 func (l *LocalDB) GetLatestLocalPricelist() (*LocalPricelist, error) {
 	var pricelist LocalPricelist
-	if err := l.db.Order("created_at DESC").First(&pricelist).Error; err != nil {
+	if err := l.db.Where("source = ?", "estimate").Order("created_at DESC").First(&pricelist).Error; err != nil {
+		return nil, err
+	}
+	return &pricelist, nil
+}
+
+// GetLatestLocalPricelistBySource returns the most recently synced pricelist for a source.
+func (l *LocalDB) GetLatestLocalPricelistBySource(source string) (*LocalPricelist, error) {
+	var pricelist LocalPricelist
+	if err := l.db.Where("source = ?", source).Order("created_at DESC").First(&pricelist).Error; err != nil {
 		return nil, err
 	}
 	return &pricelist, nil
@@ -258,6 +547,24 @@ func (l *LocalDB) GetLocalPricelistByServerID(serverID uint) (*LocalPricelist, e
 	return &pricelist, nil
 }
 
+// GetLocalPricelistByVersion returns a local pricelist by version string.
+func (l *LocalDB) GetLocalPricelistByVersion(version string) (*LocalPricelist, error) {
+	var pricelist LocalPricelist
+	if err := l.db.Where("version = ? AND source = ?", version, "estimate").First(&pricelist).Error; err != nil {
+		return nil, err
+	}
+	return &pricelist, nil
+}
+
+// GetLocalPricelistBySourceAndVersion returns a local pricelist by source and version string.
+func (l *LocalDB) GetLocalPricelistBySourceAndVersion(source, version string) (*LocalPricelist, error) {
+	var pricelist LocalPricelist
+	if err := l.db.Where("source = ? AND version = ?", source, version).First(&pricelist).Error; err != nil {
+		return nil, err
+	}
+	return &pricelist, nil
+}
+
 // GetLocalPricelistByID returns a local pricelist by its local ID
 func (l *LocalDB) GetLocalPricelistByID(id uint) (*LocalPricelist, error) {
 	var pricelist LocalPricelist
@@ -269,7 +576,17 @@ func (l *LocalDB) GetLocalPricelistByID(id uint) (*LocalPricelist, error) {
 
 // SaveLocalPricelist saves a pricelist to local SQLite
 func (l *LocalDB) SaveLocalPricelist(pricelist *LocalPricelist) error {
-	return l.db.Save(pricelist).Error
+	return l.db.Clauses(clause.OnConflict{
+		Columns: []clause.Column{{Name: "server_id"}},
+		DoUpdates: clause.Assignments(map[string]interface{}{
+			"source":     pricelist.Source,
+			"version":    pricelist.Version,
+			"name":       pricelist.Name,
+			"created_at": pricelist.CreatedAt,
+			"synced_at":  pricelist.SyncedAt,
+			"is_used":    pricelist.IsUsed,
+		}),
+	}).Create(pricelist).Error
 }
 
 // GetLocalPricelists returns all local pricelists
@@ -333,6 +650,25 @@ func (l *LocalDB) MarkPricelistAsUsed(pricelistID uint, isUsed bool) error {
 		Update("is_used", isUsed).Error
 }
 
+// RecalculateAllLocalPricelistUsage refreshes local_pricelists.is_used based on active configurations.
+func (l *LocalDB) RecalculateAllLocalPricelistUsage() error {
+	return l.db.Transaction(func(tx *gorm.DB) error {
+		if err := tx.Model(&LocalPricelist{}).Where("1 = 1").Update("is_used", false).Error; err != nil {
+			return err
+		}
+
+		return tx.Exec(`
+			UPDATE local_pricelists
+			SET is_used = 1
+			WHERE server_id IN (
+				SELECT DISTINCT pricelist_id
+				FROM local_configurations
+				WHERE pricelist_id IS NOT NULL AND is_active = 1
+			)
+		`).Error
+	})
+}
+
 // DeleteLocalPricelist deletes a pricelist and its items
 func (l *LocalDB) DeleteLocalPricelist(id uint) error {
 	// Delete items first
@@ -415,6 +751,16 @@ func (l *LocalDB) MarkChangesSynced(ids []int64) error {
 	return l.db.Where("id IN ?", ids).Delete(&PendingChange{}).Error
 }
 
+// PurgeOrphanConfigurationPendingChanges removes configuration pending changes
+// whose entity_uuid no longer exists in local_configurations.
+func (l *LocalDB) PurgeOrphanConfigurationPendingChanges() (int64, error) {
+	tx := l.db.Where(
+		"entity_type = ? AND entity_uuid NOT IN (SELECT uuid FROM local_configurations)",
+		"configuration",
+	).Delete(&PendingChange{})
+	return tx.RowsAffected, tx.Error
+}
+
 // GetPendingCount returns the total number of pending changes (alias for CountPendingChanges)
 func (l *LocalDB) GetPendingCount() int64 {
 	return l.CountPendingChanges()

internal/localdb/migration_projects_test.go

@@ -0,0 +1,60 @@
+package localdb
+
+import (
+	"path/filepath"
+	"testing"
+)
+
+func TestRunLocalMigrationsBackfillsDefaultProject(t *testing.T) {
+	dbPath := filepath.Join(t.TempDir(), "projects_backfill.db")
+
+	local, err := New(dbPath)
+	if err != nil {
+		t.Fatalf("open localdb: %v", err)
+	}
+	t.Cleanup(func() { _ = local.Close() })
+
+	cfg := &LocalConfiguration{
+		UUID:             "cfg-without-project",
+		Name:             "Cfg no project",
+		Items:            LocalConfigItems{},
+		SyncStatus:       "pending",
+		OriginalUsername: "tester",
+		IsActive:         true,
+	}
+	if err := local.SaveConfiguration(cfg); err != nil {
+		t.Fatalf("save config: %v", err)
+	}
+	if err := local.DB().
+		Model(&LocalConfiguration{}).
+		Where("uuid = ?", cfg.UUID).
+		Update("project_uuid", nil).Error; err != nil {
+		t.Fatalf("clear project_uuid: %v", err)
+	}
+	if err := local.DB().Where("id = ?", "2026_02_06_projects_backfill").Delete(&LocalSchemaMigration{}).Error; err != nil {
+		t.Fatalf("delete local migration record: %v", err)
+	}
+
+	if err := runLocalMigrations(local.DB()); err != nil {
+		t.Fatalf("run local migrations: %v", err)
+	}
+
+	updated, err := local.GetConfigurationByUUID(cfg.UUID)
+	if err != nil {
+		t.Fatalf("get updated config: %v", err)
+	}
+	if updated.ProjectUUID == nil || *updated.ProjectUUID == "" {
+		t.Fatalf("expected project_uuid to be backfilled")
+	}
+
+	project, err := local.GetProjectByUUID(*updated.ProjectUUID)
+	if err != nil {
+		t.Fatalf("get system project: %v", err)
+	}
+	if project.Name != "Без проекта" {
+		t.Fatalf("expected system project name, got %q", project.Name)
+	}
+	if !project.IsSystem {
+		t.Fatalf("expected system project flag")
+	}
+}

internal/localdb/migration_versioning_test.go

@@ -0,0 +1,131 @@
+package localdb
+
+import (
+	"encoding/json"
+	"os"
+	"path/filepath"
+	"strings"
+	"testing"
+	"time"
+
+	"github.com/glebarez/sqlite"
+	"gorm.io/gorm"
+)
+
+func TestMigration006BackfillCreatesV1AndCurrentPointer(t *testing.T) {
+	dbPath := filepath.Join(t.TempDir(), "migration_backfill.db")
+	db, err := gorm.Open(sqlite.Open(dbPath), &gorm.Config{})
+	if err != nil {
+		t.Fatalf("open sqlite: %v", err)
+	}
+
+	if err := db.Exec(`
+CREATE TABLE local_configurations (
+	id INTEGER PRIMARY KEY AUTOINCREMENT,
+	uuid TEXT NOT NULL UNIQUE,
+	server_id INTEGER NULL,
+	name TEXT NOT NULL,
+	items TEXT,
+	total_price REAL,
+	custom_price REAL,
+	notes TEXT,
+	is_template BOOLEAN DEFAULT FALSE,
+	server_count INTEGER DEFAULT 1,
+	price_updated_at DATETIME NULL,
+	created_at DATETIME,
+	updated_at DATETIME,
+	synced_at DATETIME,
+	sync_status TEXT DEFAULT 'local',
+	original_user_id INTEGER DEFAULT 0,
+	original_username TEXT DEFAULT ''
+);`).Error; err != nil {
+		t.Fatalf("create pre-migration schema: %v", err)
+	}
+
+	items := `[{"lot_name":"CPU_X","quantity":2,"unit_price":1000}]`
+	now := time.Now().UTC().Format(time.RFC3339)
+	if err := db.Exec(`
+INSERT INTO local_configurations
+	(uuid, name, items, total_price, notes, server_count, created_at, updated_at, sync_status, original_username)
+VALUES (?, ?, ?, ?, ?, ?, ?, ?, ?, ?)`,
+		"cfg-1", "Cfg One", items, 2000.0, "note", 1, now, now, "pending", "tester",
+	).Error; err != nil {
+		t.Fatalf("seed pre-migration data: %v", err)
+	}
+
+	migrationPath := filepath.Join("..", "..", "migrations", "006_add_local_configuration_versions.sql")
+	sqlBytes, err := os.ReadFile(migrationPath)
+	if err != nil {
+		t.Fatalf("read migration file: %v", err)
+	}
+	if err := execSQLScript(db, string(sqlBytes)); err != nil {
+		t.Fatalf("apply migration: %v", err)
+	}
+
+	var count int64
+	if err := db.Table("local_configuration_versions").Where("configuration_uuid = ?", "cfg-1").Count(&count).Error; err != nil {
+		t.Fatalf("count versions: %v", err)
+	}
+	if count != 1 {
+		t.Fatalf("expected 1 version, got %d", count)
+	}
+
+	var currentVersionID *string
+	if err := db.Table("local_configurations").Select("current_version_id").Where("uuid = ?", "cfg-1").Scan(&currentVersionID).Error; err != nil {
+		t.Fatalf("read current_version_id: %v", err)
+	}
+	if currentVersionID == nil || *currentVersionID == "" {
+		t.Fatalf("expected current_version_id to be set")
+	}
+
+	var row struct {
+		ID        string
+		VersionNo int
+		Data      string
+	}
+	if err := db.Table("local_configuration_versions").
+		Select("id, version_no, data").
+		Where("configuration_uuid = ?", "cfg-1").
+		First(&row).Error; err != nil {
+		t.Fatalf("load v1 row: %v", err)
+	}
+	if row.VersionNo != 1 {
+		t.Fatalf("expected version_no=1, got %d", row.VersionNo)
+	}
+	if row.ID != *currentVersionID {
+		t.Fatalf("expected current_version_id=%s, got %s", row.ID, *currentVersionID)
+	}
+
+	var snapshot map[string]any
+	if err := json.Unmarshal([]byte(row.Data), &snapshot); err != nil {
+		t.Fatalf("parse snapshot json: %v", err)
+	}
+	if snapshot["uuid"] != "cfg-1" {
+		t.Fatalf("expected snapshot uuid cfg-1, got %v", snapshot["uuid"])
+	}
+	if snapshot["name"] != "Cfg One" {
+		t.Fatalf("expected snapshot name Cfg One, got %v", snapshot["name"])
+	}
+}
+
+func execSQLScript(db *gorm.DB, script string) error {
+	var cleaned []string
+	for _, line := range strings.Split(script, "\n") {
+		trimmed := strings.TrimSpace(line)
+		if strings.HasPrefix(trimmed, "--") {
+			continue
+		}
+		cleaned = append(cleaned, line)
+	}
+
+	for _, stmt := range strings.Split(strings.Join(cleaned, "\n"), ";") {
+		sql := strings.TrimSpace(stmt)
+		if sql == "" {
+			continue
+		}
+		if err := db.Exec(sql).Error; err != nil {
+			return err
+		}
+	}
+	return nil
+}

internal/localdb/migrations.go

@@ -0,0 +1,318 @@
+package localdb
+
+import (
+	"errors"
+	"fmt"
+	"log/slog"
+	"strings"
+	"time"
+
+	"github.com/google/uuid"
+	"gorm.io/gorm"
+)
+
+type LocalSchemaMigration struct {
+	ID        string    `gorm:"primaryKey;size:128"`
+	Name      string    `gorm:"not null;size:255"`
+	AppliedAt time.Time `gorm:"not null"`
+}
+
+func (LocalSchemaMigration) TableName() string {
+	return "local_schema_migrations"
+}
+
+type localMigration struct {
+	id   string
+	name string
+	run  func(tx *gorm.DB) error
+}
+
+var localMigrations = []localMigration{
+	{
+		id:   "2026_02_04_versioning_backfill",
+		name: "Ensure configuration versioning data and current pointers",
+		run:  backfillConfigurationVersions,
+	},
+	{
+		id:   "2026_02_04_is_active_backfill",
+		name: "Ensure is_active defaults to true for existing configurations",
+		run:  backfillConfigurationIsActive,
+	},
+	{
+		id:   "2026_02_06_projects_backfill",
+		name: "Create default projects and attach existing configurations",
+		run:  backfillProjectsForConfigurations,
+	},
+	{
+		id:   "2026_02_06_pricelist_backfill",
+		name: "Attach existing configurations to latest local pricelist and recalc usage",
+		run:  backfillConfigurationPricelists,
+	},
+	{
+		id:   "2026_02_06_pricelist_index_fix",
+		name: "Use unique server_id for local pricelists and allow duplicate versions",
+		run:  fixLocalPricelistIndexes,
+	},
+	{
+		id:   "2026_02_06_pricelist_source",
+		name: "Backfill source for local pricelists and create source indexes",
+		run:  backfillLocalPricelistSource,
+	},
+}
+
+func runLocalMigrations(db *gorm.DB) error {
+	if err := db.AutoMigrate(&LocalSchemaMigration{}); err != nil {
+		return fmt.Errorf("migrate local schema migrations table: %w", err)
+	}
+
+	for _, migration := range localMigrations {
+		var count int64
+		if err := db.Model(&LocalSchemaMigration{}).Where("id = ?", migration.id).Count(&count).Error; err != nil {
+			return fmt.Errorf("check local migration %s: %w", migration.id, err)
+		}
+		if count > 0 {
+			continue
+		}
+
+		if err := db.Transaction(func(tx *gorm.DB) error {
+			if err := migration.run(tx); err != nil {
+				return fmt.Errorf("run migration %s: %w", migration.id, err)
+			}
+
+			record := &LocalSchemaMigration{
+				ID:        migration.id,
+				Name:      migration.name,
+				AppliedAt: time.Now(),
+			}
+			if err := tx.Create(record).Error; err != nil {
+				return fmt.Errorf("insert migration %s record: %w", migration.id, err)
+			}
+			return nil
+		}); err != nil {
+			return err
+		}
+
+		slog.Info("local migration applied", "id", migration.id, "name", migration.name)
+	}
+
+	return nil
+}
+
+func backfillConfigurationVersions(tx *gorm.DB) error {
+	var configs []LocalConfiguration
+	if err := tx.Find(&configs).Error; err != nil {
+		return fmt.Errorf("load local configurations for backfill: %w", err)
+	}
+
+	for i := range configs {
+		cfg := configs[i]
+		var versionCount int64
+		if err := tx.Model(&LocalConfigurationVersion{}).
+			Where("configuration_uuid = ?", cfg.UUID).
+			Count(&versionCount).Error; err != nil {
+			return fmt.Errorf("count versions for %s: %w", cfg.UUID, err)
+		}
+
+		if versionCount == 0 {
+			snapshot, err := BuildConfigurationSnapshot(&cfg)
+			if err != nil {
+				return fmt.Errorf("build initial snapshot for %s: %w", cfg.UUID, err)
+			}
+			note := "Initial snapshot backfill (v1)"
+			version := LocalConfigurationVersion{
+				ID:                uuid.NewString(),
+				ConfigurationUUID: cfg.UUID,
+				VersionNo:         1,
+				Data:              snapshot,
+				ChangeNote:        &note,
+				AppVersion:        "backfill",
+				CreatedAt:         chooseNonZeroTime(cfg.CreatedAt, time.Now()),
+			}
+			if err := tx.Create(&version).Error; err != nil {
+				return fmt.Errorf("create v1 backfill for %s: %w", cfg.UUID, err)
+			}
+		}
+
+		if cfg.CurrentVersionID == nil || *cfg.CurrentVersionID == "" {
+			var latest LocalConfigurationVersion
+			if err := tx.Where("configuration_uuid = ?", cfg.UUID).
+				Order("version_no DESC").
+				First(&latest).Error; err != nil {
+				return fmt.Errorf("load latest version for %s: %w", cfg.UUID, err)
+			}
+			if err := tx.Model(&LocalConfiguration{}).
+				Where("uuid = ?", cfg.UUID).
+				Update("current_version_id", latest.ID).Error; err != nil {
+				return fmt.Errorf("set current version for %s: %w", cfg.UUID, err)
+			}
+		}
+	}
+
+	return nil
+}
+
+func backfillConfigurationIsActive(tx *gorm.DB) error {
+	return tx.Exec("UPDATE local_configurations SET is_active = 1 WHERE is_active IS NULL").Error
+}
+
+func backfillProjectsForConfigurations(tx *gorm.DB) error {
+	var owners []string
+	if err := tx.Model(&LocalConfiguration{}).
+		Distinct("original_username").
+		Pluck("original_username", &owners).Error; err != nil {
+		return fmt.Errorf("load owners for projects backfill: %w", err)
+	}
+
+	for _, owner := range owners {
+		project, err := ensureDefaultProjectTx(tx, owner)
+		if err != nil {
+			return err
+		}
+
+		if err := tx.Model(&LocalConfiguration{}).
+			Where("original_username = ? AND (project_uuid IS NULL OR project_uuid = '')", owner).
+			Update("project_uuid", project.UUID).Error; err != nil {
+			return fmt.Errorf("assign default project for owner %s: %w", owner, err)
+		}
+	}
+
+	return nil
+}
+
+func ensureDefaultProjectTx(tx *gorm.DB, ownerUsername string) (*LocalProject, error) {
+	var project LocalProject
+	err := tx.Where("owner_username = ? AND is_system = ? AND name = ?", ownerUsername, true, "Без проекта").
+		First(&project).Error
+	if err == nil {
+		return &project, nil
+	}
+	if err != nil && !errors.Is(err, gorm.ErrRecordNotFound) {
+		return nil, fmt.Errorf("load system project for %s: %w", ownerUsername, err)
+	}
+
+	now := time.Now()
+	project = LocalProject{
+		UUID:          uuid.NewString(),
+		OwnerUsername: ownerUsername,
+		Name:          "Без проекта",
+		IsActive:      true,
+		IsSystem:      true,
+		CreatedAt:     now,
+		UpdatedAt:     now,
+		SyncStatus:    "pending",
+	}
+	if err := tx.Create(&project).Error; err != nil {
+		return nil, fmt.Errorf("create system project for %s: %w", ownerUsername, err)
+	}
+
+	return &project, nil
+}
+
+func backfillConfigurationPricelists(tx *gorm.DB) error {
+	var latest LocalPricelist
+	if err := tx.Where("source = ?", "estimate").Order("created_at DESC").First(&latest).Error; err != nil {
+		if errors.Is(err, gorm.ErrRecordNotFound) {
+			return nil
+		}
+		return fmt.Errorf("load latest local pricelist: %w", err)
+	}
+
+	if err := tx.Model(&LocalConfiguration{}).
+		Where("pricelist_id IS NULL").
+		Update("pricelist_id", latest.ServerID).Error; err != nil {
+		return fmt.Errorf("backfill configuration pricelist_id: %w", err)
+	}
+
+	if err := tx.Model(&LocalPricelist{}).Where("1 = 1").Update("is_used", false).Error; err != nil {
+		return fmt.Errorf("reset local pricelist usage flags: %w", err)
+	}
+
+	if err := tx.Exec(`
+		UPDATE local_pricelists
+		SET is_used = 1
+		WHERE server_id IN (
+			SELECT DISTINCT pricelist_id
+			FROM local_configurations
+			WHERE pricelist_id IS NOT NULL AND is_active = 1
+		)
+	`).Error; err != nil {
+		return fmt.Errorf("recalculate local pricelist usage flags: %w", err)
+	}
+
+	return nil
+}
+
+func chooseNonZeroTime(candidate time.Time, fallback time.Time) time.Time {
+	if candidate.IsZero() {
+		return fallback
+	}
+	return candidate
+}
+
+func fixLocalPricelistIndexes(tx *gorm.DB) error {
+	type indexRow struct {
+		Name   string `gorm:"column:name"`
+		Unique int    `gorm:"column:unique"`
+	}
+	var indexes []indexRow
+	if err := tx.Raw("PRAGMA index_list('local_pricelists')").Scan(&indexes).Error; err != nil {
+		return fmt.Errorf("list local_pricelists indexes: %w", err)
+	}
+
+	for _, idx := range indexes {
+		if idx.Unique == 0 {
+			continue
+		}
+
+		type indexInfoRow struct {
+			Name string `gorm:"column:name"`
+		}
+		var info []indexInfoRow
+		if err := tx.Raw(fmt.Sprintf("PRAGMA index_info('%s')", strings.ReplaceAll(idx.Name, "'", "''"))).Scan(&info).Error; err != nil {
+			return fmt.Errorf("load index info for %s: %w", idx.Name, err)
+		}
+		if len(info) != 1 || info[0].Name != "version" {
+			continue
+		}
+
+		quoted := strings.ReplaceAll(idx.Name, `"`, `""`)
+		if err := tx.Exec(fmt.Sprintf(`DROP INDEX IF EXISTS "%s"`, quoted)).Error; err != nil {
+			return fmt.Errorf("drop unique version index %s: %w", idx.Name, err)
+		}
+	}
+
+	if err := tx.Exec(`
+		CREATE UNIQUE INDEX IF NOT EXISTS idx_local_pricelists_server_id
+		ON local_pricelists(server_id)
+	`).Error; err != nil {
+		return fmt.Errorf("ensure unique index local_pricelists(server_id): %w", err)
+	}
+
+	if err := tx.Exec(`
+		CREATE INDEX IF NOT EXISTS idx_local_pricelists_version
+		ON local_pricelists(version)
+	`).Error; err != nil {
+		return fmt.Errorf("ensure index local_pricelists(version): %w", err)
+	}
+
+	return nil
+}
+
+func backfillLocalPricelistSource(tx *gorm.DB) error {
+	if err := tx.Exec(`
+		UPDATE local_pricelists
+		SET source = 'estimate'
+		WHERE source IS NULL OR source = ''
+	`).Error; err != nil {
+		return fmt.Errorf("backfill local_pricelists.source: %w", err)
+	}
+
+	if err := tx.Exec(`
+		CREATE INDEX IF NOT EXISTS idx_local_pricelists_source_created_at
+		ON local_pricelists(source, created_at DESC)
+	`).Error; err != nil {
+		return fmt.Errorf("ensure idx_local_pricelists_source_created_at: %w", err)
+	}
+
+	return nil
+}

internal/localdb/models.go

@@ -59,36 +59,79 @@ func (c LocalConfigItems) Total() float64 {
 
 // LocalConfiguration stores configurations in local SQLite
 type LocalConfiguration struct {
-	ID               uint             `gorm:"primaryKey;autoIncrement" json:"id"`
-	UUID             string           `gorm:"uniqueIndex;not null" json:"uuid"`
-	ServerID         *uint            `json:"server_id"` // ID on MariaDB server, NULL if local only
-	Name             string           `gorm:"not null" json:"name"`
-	Items            LocalConfigItems `gorm:"type:text" json:"items"` // JSON stored as text in SQLite
-	TotalPrice       *float64         `json:"total_price"`
-	CustomPrice      *float64         `json:"custom_price"`
-	Notes            string           `json:"notes"`
-	IsTemplate       bool             `gorm:"default:false" json:"is_template"`
-	ServerCount      int              `gorm:"default:1" json:"server_count"`
-	PriceUpdatedAt   *time.Time       `gorm:"type:timestamp" json:"price_updated_at,omitempty"`
-	CreatedAt        time.Time        `json:"created_at"`
-	UpdatedAt        time.Time        `json:"updated_at"`
-	SyncedAt         *time.Time       `json:"synced_at"`
-	SyncStatus       string           `gorm:"default:'local'" json:"sync_status"` // 'local', 'synced', 'modified'
-	OriginalUserID   uint             `json:"original_user_id"`                   // UserID from MariaDB for reference
-	OriginalUsername string           `gorm:"not null;default:'';index" json:"original_username"`
+	ID               uint                        `gorm:"primaryKey;autoIncrement" json:"id"`
+	UUID             string                      `gorm:"uniqueIndex;not null" json:"uuid"`
+	ServerID         *uint                       `json:"server_id"` // ID on MariaDB server, NULL if local only
+	ProjectUUID      *string                     `gorm:"index" json:"project_uuid,omitempty"`
+	CurrentVersionID *string                     `gorm:"index" json:"current_version_id,omitempty"`
+	IsActive         bool                        `gorm:"default:true;index" json:"is_active"`
+	Name             string                      `gorm:"not null" json:"name"`
+	Items            LocalConfigItems            `gorm:"type:text" json:"items"` // JSON stored as text in SQLite
+	TotalPrice       *float64                    `json:"total_price"`
+	CustomPrice      *float64                    `json:"custom_price"`
+	Notes            string                      `json:"notes"`
+	IsTemplate       bool                        `gorm:"default:false" json:"is_template"`
+	ServerCount      int                         `gorm:"default:1" json:"server_count"`
+	PricelistID      *uint                       `gorm:"index" json:"pricelist_id,omitempty"`
+	PriceUpdatedAt   *time.Time                  `gorm:"type:timestamp" json:"price_updated_at,omitempty"`
+	CreatedAt        time.Time                   `json:"created_at"`
+	UpdatedAt        time.Time                   `json:"updated_at"`
+	SyncedAt         *time.Time                  `json:"synced_at"`
+	SyncStatus       string                      `gorm:"default:'local'" json:"sync_status"` // 'local', 'synced', 'modified'
+	OriginalUserID   uint                        `json:"original_user_id"`                   // UserID from MariaDB for reference
+	OriginalUsername string                      `gorm:"not null;default:'';index" json:"original_username"`
+	CurrentVersion   *LocalConfigurationVersion  `gorm:"foreignKey:CurrentVersionID;references:ID" json:"current_version,omitempty"`
+	Versions         []LocalConfigurationVersion `gorm:"foreignKey:ConfigurationUUID;references:UUID" json:"versions,omitempty"`
 }
 
 func (LocalConfiguration) TableName() string {
 	return "local_configurations"
 }
 
+type LocalProject struct {
+	ID            uint       `gorm:"primaryKey;autoIncrement" json:"id"`
+	UUID          string     `gorm:"uniqueIndex;not null" json:"uuid"`
+	ServerID      *uint      `json:"server_id,omitempty"`
+	OwnerUsername string     `gorm:"not null;index" json:"owner_username"`
+	Name          string     `gorm:"not null" json:"name"`
+	TrackerURL    string     `json:"tracker_url"`
+	IsActive      bool       `gorm:"default:true;index" json:"is_active"`
+	IsSystem      bool       `gorm:"default:false;index" json:"is_system"`
+	CreatedAt     time.Time  `json:"created_at"`
+	UpdatedAt     time.Time  `json:"updated_at"`
+	SyncedAt      *time.Time `json:"synced_at,omitempty"`
+	SyncStatus    string     `gorm:"default:'local'" json:"sync_status"` // local/synced/pending
+}
+
+func (LocalProject) TableName() string {
+	return "local_projects"
+}
+
+// LocalConfigurationVersion stores immutable full snapshots for each configuration version
+type LocalConfigurationVersion struct {
+	ID                string              `gorm:"primaryKey" json:"id"`
+	ConfigurationUUID string              `gorm:"not null;index:idx_lcv_config_created,priority:1;index:idx_lcv_config_version,priority:1;uniqueIndex:idx_lcv_config_version_unique,priority:1" json:"configuration_uuid"`
+	VersionNo         int                 `gorm:"not null;index:idx_lcv_config_version,sort:desc,priority:2;uniqueIndex:idx_lcv_config_version_unique,priority:2" json:"version_no"`
+	Data              string              `gorm:"type:text;not null" json:"data"`
+	ChangeNote        *string             `json:"change_note,omitempty"`
+	CreatedBy         *string             `json:"created_by,omitempty"`
+	AppVersion        string              `gorm:"size:64" json:"app_version,omitempty"`
+	CreatedAt         time.Time           `gorm:"not null;autoCreateTime;index:idx_lcv_config_created,sort:desc,priority:2" json:"created_at"`
+	Configuration     *LocalConfiguration `gorm:"foreignKey:ConfigurationUUID;references:UUID" json:"configuration,omitempty"`
+}
+
+func (LocalConfigurationVersion) TableName() string {
+	return "local_configuration_versions"
+}
+
 // LocalPricelist stores cached pricelists from server
 type LocalPricelist struct {
 	ID        uint      `gorm:"primaryKey;autoIncrement" json:"id"`
-	ServerID  uint      `gorm:"not null" json:"server_id"` // ID on MariaDB server
-	Version   string    `gorm:"uniqueIndex;not null" json:"version"`
+	ServerID  uint      `gorm:"not null;uniqueIndex" json:"server_id"` // ID on MariaDB server
+	Source    string    `gorm:"not null;default:'estimate';index:idx_local_pricelists_source_created_at,priority:1" json:"source"`
+	Version   string    `gorm:"not null;index" json:"version"`
 	Name      string    `json:"name"`
-	CreatedAt time.Time `json:"created_at"`
+	CreatedAt time.Time `gorm:"index:idx_local_pricelists_source_created_at,priority:2,sort:desc" json:"created_at"`
 	SyncedAt  time.Time `json:"synced_at"`
 	IsUsed    bool      `gorm:"default:false" json:"is_used"` // Used by any local configuration
 }
@@ -128,7 +171,7 @@ type PendingChange struct {
 	ID         int64     `gorm:"primaryKey;autoIncrement" json:"id"`
 	EntityType string    `gorm:"not null;index" json:"entity_type"` // "configuration", "project", "specification"
 	EntityUUID string    `gorm:"not null;index" json:"entity_uuid"`
-	Operation  string    `gorm:"not null" json:"operation"` // "create", "update", "delete"
+	Operation  string    `gorm:"not null" json:"operation"` // "create", "update", "rollback", "deactivate", "reactivate", "delete"
 	Payload    string    `gorm:"type:text" json:"payload"`  // JSON snapshot of the entity
 	CreatedAt  time.Time `gorm:"not null" json:"created_at"`
 	Attempts   int       `gorm:"default:0" json:"attempts"` // Retry count for sync

internal/localdb/snapshots.go

@@ -0,0 +1,84 @@
+package localdb
+
+import (
+	"encoding/json"
+	"fmt"
+	"time"
+)
+
+// BuildConfigurationSnapshot serializes the full local configuration state.
+func BuildConfigurationSnapshot(localCfg *LocalConfiguration) (string, error) {
+	snapshot := map[string]interface{}{
+		"id":                 localCfg.ID,
+		"uuid":               localCfg.UUID,
+		"server_id":          localCfg.ServerID,
+		"project_uuid":       localCfg.ProjectUUID,
+		"current_version_id": localCfg.CurrentVersionID,
+		"is_active":          localCfg.IsActive,
+		"name":               localCfg.Name,
+		"items":              localCfg.Items,
+		"total_price":        localCfg.TotalPrice,
+		"custom_price":       localCfg.CustomPrice,
+		"notes":              localCfg.Notes,
+		"is_template":        localCfg.IsTemplate,
+		"server_count":       localCfg.ServerCount,
+		"pricelist_id":       localCfg.PricelistID,
+		"price_updated_at":   localCfg.PriceUpdatedAt,
+		"created_at":         localCfg.CreatedAt,
+		"updated_at":         localCfg.UpdatedAt,
+		"synced_at":          localCfg.SyncedAt,
+		"sync_status":        localCfg.SyncStatus,
+		"original_user_id":   localCfg.OriginalUserID,
+		"original_username":  localCfg.OriginalUsername,
+	}
+
+	data, err := json.Marshal(snapshot)
+	if err != nil {
+		return "", fmt.Errorf("marshal configuration snapshot: %w", err)
+	}
+	return string(data), nil
+}
+
+// DecodeConfigurationSnapshot returns editable fields from one saved snapshot.
+func DecodeConfigurationSnapshot(data string) (*LocalConfiguration, error) {
+	var snapshot struct {
+		ProjectUUID      *string          `json:"project_uuid"`
+		IsActive         *bool            `json:"is_active"`
+		Name             string           `json:"name"`
+		Items            LocalConfigItems `json:"items"`
+		TotalPrice       *float64         `json:"total_price"`
+		CustomPrice      *float64         `json:"custom_price"`
+		Notes            string           `json:"notes"`
+		IsTemplate       bool             `json:"is_template"`
+		ServerCount      int              `json:"server_count"`
+		PricelistID      *uint            `json:"pricelist_id"`
+		PriceUpdatedAt   *time.Time       `json:"price_updated_at"`
+		OriginalUserID   uint             `json:"original_user_id"`
+		OriginalUsername string           `json:"original_username"`
+	}
+
+	if err := json.Unmarshal([]byte(data), &snapshot); err != nil {
+		return nil, fmt.Errorf("unmarshal snapshot JSON: %w", err)
+	}
+
+	isActive := true
+	if snapshot.IsActive != nil {
+		isActive = *snapshot.IsActive
+	}
+
+	return &LocalConfiguration{
+		IsActive:         isActive,
+		ProjectUUID:      snapshot.ProjectUUID,
+		Name:             snapshot.Name,
+		Items:            snapshot.Items,
+		TotalPrice:       snapshot.TotalPrice,
+		CustomPrice:      snapshot.CustomPrice,
+		Notes:            snapshot.Notes,
+		IsTemplate:       snapshot.IsTemplate,
+		ServerCount:      snapshot.ServerCount,
+		PricelistID:      snapshot.PricelistID,
+		PriceUpdatedAt:   snapshot.PriceUpdatedAt,
+		OriginalUserID:   snapshot.OriginalUserID,
+		OriginalUsername: snapshot.OriginalUsername,
+	}, nil
+}

internal/models/configuration.go

@@ -42,8 +42,10 @@ func (c ConfigItems) Total() float64 {
 type Configuration struct {
 	ID             uint        `gorm:"primaryKey;autoIncrement" json:"id"`
 	UUID           string      `gorm:"size:36;uniqueIndex;not null" json:"uuid"`
-	UserID         uint        `gorm:"not null" json:"user_id"` // Legacy owner field (kept for backward compatibility)
+	UserID         *uint       `json:"user_id,omitempty"` // Legacy field, no longer required for ownership
 	OwnerUsername  string      `gorm:"size:100;not null;default:'';index" json:"owner_username"`
+	ProjectUUID    *string     `gorm:"size:36;index" json:"project_uuid,omitempty"`
+	AppVersion     string      `gorm:"size:64" json:"app_version,omitempty"`
 	Name           string      `gorm:"size:200;not null" json:"name"`
 	Items          ConfigItems `gorm:"type:json;not null" json:"items"`
 	TotalPrice     *float64    `gorm:"type:decimal(12,2)" json:"total_price"`
@@ -51,6 +53,10 @@ type Configuration struct {
 	Notes          string      `gorm:"type:text" json:"notes"`
 	IsTemplate     bool        `gorm:"default:false" json:"is_template"`
 	ServerCount    int         `gorm:"default:1" json:"server_count"`
+	PricelistID    *uint       `gorm:"index" json:"pricelist_id,omitempty"`
+	WarehousePricelistID  *uint      `gorm:"index" json:"warehouse_pricelist_id,omitempty"`
+	CompetitorPricelistID *uint      `gorm:"index" json:"competitor_pricelist_id,omitempty"`
+	DisablePriceRefresh   bool       `gorm:"default:false" json:"disable_price_refresh"`
 	PriceUpdatedAt *time.Time  `gorm:"type:timestamp" json:"price_updated_at,omitempty"`
 	CreatedAt      time.Time   `gorm:"autoCreateTime" json:"created_at"`
 

internal/models/lot.go

@@ -37,3 +37,44 @@ type Supplier struct {
 func (Supplier) TableName() string {
 	return "supplier"
 }
+
+// StockLog stores warehouse stock snapshots imported from external files.
+type StockLog struct {
+	StockLogID uint      `gorm:"column:stock_log_id;primaryKey;autoIncrement"`
+	Lot        string    `gorm:"column:lot;size:255;not null"`
+	Supplier   *string   `gorm:"column:supplier;size:255"`
+	Date       time.Time `gorm:"column:date;type:date;not null"`
+	Price      float64   `gorm:"column:price;not null"`
+	Quality    *string   `gorm:"column:quality;size:255"`
+	Comments   *string   `gorm:"column:comments;size:15000"`
+	Vendor     *string   `gorm:"column:vendor;size:255"`
+	Qty        *float64  `gorm:"column:qty"`
+}
+
+func (StockLog) TableName() string {
+	return "stock_log"
+}
+
+// LotPartnumber maps external part numbers to internal lots.
+type LotPartnumber struct {
+	Partnumber  string  `gorm:"column:partnumber;size:255;primaryKey" json:"partnumber"`
+	LotName     string  `gorm:"column:lot_name;size:255;primaryKey" json:"lot_name"`
+	Description *string `gorm:"column:description;size:10000" json:"description,omitempty"`
+}
+
+func (LotPartnumber) TableName() string {
+	return "lot_partnumbers"
+}
+
+// StockIgnoreRule contains import ignore pattern rules.
+type StockIgnoreRule struct {
+	ID        uint      `gorm:"column:id;primaryKey;autoIncrement" json:"id"`
+	Target    string    `gorm:"column:target;size:20;not null" json:"target"`         // partnumber|description
+	MatchType string    `gorm:"column:match_type;size:20;not null" json:"match_type"` // exact|prefix|suffix
+	Pattern   string    `gorm:"column:pattern;size:500;not null" json:"pattern"`
+	CreatedAt time.Time `gorm:"column:created_at;autoCreateTime" json:"created_at"`
+}
+
+func (StockIgnoreRule) TableName() string {
+	return "stock_ignore_rules"
+}

internal/models/models.go

@@ -13,6 +13,7 @@ func AllModels() []interface{} {
 		&User{},
 		&Category{},
 		&LotMetadata{},
+		&Project{},
 		&Configuration{},
 		&PriceOverride{},
 		&PricingAlert{},

internal/models/pricelist.go

@@ -4,12 +4,41 @@ import (
 	"time"
 )
 
+type PricelistSource string
+
+const (
+	PricelistSourceEstimate   PricelistSource = "estimate"
+	PricelistSourceWarehouse  PricelistSource = "warehouse"
+	PricelistSourceCompetitor PricelistSource = "competitor"
+)
+
+func (s PricelistSource) IsValid() bool {
+	switch s {
+	case PricelistSourceEstimate, PricelistSourceWarehouse, PricelistSourceCompetitor:
+		return true
+	default:
+		return false
+	}
+}
+
+func NormalizePricelistSource(source string) PricelistSource {
+	switch PricelistSource(source) {
+	case PricelistSourceWarehouse:
+		return PricelistSourceWarehouse
+	case PricelistSourceCompetitor:
+		return PricelistSourceCompetitor
+	default:
+		return PricelistSourceEstimate
+	}
+}
+
 // Pricelist represents a versioned snapshot of prices
 type Pricelist struct {
 	ID           uint       `gorm:"primaryKey" json:"id"`
-	Version      string     `gorm:"size:20;uniqueIndex;not null" json:"version"` // Format: YYYY-MM-DD-NNN
-	Notification string     `gorm:"size:500" json:"notification"`                // Notification shown in configurator
-	CreatedAt    time.Time  `json:"created_at"`
+	Source       string     `gorm:"size:20;not null;default:'estimate';uniqueIndex:idx_qt_pricelists_source_version,priority:1;index:idx_qt_pricelists_source_created_at,priority:1" json:"source"`
+	Version      string     `gorm:"size:20;not null;uniqueIndex:idx_qt_pricelists_source_version,priority:2" json:"version"` // Format: YYYY-MM-DD-NNN
+	Notification string     `gorm:"size:500" json:"notification"`                                                            // Notification shown in configurator
+	CreatedAt    time.Time  `gorm:"index:idx_qt_pricelists_source_created_at,priority:2,sort:desc" json:"created_at"`
 	CreatedBy    string     `gorm:"size:100" json:"created_by"`
 	IsActive     bool       `gorm:"default:true" json:"is_active"`
 	UsageCount   int        `gorm:"default:0" json:"usage_count"`
@@ -36,8 +65,10 @@ type PricelistItem struct {
 	MetaPrices       string   `gorm:"size:1000" json:"meta_prices,omitempty"`
 
 	// Virtual fields for display
-	LotDescription string `gorm:"-" json:"lot_description,omitempty"`
-	Category       string `gorm:"-" json:"category,omitempty"`
+	LotDescription string   `gorm:"-" json:"lot_description,omitempty"`
+	Category       string   `gorm:"-" json:"category,omitempty"`
+	AvailableQty   *float64 `gorm:"-" json:"available_qty,omitempty"`
+	Partnumbers    []string `gorm:"-" json:"partnumbers,omitempty"`
 }
 
 func (PricelistItem) TableName() string {
@@ -47,6 +78,7 @@ func (PricelistItem) TableName() string {
 // PricelistSummary is used for list views
 type PricelistSummary struct {
 	ID           uint       `json:"id"`
+	Source       string     `json:"source"`
 	Version      string     `json:"version"`
 	Notification string     `json:"notification"`
 	CreatedAt    time.Time  `json:"created_at"`

internal/models/project.go

@@ -0,0 +1,19 @@
+package models
+
+import "time"
+
+type Project struct {
+	ID            uint      `gorm:"primaryKey;autoIncrement" json:"id"`
+	UUID          string    `gorm:"size:36;uniqueIndex;not null" json:"uuid"`
+	OwnerUsername string    `gorm:"size:100;not null;index" json:"owner_username"`
+	Name          string    `gorm:"size:200;not null" json:"name"`
+	TrackerURL    string    `gorm:"size:500" json:"tracker_url"`
+	IsActive      bool      `gorm:"default:true;index" json:"is_active"`
+	IsSystem      bool      `gorm:"default:false;index" json:"is_system"`
+	CreatedAt     time.Time `gorm:"autoCreateTime" json:"created_at"`
+	UpdatedAt     time.Time `gorm:"autoUpdateTime" json:"updated_at"`
+}
+
+func (Project) TableName() string {
+	return "qt_projects"
+}

internal/models/sql_migrations.go

@@ -0,0 +1,227 @@
+package models
+
+import (
+	"bufio"
+	"errors"
+	"fmt"
+	"os"
+	"path/filepath"
+	"sort"
+	"strings"
+	"time"
+
+	mysqlDriver "github.com/go-sql-driver/mysql"
+	"gorm.io/gorm"
+)
+
+type SQLSchemaMigration struct {
+	ID        uint      `gorm:"primaryKey;autoIncrement"`
+	Filename  string    `gorm:"size:255;uniqueIndex;not null"`
+	AppliedAt time.Time `gorm:"autoCreateTime"`
+}
+
+func (SQLSchemaMigration) TableName() string {
+	return "qt_schema_migrations"
+}
+
+// NeedsSQLMigrations reports whether at least one SQL migration from migrationsDir
+// is not yet recorded in qt_schema_migrations.
+func NeedsSQLMigrations(db *gorm.DB, migrationsDir string) (bool, error) {
+	files, err := listSQLMigrationFiles(migrationsDir)
+	if err != nil {
+		return false, err
+	}
+	if len(files) == 0 {
+		return false, nil
+	}
+
+	// If tracking table does not exist yet, migrations are required.
+	if !db.Migrator().HasTable(&SQLSchemaMigration{}) {
+		return true, nil
+	}
+
+	var count int64
+	if err := db.Model(&SQLSchemaMigration{}).Where("filename IN ?", files).Count(&count).Error; err != nil {
+		return false, fmt.Errorf("check applied migrations: %w", err)
+	}
+
+	return count < int64(len(files)), nil
+}
+
+// RunSQLMigrations applies SQL files from migrationsDir once and records them in qt_schema_migrations.
+// Local SQLite-only scripts are skipped automatically.
+func RunSQLMigrations(db *gorm.DB, migrationsDir string) error {
+	if err := ensureSQLMigrationsTable(db); err != nil {
+		return fmt.Errorf("migrate qt_schema_migrations table: %w", err)
+	}
+
+	files, err := listSQLMigrationFiles(migrationsDir)
+	if err != nil {
+		return err
+	}
+
+	for _, filename := range files {
+		var count int64
+		if err := db.Model(&SQLSchemaMigration{}).Where("filename = ?", filename).Count(&count).Error; err != nil {
+			return fmt.Errorf("check migration %s: %w", filename, err)
+		}
+		if count > 0 {
+			continue
+		}
+
+		path := filepath.Join(migrationsDir, filename)
+		content, err := os.ReadFile(path)
+		if err != nil {
+			return fmt.Errorf("read migration %s: %w", filename, err)
+		}
+
+		statements := splitSQLStatements(string(content))
+		if len(statements) == 0 {
+			if err := db.Create(&SQLSchemaMigration{Filename: filename}).Error; err != nil {
+				return fmt.Errorf("record empty migration %s: %w", filename, err)
+			}
+			continue
+		}
+
+		if err := executeMigrationStatements(db, filename, statements); err != nil {
+			return err
+		}
+		if err := db.Create(&SQLSchemaMigration{Filename: filename}).Error; err != nil {
+			return fmt.Errorf("record migration %s: %w", filename, err)
+		}
+	}
+
+	return nil
+}
+
+// IsMigrationPermissionError returns true if err indicates insufficient privileges
+// to create/alter/read migration metadata or target schema objects.
+func IsMigrationPermissionError(err error) bool {
+	if err == nil {
+		return false
+	}
+
+	var mysqlErr *mysqlDriver.MySQLError
+	if errors.As(err, &mysqlErr) {
+		switch mysqlErr.Number {
+		case 1044, 1045, 1142, 1143, 1227:
+			return true
+		}
+	}
+
+	lower := strings.ToLower(err.Error())
+	patterns := []string{
+		"command denied to user",
+		"access denied for user",
+		"permission denied",
+		"insufficient privilege",
+		"sqlstate 42000",
+	}
+	for _, pattern := range patterns {
+		if strings.Contains(lower, pattern) {
+			return true
+		}
+	}
+	return false
+}
+
+func ensureSQLMigrationsTable(db *gorm.DB) error {
+	stmt := `
+CREATE TABLE IF NOT EXISTS qt_schema_migrations (
+	id BIGINT UNSIGNED AUTO_INCREMENT PRIMARY KEY,
+	filename VARCHAR(255) NOT NULL UNIQUE,
+	applied_at TIMESTAMP NOT NULL DEFAULT CURRENT_TIMESTAMP
+);`
+	return db.Exec(stmt).Error
+}
+
+func executeMigrationStatements(db *gorm.DB, filename string, statements []string) error {
+	for _, stmt := range statements {
+		if err := db.Exec(stmt).Error; err != nil {
+			if isIgnorableMigrationError(err.Error()) {
+				continue
+			}
+			return fmt.Errorf("exec migration %s statement %q: %w", filename, stmt, err)
+		}
+	}
+	return nil
+}
+
+func isSQLiteOnlyMigration(filename string) bool {
+	lower := strings.ToLower(filename)
+	return strings.Contains(lower, "local_")
+}
+
+func isIgnorableMigrationError(message string) bool {
+	lower := strings.ToLower(message)
+	ignorable := []string{
+		"duplicate column name",
+		"duplicate key name",
+		"already exists",
+		"can't create table",
+		"duplicate foreign key constraint name",
+		"errno 121",
+	}
+	for _, pattern := range ignorable {
+		if strings.Contains(lower, pattern) {
+			return true
+		}
+	}
+	return false
+}
+
+func splitSQLStatements(script string) []string {
+	scanner := bufio.NewScanner(strings.NewReader(script))
+	scanner.Buffer(make([]byte, 1024), 1024*1024)
+
+	lines := make([]string, 0, 128)
+	for scanner.Scan() {
+		line := strings.TrimSpace(scanner.Text())
+		if line == "" {
+			continue
+		}
+		if strings.HasPrefix(line, "--") {
+			continue
+		}
+		lines = append(lines, scanner.Text())
+	}
+
+	combined := strings.Join(lines, "\n")
+	raw := strings.Split(combined, ";")
+	stmts := make([]string, 0, len(raw))
+	for _, stmt := range raw {
+		trimmed := strings.TrimSpace(stmt)
+		if trimmed == "" {
+			continue
+		}
+		stmts = append(stmts, trimmed)
+	}
+	return stmts
+}
+
+func listSQLMigrationFiles(migrationsDir string) ([]string, error) {
+	entries, err := os.ReadDir(migrationsDir)
+	if err != nil {
+		if errors.Is(err, os.ErrNotExist) {
+			return nil, nil
+		}
+		return nil, fmt.Errorf("read migrations dir %s: %w", migrationsDir, err)
+	}
+
+	files := make([]string, 0, len(entries))
+	for _, entry := range entries {
+		if entry.IsDir() {
+			continue
+		}
+		name := entry.Name()
+		if !strings.HasSuffix(strings.ToLower(name), ".sql") {
+			continue
+		}
+		if isSQLiteOnlyMigration(name) {
+			continue
+		}
+		files = append(files, name)
+	}
+	sort.Strings(files)
+	return files, nil
+}

internal/repository/component.go

@@ -110,6 +110,10 @@ func (r *ComponentRepository) Update(component *models.LotMetadata) error {
 	return r.db.Save(component).Error
 }
 
+func (r *ComponentRepository) DB() *gorm.DB {
+	return r.db
+}
+
 func (r *ComponentRepository) Create(component *models.LotMetadata) error {
 	return r.db.Create(component).Error
 }

internal/repository/configuration.go

@@ -19,7 +19,7 @@ func (r *ConfigurationRepository) Create(config *models.Configuration) error {
 
 func (r *ConfigurationRepository) GetByID(id uint) (*models.Configuration, error) {
 	var config models.Configuration
-	err := r.db.Preload("User").First(&config, id).Error
+	err := r.db.First(&config, id).Error
 	if err != nil {
 		return nil, err
 	}
@@ -28,7 +28,7 @@ func (r *ConfigurationRepository) GetByID(id uint) (*models.Configuration, error
 
 func (r *ConfigurationRepository) GetByUUID(uuid string) (*models.Configuration, error) {
 	var config models.Configuration
-	err := r.db.Preload("User").Where("uuid = ?", uuid).First(&config).Error
+	err := r.db.Where("uuid = ?", uuid).First(&config).Error
 	if err != nil {
 		return nil, err
 	}
@@ -47,12 +47,11 @@ func (r *ConfigurationRepository) ListByUser(ownerUsername string, offset, limit
 	var configs []models.Configuration
 	var total int64
 
-	ownerScope := "owner_username = ? OR (COALESCE(owner_username, '') = '' AND user_id IN (SELECT id FROM qt_users WHERE username = ?))"
+	ownerScope := "owner_username = ?"
 
-	r.db.Model(&models.Configuration{}).Where(ownerScope, ownerUsername, ownerUsername).Count(&total)
+	r.db.Model(&models.Configuration{}).Where(ownerScope, ownerUsername).Count(&total)
 	err := r.db.
-		Preload("User").
-		Where(ownerScope, ownerUsername, ownerUsername).
+		Where(ownerScope, ownerUsername).
 		Order("created_at DESC").
 		Offset(offset).
 		Limit(limit).
@@ -67,7 +66,6 @@ func (r *ConfigurationRepository) ListTemplates(offset, limit int) ([]models.Con
 
 	r.db.Model(&models.Configuration{}).Where("is_template = ?", true).Count(&total)
 	err := r.db.
-		Preload("User").
 		Where("is_template = ?", true).
 		Order("created_at DESC").
 		Offset(offset).
@@ -84,7 +82,6 @@ func (r *ConfigurationRepository) ListAll(offset, limit int) ([]models.Configura
 
 	r.db.Model(&models.Configuration{}).Count(&total)
 	err := r.db.
-		Preload("User").
 		Order("created_at DESC").
 		Offset(offset).
 		Limit(limit).

internal/repository/pricelist.go

@@ -1,7 +1,9 @@
 package repository
 
 import (
+	"errors"
 	"fmt"
+	"strconv"
 	"strings"
 	"time"
 
@@ -19,13 +21,23 @@ func NewPricelistRepository(db *gorm.DB) *PricelistRepository {
 
 // List returns pricelists with pagination
 func (r *PricelistRepository) List(offset, limit int) ([]models.PricelistSummary, int64, error) {
+	return r.ListBySource("", offset, limit)
+}
+
+// ListBySource returns pricelists filtered by source when provided.
+func (r *PricelistRepository) ListBySource(source string, offset, limit int) ([]models.PricelistSummary, int64, error) {
+	query := r.db.Model(&models.Pricelist{})
+	if source != "" {
+		query = query.Where("source = ?", source)
+	}
+
 	var total int64
-	if err := r.db.Model(&models.Pricelist{}).Count(&total).Error; err != nil {
+	if err := query.Count(&total).Error; err != nil {
 		return nil, 0, fmt.Errorf("counting pricelists: %w", err)
 	}
 
 	var pricelists []models.Pricelist
-	if err := r.db.Order("created_at DESC").Offset(offset).Limit(limit).Find(&pricelists).Error; err != nil {
+	if err := query.Order("created_at DESC").Offset(offset).Limit(limit).Find(&pricelists).Error; err != nil {
 		return nil, 0, fmt.Errorf("listing pricelists: %w", err)
 	}
 
@@ -34,13 +46,23 @@ func (r *PricelistRepository) List(offset, limit int) ([]models.PricelistSummary
 
 // ListActive returns active pricelists with pagination.
 func (r *PricelistRepository) ListActive(offset, limit int) ([]models.PricelistSummary, int64, error) {
+	return r.ListActiveBySource("", offset, limit)
+}
+
+// ListActiveBySource returns active pricelists filtered by source when provided.
+func (r *PricelistRepository) ListActiveBySource(source string, offset, limit int) ([]models.PricelistSummary, int64, error) {
+	query := r.db.Model(&models.Pricelist{}).Where("is_active = ?", true)
+	if source != "" {
+		query = query.Where("source = ?", source)
+	}
+
 	var total int64
-	if err := r.db.Model(&models.Pricelist{}).Where("is_active = ?", true).Count(&total).Error; err != nil {
+	if err := query.Count(&total).Error; err != nil {
 		return nil, 0, fmt.Errorf("counting active pricelists: %w", err)
 	}
 
 	var pricelists []models.Pricelist
-	if err := r.db.Where("is_active = ?", true).Order("created_at DESC").Offset(offset).Limit(limit).Find(&pricelists).Error; err != nil {
+	if err := query.Order("created_at DESC").Offset(offset).Limit(limit).Find(&pricelists).Error; err != nil {
 		return nil, 0, fmt.Errorf("listing active pricelists: %w", err)
 	}
 
@@ -62,15 +84,17 @@ func (r *PricelistRepository) toSummaries(pricelists []models.Pricelist) []model
 	for i, pl := range pricelists {
 		var itemCount int64
 		r.db.Model(&models.PricelistItem{}).Where("pricelist_id = ?", pl.ID).Count(&itemCount)
+		usageCount, _ := r.CountUsage(pl.ID)
 
 		summaries[i] = models.PricelistSummary{
 			ID:           pl.ID,
+			Source:       pl.Source,
 			Version:      pl.Version,
 			Notification: pl.Notification,
 			CreatedAt:    pl.CreatedAt,
 			CreatedBy:    pl.CreatedBy,
 			IsActive:     pl.IsActive,
-			UsageCount:   pl.UsageCount,
+			UsageCount:   int(usageCount),
 			ExpiresAt:    pl.ExpiresAt,
 			ItemCount:    itemCount,
 		}
@@ -90,14 +114,22 @@ func (r *PricelistRepository) GetByID(id uint) (*models.Pricelist, error) {
 	var itemCount int64
 	r.db.Model(&models.PricelistItem{}).Where("pricelist_id = ?", id).Count(&itemCount)
 	pricelist.ItemCount = int(itemCount)
+	if usageCount, err := r.CountUsage(id); err == nil {
+		pricelist.UsageCount = int(usageCount)
+	}
 
 	return &pricelist, nil
 }
 
 // GetByVersion returns a pricelist by version string
 func (r *PricelistRepository) GetByVersion(version string) (*models.Pricelist, error) {
+	return r.GetBySourceAndVersion(string(models.PricelistSourceEstimate), version)
+}
+
+// GetBySourceAndVersion returns a pricelist by source/version.
+func (r *PricelistRepository) GetBySourceAndVersion(source, version string) (*models.Pricelist, error) {
 	var pricelist models.Pricelist
-	if err := r.db.Where("version = ?", version).First(&pricelist).Error; err != nil {
+	if err := r.db.Where("source = ? AND version = ?", source, version).First(&pricelist).Error; err != nil {
 		return nil, fmt.Errorf("getting pricelist by version: %w", err)
 	}
 	return &pricelist, nil
@@ -105,8 +137,13 @@ func (r *PricelistRepository) GetByVersion(version string) (*models.Pricelist, e
 
 // GetLatestActive returns the most recent active pricelist
 func (r *PricelistRepository) GetLatestActive() (*models.Pricelist, error) {
+	return r.GetLatestActiveBySource(string(models.PricelistSourceEstimate))
+}
+
+// GetLatestActiveBySource returns the most recent active pricelist by source.
+func (r *PricelistRepository) GetLatestActiveBySource(source string) (*models.Pricelist, error) {
 	var pricelist models.Pricelist
-	if err := r.db.Where("is_active = ?", true).Order("created_at DESC").First(&pricelist).Error; err != nil {
+	if err := r.db.Where("is_active = ? AND source = ?", true, source).Order("created_at DESC").First(&pricelist).Error; err != nil {
 		return nil, fmt.Errorf("getting latest pricelist: %w", err)
 	}
 	return &pricelist, nil
@@ -130,13 +167,13 @@ func (r *PricelistRepository) Update(pricelist *models.Pricelist) error {
 
 // Delete deletes a pricelist if usage_count is 0
 func (r *PricelistRepository) Delete(id uint) error {
-	pricelist, err := r.GetByID(id)
+	usageCount, err := r.CountUsage(id)
 	if err != nil {
 		return err
 	}
 
-	if pricelist.UsageCount > 0 {
-		return fmt.Errorf("cannot delete pricelist with usage_count > 0 (current: %d)", pricelist.UsageCount)
+	if usageCount > 0 {
+		return fmt.Errorf("cannot delete pricelist with usage_count > 0 (current: %d)", usageCount)
 	}
 
 	// Delete items first
@@ -203,21 +240,159 @@ func (r *PricelistRepository) GetItems(pricelistID uint, offset, limit int, sear
 		}
 	}
 
+	var pl models.Pricelist
+	if err := r.db.Select("source").Where("id = ?", pricelistID).First(&pl).Error; err == nil && pl.Source == string(models.PricelistSourceWarehouse) {
+		if err := r.enrichWarehouseItems(items); err != nil {
+			return nil, 0, fmt.Errorf("enriching warehouse items: %w", err)
+		}
+	}
+
 	return items, total, nil
 }
 
+func (r *PricelistRepository) enrichWarehouseItems(items []models.PricelistItem) error {
+	if len(items) == 0 {
+		return nil
+	}
+	lots := make([]string, 0, len(items))
+	seen := make(map[string]struct{}, len(items))
+	for _, item := range items {
+		lot := strings.TrimSpace(item.LotName)
+		if lot == "" {
+			continue
+		}
+		if _, ok := seen[lot]; ok {
+			continue
+		}
+		seen[lot] = struct{}{}
+		lots = append(lots, lot)
+	}
+	if len(lots) == 0 {
+		return nil
+	}
+
+	type lotQty struct {
+		Lot string
+		Qty float64
+	}
+	var qtyRows []lotQty
+	if err := r.db.Model(&models.StockLog{}).
+		Select("lot, COALESCE(SUM(qty), 0) AS qty").
+		Where("lot IN ?", lots).
+		Group("lot").
+		Scan(&qtyRows).Error; err != nil {
+		return err
+	}
+	qtyByLot := make(map[string]float64, len(qtyRows))
+	for _, row := range qtyRows {
+		qtyByLot[row.Lot] = row.Qty
+	}
+
+	var mappings []models.LotPartnumber
+	if err := r.db.Where("lot_name IN ? AND TRIM(lot_name) <> ''", lots).
+		Order("partnumber ASC").
+		Find(&mappings).Error; err != nil {
+		return err
+	}
+	partnumbersByLot := make(map[string][]string, len(lots))
+	seenPair := make(map[string]struct{}, len(mappings))
+	for _, m := range mappings {
+		lot := strings.TrimSpace(m.LotName)
+		pn := strings.TrimSpace(m.Partnumber)
+		if lot == "" || pn == "" {
+			continue
+		}
+		key := lot + "\x00" + strings.ToLower(pn)
+		if _, ok := seenPair[key]; ok {
+			continue
+		}
+		seenPair[key] = struct{}{}
+		partnumbersByLot[lot] = append(partnumbersByLot[lot], pn)
+	}
+
+	for i := range items {
+		if qty, ok := qtyByLot[items[i].LotName]; ok {
+			q := qty
+			items[i].AvailableQty = &q
+		}
+		items[i].Partnumbers = partnumbersByLot[items[i].LotName]
+	}
+	return nil
+}
+
+// GetPriceForLot returns item price for a lot within a pricelist.
+func (r *PricelistRepository) GetPriceForLot(pricelistID uint, lotName string) (float64, error) {
+	var item models.PricelistItem
+	if err := r.db.Where("pricelist_id = ? AND lot_name = ?", pricelistID, lotName).First(&item).Error; err != nil {
+		return 0, err
+	}
+	return item.Price, nil
+}
+
+// SetActive toggles active flag on a pricelist.
+func (r *PricelistRepository) SetActive(id uint, isActive bool) error {
+	return r.db.Model(&models.Pricelist{}).Where("id = ?", id).Update("is_active", isActive).Error
+}
+
 // GenerateVersion generates a new version string in format YYYY-MM-DD-NNN
 func (r *PricelistRepository) GenerateVersion() (string, error) {
-	today := time.Now().Format("2006-01-02")
+	return r.GenerateVersionBySource(string(models.PricelistSourceEstimate))
+}
 
-	var count int64
-	if err := r.db.Model(&models.Pricelist{}).
-		Where("version LIKE ?", today+"%").
-		Count(&count).Error; err != nil {
-		return "", fmt.Errorf("counting today's pricelists: %w", err)
+// GenerateVersionBySource generates a new version string in format YYYY-MM-DD-NNN scoped by source.
+func (r *PricelistRepository) GenerateVersionBySource(source string) (string, error) {
+	today := time.Now().Format("2006-01-02")
+	prefix := versionPrefixBySource(source)
+
+	var last models.Pricelist
+	err := r.db.Model(&models.Pricelist{}).
+		Select("version").
+		Where("source = ? AND version LIKE ?", source, prefix+"-"+today+"-%").
+		Order("version DESC").
+		Limit(1).
+		Take(&last).Error
+	if err != nil {
+		if errors.Is(err, gorm.ErrRecordNotFound) {
+			return fmt.Sprintf("%s-%s-001", prefix, today), nil
+		}
+		return "", fmt.Errorf("loading latest today's pricelist version: %w", err)
 	}
 
-	return fmt.Sprintf("%s-%03d", today, count+1), nil
+	parts := strings.Split(last.Version, "-")
+	if len(parts) < 4 {
+		return "", fmt.Errorf("invalid pricelist version format: %s", last.Version)
+	}
+
+	n, err := strconv.Atoi(parts[len(parts)-1])
+	if err != nil {
+		return "", fmt.Errorf("parsing pricelist sequence %q: %w", parts[len(parts)-1], err)
+	}
+
+	return fmt.Sprintf("%s-%s-%03d", prefix, today, n+1), nil
+}
+
+func versionPrefixBySource(source string) string {
+	switch models.NormalizePricelistSource(source) {
+	case models.PricelistSourceWarehouse:
+		return "S"
+	case models.PricelistSourceCompetitor:
+		return "B"
+	default:
+		return "E"
+	}
+}
+
+// GetPriceForLotBySource returns item price for a lot from latest active pricelist of source.
+func (r *PricelistRepository) GetPriceForLotBySource(source, lotName string) (float64, uint, error) {
+	latest, err := r.GetLatestActiveBySource(source)
+	if err != nil {
+		return 0, 0, err
+	}
+	price, err := r.GetPriceForLot(latest.ID, lotName)
+	if err != nil {
+		return 0, 0, err
+	}
+	return price, latest.ID, nil
 }
 
 // CanWrite checks if the current database user has INSERT permission on qt_pricelists
@@ -276,6 +451,15 @@ func (r *PricelistRepository) DecrementUsageCount(id uint) error {
 		UpdateColumn("usage_count", gorm.Expr("GREATEST(usage_count - 1, 0)")).Error
 }
 
+// CountUsage returns number of configurations referencing pricelist.
+func (r *PricelistRepository) CountUsage(id uint) (int64, error) {
+	var count int64
+	if err := r.db.Table("qt_configurations").Where("pricelist_id = ?", id).Count(&count).Error; err != nil {
+		return 0, fmt.Errorf("counting configurations for pricelist %d: %w", id, err)
+	}
+	return count, nil
+}
+
 // GetExpiredUnused returns pricelists that are expired and unused
 func (r *PricelistRepository) GetExpiredUnused() ([]models.Pricelist, error) {
 	var pricelists []models.Pricelist

internal/repository/pricelist_test.go

@@ -0,0 +1,89 @@
+package repository
+
+import (
+	"fmt"
+	"testing"
+	"time"
+
+	"git.mchus.pro/mchus/quoteforge/internal/models"
+	"github.com/glebarez/sqlite"
+	"gorm.io/gorm"
+)
+
+func TestGenerateVersion_FirstOfDay(t *testing.T) {
+	repo := newTestPricelistRepository(t)
+
+	version, err := repo.GenerateVersionBySource(string(models.PricelistSourceEstimate))
+	if err != nil {
+		t.Fatalf("GenerateVersionBySource returned error: %v", err)
+	}
+
+	today := time.Now().Format("2006-01-02")
+	want := fmt.Sprintf("E-%s-001", today)
+	if version != want {
+		t.Fatalf("expected %s, got %s", want, version)
+	}
+}
+
+func TestGenerateVersion_UsesMaxSuffixNotCount(t *testing.T) {
+	repo := newTestPricelistRepository(t)
+	today := time.Now().Format("2006-01-02")
+
+	seed := []models.Pricelist{
+		{Source: string(models.PricelistSourceEstimate), Version: fmt.Sprintf("E-%s-001", today), CreatedBy: "test", IsActive: true},
+		{Source: string(models.PricelistSourceEstimate), Version: fmt.Sprintf("E-%s-003", today), CreatedBy: "test", IsActive: true},
+	}
+	for _, pl := range seed {
+		if err := repo.Create(&pl); err != nil {
+			t.Fatalf("seed insert failed: %v", err)
+		}
+	}
+
+	version, err := repo.GenerateVersionBySource(string(models.PricelistSourceEstimate))
+	if err != nil {
+		t.Fatalf("GenerateVersionBySource returned error: %v", err)
+	}
+
+	want := fmt.Sprintf("E-%s-004", today)
+	if version != want {
+		t.Fatalf("expected %s, got %s", want, version)
+	}
+}
+
+func TestGenerateVersion_IsolatedBySource(t *testing.T) {
+	repo := newTestPricelistRepository(t)
+	today := time.Now().Format("2006-01-02")
+
+	seed := []models.Pricelist{
+		{Source: string(models.PricelistSourceEstimate), Version: fmt.Sprintf("E-%s-009", today), CreatedBy: "test", IsActive: true},
+		{Source: string(models.PricelistSourceWarehouse), Version: fmt.Sprintf("S-%s-002", today), CreatedBy: "test", IsActive: true},
+	}
+	for _, pl := range seed {
+		if err := repo.Create(&pl); err != nil {
+			t.Fatalf("seed insert failed: %v", err)
+		}
+	}
+
+	version, err := repo.GenerateVersionBySource(string(models.PricelistSourceWarehouse))
+	if err != nil {
+		t.Fatalf("GenerateVersionBySource returned error: %v", err)
+	}
+
+	want := fmt.Sprintf("S-%s-003", today)
+	if version != want {
+		t.Fatalf("expected %s, got %s", want, version)
+	}
+}
+
+func newTestPricelistRepository(t *testing.T) *PricelistRepository {
+	t.Helper()
+
+	db, err := gorm.Open(sqlite.Open("file::memory:?cache=shared"), &gorm.Config{})
+	if err != nil {
+		t.Fatalf("open sqlite: %v", err)
+	}
+	if err := db.AutoMigrate(&models.Pricelist{}); err != nil {
+		t.Fatalf("migrate: %v", err)
+	}
+	return NewPricelistRepository(db)
+}

internal/repository/project.go

@@ -0,0 +1,194 @@
+package repository
+
+import (
+	"git.mchus.pro/mchus/quoteforge/internal/models"
+	"gorm.io/gorm"
+	"gorm.io/gorm/clause"
+)
+
+type ProjectRepository struct {
+	db *gorm.DB
+}
+
+func NewProjectRepository(db *gorm.DB) *ProjectRepository {
+	return &ProjectRepository{db: db}
+}
+
+func (r *ProjectRepository) Create(project *models.Project) error {
+	return r.db.Create(project).Error
+}
+
+func (r *ProjectRepository) Update(project *models.Project) error {
+	return r.db.Save(project).Error
+}
+
+func (r *ProjectRepository) UpsertByUUID(project *models.Project) error {
+	if err := r.db.Clauses(clause.OnConflict{
+		Columns: []clause.Column{{Name: "uuid"}},
+		DoUpdates: clause.AssignmentColumns([]string{
+			"owner_username",
+			"name",
+			"tracker_url",
+			"is_active",
+			"is_system",
+			"updated_at",
+		}),
+	}).Create(project).Error; err != nil {
+		return err
+	}
+
+	// Ensure caller always gets canonical server ID.
+	var persisted models.Project
+	if err := r.db.Where("uuid = ?", project.UUID).First(&persisted).Error; err != nil {
+		return err
+	}
+	project.ID = persisted.ID
+	return nil
+}
+
+func (r *ProjectRepository) GetByUUID(uuid string) (*models.Project, error) {
+	var project models.Project
+	if err := r.db.Where("uuid = ?", uuid).First(&project).Error; err != nil {
+		return nil, err
+	}
+	return &project, nil
+}
+
+func (r *ProjectRepository) GetSystemByOwner(ownerUsername string) (*models.Project, error) {
+	var project models.Project
+	if err := r.db.Where("owner_username = ? AND is_system = ? AND name = ?", ownerUsername, true, "Без проекта").
+		First(&project).Error; err != nil {
+		return nil, err
+	}
+	return &project, nil
+}
+
+func (r *ProjectRepository) List(offset, limit int, includeArchived bool) ([]models.Project, int64, error) {
+	var projects []models.Project
+	var total int64
+
+	query := r.db.Model(&models.Project{})
+	if !includeArchived {
+		query = query.Where("is_active = ?", true)
+	}
+
+	if err := query.Count(&total).Error; err != nil {
+		return nil, 0, err
+	}
+
+	if err := query.Order("created_at DESC").Offset(offset).Limit(limit).Find(&projects).Error; err != nil {
+		return nil, 0, err
+	}
+
+	return projects, total, nil
+}
+
+func (r *ProjectRepository) ListByOwner(ownerUsername string, includeArchived bool) ([]models.Project, error) {
+	var projects []models.Project
+
+	query := r.db.Where("owner_username = ?", ownerUsername)
+	if !includeArchived {
+		query = query.Where("is_active = ?", true)
+	}
+
+	if err := query.Order("created_at DESC").Find(&projects).Error; err != nil {
+		return nil, err
+	}
+	return projects, nil
+}
+
+func (r *ProjectRepository) Archive(uuid string) error {
+	return r.db.Model(&models.Project{}).Where("uuid = ?", uuid).Update("is_active", false).Error
+}
+
+func (r *ProjectRepository) Reactivate(uuid string) error {
+	return r.db.Model(&models.Project{}).Where("uuid = ?", uuid).Update("is_active", true).Error
+}
+
+// PurgeEmptyNamelessProjects removes service-trash projects that have no configurations attached:
+// 1) projects with empty names;
+// 2) duplicate "Без проекта" rows without configurations (case-insensitive, trimmed).
+func (r *ProjectRepository) PurgeEmptyNamelessProjects() (int64, error) {
+	tx := r.db.Exec(`
+DELETE p
+FROM qt_projects p
+WHERE (
+      TRIM(COALESCE(p.name, '')) = ''
+      OR LOWER(TRIM(COALESCE(p.name, ''))) = LOWER('Без проекта')
+)
+  AND NOT EXISTS (
+      SELECT 1
+      FROM qt_configurations c
+      WHERE c.project_uuid = p.uuid
+  )`)
+	return tx.RowsAffected, tx.Error
+}
+
+// EnsureSystemProjectsAndBackfillConfigurations ensures there is a single shared system project
+// named "Без проекта", reassigns orphan/legacy links to it and removes duplicates.
+func (r *ProjectRepository) EnsureSystemProjectsAndBackfillConfigurations() error {
+	return r.db.Transaction(func(tx *gorm.DB) error {
+		type row struct {
+			UUID string `gorm:"column:uuid"`
+		}
+		var canonical row
+		err := tx.Raw(`
+SELECT uuid
+FROM qt_projects
+WHERE LOWER(TRIM(COALESCE(name, ''))) = LOWER('Без проекта')
+  AND is_system = TRUE
+ORDER BY CASE WHEN TRIM(COALESCE(owner_username, '')) = '' THEN 0 ELSE 1 END, created_at ASC, id ASC
+LIMIT 1`).Scan(&canonical).Error
+		if err != nil {
+			return err
+		}
+		if canonical.UUID == "" {
+			if err := tx.Exec(`
+INSERT INTO qt_projects (uuid, owner_username, name, is_active, is_system, created_at, updated_at)
+VALUES (UUID(), '', 'Без проекта', TRUE, TRUE, NOW(), NOW())`).Error; err != nil {
+				return err
+			}
+			if err := tx.Raw(`
+SELECT uuid
+FROM qt_projects
+WHERE LOWER(TRIM(COALESCE(name, ''))) = LOWER('Без проекта')
+ORDER BY created_at DESC, id DESC
+LIMIT 1`).Scan(&canonical).Error; err != nil {
+				return err
+			}
+			if canonical.UUID == "" {
+				return gorm.ErrRecordNotFound
+			}
+		}
+
+		if err := tx.Exec(`
+UPDATE qt_projects
+SET name = 'Без проекта',
+    is_active = TRUE,
+    is_system = TRUE
+WHERE uuid = ?`, canonical.UUID).Error; err != nil {
+			return err
+		}
+
+		if err := tx.Exec(`
+UPDATE qt_configurations
+SET project_uuid = ?
+WHERE project_uuid IS NULL OR project_uuid = ''`, canonical.UUID).Error; err != nil {
+			return err
+		}
+
+		if err := tx.Exec(`
+UPDATE qt_configurations c
+JOIN qt_projects p ON p.uuid = c.project_uuid
+SET c.project_uuid = ?
+WHERE LOWER(TRIM(COALESCE(p.name, ''))) = LOWER('Без проекта')
+  AND p.uuid <> ?`, canonical.UUID, canonical.UUID).Error; err != nil {
+			return err
+		}
+
+		return tx.Exec(`
+DELETE FROM qt_projects
+WHERE LOWER(TRIM(COALESCE(name, ''))) = LOWER('Без проекта')
+  AND uuid <> ?`, canonical.UUID).Error
+	})
+}

internal/services/configuration.go

@@ -22,18 +22,24 @@ type ConfigurationGetter interface {
 
 type ConfigurationService struct {
 	configRepo    *repository.ConfigurationRepository
+	projectRepo   *repository.ProjectRepository
 	componentRepo *repository.ComponentRepository
+	pricelistRepo *repository.PricelistRepository
 	quoteService  *QuoteService
 }
 
 func NewConfigurationService(
 	configRepo *repository.ConfigurationRepository,
+	projectRepo *repository.ProjectRepository,
 	componentRepo *repository.ComponentRepository,
+	pricelistRepo *repository.PricelistRepository,
 	quoteService *QuoteService,
 ) *ConfigurationService {
 	return &ConfigurationService{
 		configRepo:    configRepo,
+		projectRepo:   projectRepo,
 		componentRepo: componentRepo,
+		pricelistRepo: pricelistRepo,
 		quoteService:  quoteService,
 	}
 }
@@ -41,13 +47,24 @@ func NewConfigurationService(
 type CreateConfigRequest struct {
 	Name        string             `json:"name"`
 	Items       models.ConfigItems `json:"items"`
+	ProjectUUID *string            `json:"project_uuid,omitempty"`
 	CustomPrice *float64           `json:"custom_price"`
 	Notes       string             `json:"notes"`
 	IsTemplate  bool               `json:"is_template"`
 	ServerCount int                `json:"server_count"`
+	PricelistID *uint              `json:"pricelist_id,omitempty"`
 }
 
 func (s *ConfigurationService) Create(ownerUsername string, req *CreateConfigRequest) (*models.Configuration, error) {
+	projectUUID, err := s.resolveProjectUUID(ownerUsername, req.ProjectUUID)
+	if err != nil {
+		return nil, err
+	}
+	pricelistID, err := s.resolvePricelistID(req.PricelistID)
+	if err != nil {
+		return nil, err
+	}
+
 	total := req.Items.Total()
 
 	// If server count is greater than 1, multiply the total by server count
@@ -58,6 +75,7 @@ func (s *ConfigurationService) Create(ownerUsername string, req *CreateConfigReq
 	config := &models.Configuration{
 		UUID:          uuid.New().String(),
 		OwnerUsername: ownerUsername,
+		ProjectUUID:   projectUUID,
 		Name:          req.Name,
 		Items:         req.Items,
 		TotalPrice:    &total,
@@ -65,6 +83,7 @@ func (s *ConfigurationService) Create(ownerUsername string, req *CreateConfigReq
 		Notes:         req.Notes,
 		IsTemplate:    req.IsTemplate,
 		ServerCount:   req.ServerCount,
+		PricelistID:   pricelistID,
 	}
 
 	if err := s.configRepo.Create(config); err != nil {
@@ -101,6 +120,15 @@ func (s *ConfigurationService) Update(uuid string, ownerUsername string, req *Cr
 		return nil, ErrConfigForbidden
 	}
 
+	projectUUID, err := s.resolveProjectUUID(ownerUsername, req.ProjectUUID)
+	if err != nil {
+		return nil, err
+	}
+	pricelistID, err := s.resolvePricelistID(req.PricelistID)
+	if err != nil {
+		return nil, err
+	}
+
 	total := req.Items.Total()
 
 	// If server count is greater than 1, multiply the total by server count
@@ -109,12 +137,14 @@ func (s *ConfigurationService) Update(uuid string, ownerUsername string, req *Cr
 	}
 
 	config.Name = req.Name
+	config.ProjectUUID = projectUUID
 	config.Items = req.Items
 	config.TotalPrice = &total
 	config.CustomPrice = req.CustomPrice
 	config.Notes = req.Notes
 	config.IsTemplate = req.IsTemplate
 	config.ServerCount = req.ServerCount
+	config.PricelistID = pricelistID
 
 	if err := s.configRepo.Update(config); err != nil {
 		return nil, err
@@ -156,10 +186,21 @@ func (s *ConfigurationService) Rename(uuid string, ownerUsername string, newName
 }
 
 func (s *ConfigurationService) Clone(configUUID string, ownerUsername string, newName string) (*models.Configuration, error) {
+	return s.CloneToProject(configUUID, ownerUsername, newName, nil)
+}
+
+func (s *ConfigurationService) CloneToProject(configUUID string, ownerUsername string, newName string, projectUUID *string) (*models.Configuration, error) {
 	original, err := s.GetByUUID(configUUID, ownerUsername)
 	if err != nil {
 		return nil, err
 	}
+	resolvedProjectUUID := original.ProjectUUID
+	if projectUUID != nil {
+		resolvedProjectUUID, err = s.resolveProjectUUID(ownerUsername, projectUUID)
+		if err != nil {
+			return nil, err
+		}
+	}
 
 	// Create copy with new UUID and name
 	total := original.Items.Total()
@@ -172,6 +213,7 @@ func (s *ConfigurationService) Clone(configUUID string, ownerUsername string, ne
 	clone := &models.Configuration{
 		UUID:          uuid.New().String(),
 		OwnerUsername: ownerUsername,
+		ProjectUUID:   resolvedProjectUUID,
 		Name:          newName,
 		Items:         original.Items,
 		TotalPrice:    &total,
@@ -179,6 +221,7 @@ func (s *ConfigurationService) Clone(configUUID string, ownerUsername string, ne
 		Notes:         original.Notes,
 		IsTemplate:    false, // Clone is never a template
 		ServerCount:   original.ServerCount,
+		PricelistID:   original.PricelistID,
 	}
 
 	if err := s.configRepo.Create(clone); err != nil {
@@ -229,18 +272,29 @@ func (s *ConfigurationService) UpdateNoAuth(uuid string, req *CreateConfigReques
 		return nil, ErrConfigNotFound
 	}
 
+	projectUUID, err := s.resolveProjectUUID(config.OwnerUsername, req.ProjectUUID)
+	if err != nil {
+		return nil, err
+	}
+	pricelistID, err := s.resolvePricelistID(req.PricelistID)
+	if err != nil {
+		return nil, err
+	}
+
 	total := req.Items.Total()
 	if req.ServerCount > 1 {
 		total *= float64(req.ServerCount)
 	}
 
 	config.Name = req.Name
+	config.ProjectUUID = projectUUID
 	config.Items = req.Items
 	config.TotalPrice = &total
 	config.CustomPrice = req.CustomPrice
 	config.Notes = req.Notes
 	config.IsTemplate = req.IsTemplate
 	config.ServerCount = req.ServerCount
+	config.PricelistID = pricelistID
 
 	if err := s.configRepo.Update(config); err != nil {
 		return nil, err
@@ -275,10 +329,21 @@ func (s *ConfigurationService) RenameNoAuth(uuid string, newName string) (*model
 
 // CloneNoAuth clones configuration without ownership check
 func (s *ConfigurationService) CloneNoAuth(configUUID string, newName string, ownerUsername string) (*models.Configuration, error) {
+	return s.CloneNoAuthToProject(configUUID, newName, ownerUsername, nil)
+}
+
+func (s *ConfigurationService) CloneNoAuthToProject(configUUID string, newName string, ownerUsername string, projectUUID *string) (*models.Configuration, error) {
 	original, err := s.configRepo.GetByUUID(configUUID)
 	if err != nil {
 		return nil, ErrConfigNotFound
 	}
+	resolvedProjectUUID := original.ProjectUUID
+	if projectUUID != nil {
+		resolvedProjectUUID, err = s.resolveProjectUUID(ownerUsername, projectUUID)
+		if err != nil {
+			return nil, err
+		}
+	}
 
 	total := original.Items.Total()
 	if original.ServerCount > 1 {
@@ -288,6 +353,7 @@ func (s *ConfigurationService) CloneNoAuth(configUUID string, newName string, ow
 	clone := &models.Configuration{
 		UUID:          uuid.New().String(),
 		OwnerUsername: ownerUsername,
+		ProjectUUID:   resolvedProjectUUID,
 		Name:          newName,
 		Items:         original.Items,
 		TotalPrice:    &total,
@@ -295,6 +361,7 @@ func (s *ConfigurationService) CloneNoAuth(configUUID string, newName string, ow
 		Notes:         original.Notes,
 		IsTemplate:    false,
 		ServerCount:   original.ServerCount,
+		PricelistID:   original.PricelistID,
 	}
 
 	if err := s.configRepo.Create(clone); err != nil {
@@ -304,6 +371,43 @@ func (s *ConfigurationService) CloneNoAuth(configUUID string, newName string, ow
 	return clone, nil
 }
 
+func (s *ConfigurationService) resolveProjectUUID(ownerUsername string, projectUUID *string) (*string, error) {
+	_ = ownerUsername
+	if s.projectRepo == nil {
+		return projectUUID, nil
+	}
+	if projectUUID == nil || *projectUUID == "" {
+		return nil, nil
+	}
+
+	project, err := s.projectRepo.GetByUUID(*projectUUID)
+	if err != nil {
+		return nil, ErrProjectNotFound
+	}
+	if !project.IsActive {
+		return nil, errors.New("project is archived")
+	}
+
+	return &project.UUID, nil
+}
+
+func (s *ConfigurationService) resolvePricelistID(pricelistID *uint) (*uint, error) {
+	if s.pricelistRepo == nil {
+		return pricelistID, nil
+	}
+	if pricelistID != nil && *pricelistID > 0 {
+		if _, err := s.pricelistRepo.GetByID(*pricelistID); err != nil {
+			return nil, err
+		}
+		return pricelistID, nil
+	}
+	latest, err := s.pricelistRepo.GetLatestActive()
+	if err != nil {
+		return nil, nil
+	}
+	return &latest.ID, nil
+}
+
 // RefreshPricesNoAuth refreshes prices without ownership check
 func (s *ConfigurationService) RefreshPricesNoAuth(uuid string) (*models.Configuration, error) {
 	config, err := s.configRepo.GetByUUID(uuid)
@@ -311,8 +415,30 @@ func (s *ConfigurationService) RefreshPricesNoAuth(uuid string) (*models.Configu
 		return nil, ErrConfigNotFound
 	}
 
+	var latestPricelistID *uint
+	if s.pricelistRepo != nil {
+		if pl, err := s.pricelistRepo.GetLatestActive(); err == nil {
+			latestPricelistID = &pl.ID
+		}
+	}
+
 	updatedItems := make(models.ConfigItems, len(config.Items))
 	for i, item := range config.Items {
+		if latestPricelistID != nil {
+			if price, err := s.pricelistRepo.GetPriceForLot(*latestPricelistID, item.LotName); err == nil && price > 0 {
+				updatedItems[i] = models.ConfigItem{
+					LotName:   item.LotName,
+					Quantity:  item.Quantity,
+					UnitPrice: price,
+				}
+				continue
+			}
+		}
+
+		if s.componentRepo == nil {
+			updatedItems[i] = item
+			continue
+		}
 		metadata, err := s.componentRepo.GetByLotName(item.LotName)
 		if err != nil || metadata.CurrentPrice == nil {
 			updatedItems[i] = item
@@ -333,6 +459,9 @@ func (s *ConfigurationService) RefreshPricesNoAuth(uuid string) (*models.Configu
 	}
 
 	config.TotalPrice = &total
+	if latestPricelistID != nil {
+		config.PricelistID = latestPricelistID
+	}
 	now := time.Now()
 	config.PriceUpdatedAt = &now
 
@@ -366,10 +495,32 @@ func (s *ConfigurationService) RefreshPrices(uuid string, ownerUsername string)
 		return nil, ErrConfigForbidden
 	}
 
+	var latestPricelistID *uint
+	if s.pricelistRepo != nil {
+		if pl, err := s.pricelistRepo.GetLatestActive(); err == nil {
+			latestPricelistID = &pl.ID
+		}
+	}
+
 	// Update prices for all items
 	updatedItems := make(models.ConfigItems, len(config.Items))
 	for i, item := range config.Items {
+		if latestPricelistID != nil {
+			if price, err := s.pricelistRepo.GetPriceForLot(*latestPricelistID, item.LotName); err == nil && price > 0 {
+				updatedItems[i] = models.ConfigItem{
+					LotName:   item.LotName,
+					Quantity:  item.Quantity,
+					UnitPrice: price,
+				}
+				continue
+			}
+		}
+
 		// Get current component price
+		if s.componentRepo == nil {
+			updatedItems[i] = item
+			continue
+		}
 		metadata, err := s.componentRepo.GetByLotName(item.LotName)
 		if err != nil || metadata.CurrentPrice == nil {
 			// Keep original item if component not found or no price available
@@ -395,6 +546,9 @@ func (s *ConfigurationService) RefreshPrices(uuid string, ownerUsername string)
 	}
 
 	config.TotalPrice = &total
+	if latestPricelistID != nil {
+		config.PricelistID = latestPricelistID
+	}
 
 	// Set price update timestamp
 	now := time.Now()

internal/services/local_configuration_versioning_test.go

@@ -0,0 +1,399 @@
+package services
+
+import (
+	"encoding/json"
+	"errors"
+	"fmt"
+	"path/filepath"
+	"strings"
+	"sync"
+	"testing"
+	"time"
+
+	"git.mchus.pro/mchus/quoteforge/internal/localdb"
+	"git.mchus.pro/mchus/quoteforge/internal/models"
+	syncsvc "git.mchus.pro/mchus/quoteforge/internal/services/sync"
+)
+
+func TestSaveCreatesNewVersionAndUpdatesCurrentPointer(t *testing.T) {
+	service, local := newLocalConfigServiceForTest(t)
+
+	created, err := service.Create("tester", &CreateConfigRequest{
+		Name:        "v1",
+		Items:       models.ConfigItems{{LotName: "CPU_A", Quantity: 1, UnitPrice: 1000}},
+		ServerCount: 1,
+	})
+	if err != nil {
+		t.Fatalf("create config: %v", err)
+	}
+
+	if _, err := service.RenameNoAuth(created.UUID, "v2"); err != nil {
+		t.Fatalf("rename config: %v", err)
+	}
+
+	versions := loadVersions(t, local, created.UUID)
+	if len(versions) != 2 {
+		t.Fatalf("expected 2 versions, got %d", len(versions))
+	}
+	if versions[0].VersionNo != 1 || versions[1].VersionNo != 2 {
+		t.Fatalf("expected version_no [1,2], got [%d,%d]", versions[0].VersionNo, versions[1].VersionNo)
+	}
+
+	cfg, err := local.GetConfigurationByUUID(created.UUID)
+	if err != nil {
+		t.Fatalf("load local config: %v", err)
+	}
+	if cfg.CurrentVersionID == nil || *cfg.CurrentVersionID != versions[1].ID {
+		t.Fatalf("current_version_id should point to v2")
+	}
+}
+
+func TestRollbackCreatesNewVersionWithTargetData(t *testing.T) {
+	service, local := newLocalConfigServiceForTest(t)
+
+	created, err := service.Create("tester", &CreateConfigRequest{
+		Name:        "base",
+		Items:       models.ConfigItems{{LotName: "RAM_A", Quantity: 2, UnitPrice: 100}},
+		ServerCount: 1,
+	})
+	if err != nil {
+		t.Fatalf("create config: %v", err)
+	}
+
+	if _, err := service.RenameNoAuth(created.UUID, "changed"); err != nil {
+		t.Fatalf("rename config: %v", err)
+	}
+	if _, err := service.RollbackToVersionWithNote(created.UUID, 1, "tester", "test rollback"); err != nil {
+		t.Fatalf("rollback to v1: %v", err)
+	}
+
+	versions := loadVersions(t, local, created.UUID)
+	if len(versions) != 3 {
+		t.Fatalf("expected 3 versions, got %d", len(versions))
+	}
+	if versions[2].VersionNo != 3 {
+		t.Fatalf("expected v3 as rollback version, got v%d", versions[2].VersionNo)
+	}
+	if versions[2].Data != versions[0].Data {
+		t.Fatalf("expected rollback snapshot data equal to v1 data")
+	}
+}
+
+func TestAppendOnlyInvariantOldRowsUnchanged(t *testing.T) {
+	service, local := newLocalConfigServiceForTest(t)
+
+	created, err := service.Create("tester", &CreateConfigRequest{
+		Name:        "initial",
+		Items:       models.ConfigItems{{LotName: "SSD_A", Quantity: 1, UnitPrice: 300}},
+		ServerCount: 1,
+	})
+	if err != nil {
+		t.Fatalf("create config: %v", err)
+	}
+
+	versionsBefore := loadVersions(t, local, created.UUID)
+	if len(versionsBefore) != 1 {
+		t.Fatalf("expected exactly one version after create")
+	}
+	v1Before := versionsBefore[0]
+
+	if _, err := service.RenameNoAuth(created.UUID, "after-rename"); err != nil {
+		t.Fatalf("rename config: %v", err)
+	}
+	if _, err := service.RollbackToVersion(created.UUID, 1, "tester"); err != nil {
+		t.Fatalf("rollback: %v", err)
+	}
+
+	versionsAfter := loadVersions(t, local, created.UUID)
+	if len(versionsAfter) != 3 {
+		t.Fatalf("expected 3 versions, got %d", len(versionsAfter))
+	}
+	v1After := versionsAfter[0]
+
+	if v1After.ID != v1Before.ID {
+		t.Fatalf("v1 id changed: before=%s after=%s", v1Before.ID, v1After.ID)
+	}
+	if v1After.Data != v1Before.Data {
+		t.Fatalf("v1 data changed")
+	}
+	if !v1After.CreatedAt.Equal(v1Before.CreatedAt) {
+		t.Fatalf("v1 created_at changed")
+	}
+}
+
+func TestConcurrentSaveNoDuplicateVersionNumbers(t *testing.T) {
+	service, local := newLocalConfigServiceForTest(t)
+
+	created, err := service.Create("tester", &CreateConfigRequest{
+		Name:        "base",
+		Items:       models.ConfigItems{{LotName: "NIC_A", Quantity: 1, UnitPrice: 150}},
+		ServerCount: 1,
+	})
+	if err != nil {
+		t.Fatalf("create config: %v", err)
+	}
+
+	const workers = 8
+	start := make(chan struct{})
+	errCh := make(chan error, workers)
+	var wg sync.WaitGroup
+
+	for i := 0; i < workers; i++ {
+		i := i
+		wg.Add(1)
+		go func() {
+			defer wg.Done()
+			<-start
+			if err := renameWithRetry(service, created.UUID, fmt.Sprintf("name-%d", i)); err != nil {
+				errCh <- err
+			}
+		}()
+	}
+
+	close(start)
+	wg.Wait()
+	close(errCh)
+
+	for err := range errCh {
+		if err != nil {
+			t.Fatalf("concurrent save failed: %v", err)
+		}
+	}
+
+	type counts struct {
+		Total         int64
+		DistinctCount int64
+		Max           int
+	}
+	var c counts
+	if err := local.DB().Raw(`
+SELECT
+	COUNT(*) as total,
+	COUNT(DISTINCT version_no) as distinct_count,
+	COALESCE(MAX(version_no), 0) as max
+FROM local_configuration_versions
+WHERE configuration_uuid = ?`, created.UUID).Scan(&c).Error; err != nil {
+		t.Fatalf("query version counts: %v", err)
+	}
+
+	if c.Total != c.DistinctCount {
+		t.Fatalf("duplicate version numbers detected: total=%d distinct=%d", c.Total, c.DistinctCount)
+	}
+	expected := int64(workers + 1) // initial create version + each successful save
+	if c.Total != expected || c.Max != int(expected) {
+		t.Fatalf("expected total=max=%d, got total=%d max=%d", expected, c.Total, c.Max)
+	}
+}
+
+func TestUpdateNoAuthKeepsProjectWhenProjectUUIDOmitted(t *testing.T) {
+	service, local := newLocalConfigServiceForTest(t)
+
+	project := &localdb.LocalProject{
+		UUID:          "project-keep",
+		OwnerUsername: "tester",
+		Name:          "Keep Project",
+		IsActive:      true,
+		CreatedAt:     time.Now(),
+		UpdatedAt:     time.Now(),
+		SyncStatus:    "synced",
+	}
+	if err := local.SaveProject(project); err != nil {
+		t.Fatalf("save project: %v", err)
+	}
+
+	created, err := service.Create("tester", &CreateConfigRequest{
+		Name:        "cfg",
+		ProjectUUID: &project.UUID,
+		Items:       models.ConfigItems{{LotName: "CPU_A", Quantity: 1, UnitPrice: 100}},
+		ServerCount: 1,
+	})
+	if err != nil {
+		t.Fatalf("create config: %v", err)
+	}
+	if created.ProjectUUID == nil || *created.ProjectUUID != project.UUID {
+		t.Fatalf("expected created config project_uuid=%s", project.UUID)
+	}
+
+	updated, err := service.UpdateNoAuth(created.UUID, &CreateConfigRequest{
+		Name:        "cfg-updated",
+		Items:       models.ConfigItems{{LotName: "CPU_A", Quantity: 2, UnitPrice: 100}},
+		ServerCount: 1,
+	})
+	if err != nil {
+		t.Fatalf("update config without project_uuid: %v", err)
+	}
+	if updated.ProjectUUID == nil || *updated.ProjectUUID != project.UUID {
+		t.Fatalf("expected project_uuid to stay %s after update, got %+v", project.UUID, updated.ProjectUUID)
+	}
+}
+
+func newLocalConfigServiceForTest(t *testing.T) (*LocalConfigurationService, *localdb.LocalDB) {
+	t.Helper()
+
+	dbPath := filepath.Join(t.TempDir(), "local.db")
+	local, err := localdb.New(dbPath)
+	if err != nil {
+		t.Fatalf("init local db: %v", err)
+	}
+	t.Cleanup(func() {
+		_ = local.Close()
+	})
+
+	return NewLocalConfigurationService(
+		local,
+		syncsvc.NewService(nil, local),
+		&QuoteService{},
+		func() bool { return false },
+	), local
+}
+
+func loadVersions(t *testing.T, local *localdb.LocalDB, configurationUUID string) []localdb.LocalConfigurationVersion {
+	t.Helper()
+	var versions []localdb.LocalConfigurationVersion
+	if err := local.DB().
+		Where("configuration_uuid = ?", configurationUUID).
+		Order("version_no ASC").
+		Find(&versions).Error; err != nil {
+		t.Fatalf("load versions: %v", err)
+	}
+	return versions
+}
+
+func renameWithRetry(service *LocalConfigurationService, uuid string, name string) error {
+	var lastErr error
+	for i := 0; i < 6; i++ {
+		_, err := service.RenameNoAuth(uuid, name)
+		if err == nil {
+			return nil
+		}
+		lastErr = err
+		if errors.Is(err, ErrVersionConflict) || strings.Contains(err.Error(), "database is locked") {
+			time.Sleep(10 * time.Millisecond)
+			continue
+		}
+		return err
+	}
+	return fmt.Errorf("rename retries exhausted: %w", lastErr)
+}
+
+func TestRollbackVersionSnapshotJSONMatchesV1(t *testing.T) {
+	service, local := newLocalConfigServiceForTest(t)
+
+	created, err := service.Create("tester", &CreateConfigRequest{
+		Name:        "initial",
+		Items:       models.ConfigItems{{LotName: "GPU_A", Quantity: 1, UnitPrice: 2000}},
+		ServerCount: 1,
+	})
+	if err != nil {
+		t.Fatalf("create config: %v", err)
+	}
+	if _, err := service.RenameNoAuth(created.UUID, "second"); err != nil {
+		t.Fatalf("rename: %v", err)
+	}
+	if _, err := service.RollbackToVersion(created.UUID, 1, "tester"); err != nil {
+		t.Fatalf("rollback: %v", err)
+	}
+
+	versions := loadVersions(t, local, created.UUID)
+	if len(versions) != 3 {
+		t.Fatalf("expected 3 versions")
+	}
+
+	var v1 map[string]any
+	var v3 map[string]any
+	if err := json.Unmarshal([]byte(versions[0].Data), &v1); err != nil {
+		t.Fatalf("unmarshal v1: %v", err)
+	}
+	if err := json.Unmarshal([]byte(versions[2].Data), &v3); err != nil {
+		t.Fatalf("unmarshal v3: %v", err)
+	}
+	if fmt.Sprintf("%v", v1["name"]) != fmt.Sprintf("%v", v3["name"]) {
+		t.Fatalf("rollback snapshot differs from v1 snapshot by name")
+	}
+}
+
+func TestDeleteMarksInactiveAndCreatesVersion(t *testing.T) {
+	service, local := newLocalConfigServiceForTest(t)
+
+	created, err := service.Create("tester", &CreateConfigRequest{
+		Name:        "to-archive",
+		Items:       models.ConfigItems{{LotName: "CPU_Z", Quantity: 1, UnitPrice: 500}},
+		ServerCount: 1,
+	})
+	if err != nil {
+		t.Fatalf("create config: %v", err)
+	}
+	if err := service.DeleteNoAuth(created.UUID); err != nil {
+		t.Fatalf("delete no auth: %v", err)
+	}
+
+	cfg, err := local.GetConfigurationByUUID(created.UUID)
+	if err != nil {
+		t.Fatalf("load archived config: %v", err)
+	}
+	if cfg.IsActive {
+		t.Fatalf("expected config to be inactive after delete")
+	}
+
+	versions := loadVersions(t, local, created.UUID)
+	if len(versions) != 2 {
+		t.Fatalf("expected 2 versions after archive, got %d", len(versions))
+	}
+	if versions[1].VersionNo != 2 {
+		t.Fatalf("expected archive to create version 2, got %d", versions[1].VersionNo)
+	}
+
+	list, total, err := service.ListAll(1, 20)
+	if err != nil {
+		t.Fatalf("list all: %v", err)
+	}
+	if total != int64(len(list)) {
+		t.Fatalf("unexpected total/list mismatch")
+	}
+	if len(list) != 0 {
+		t.Fatalf("expected archived config to be hidden from list")
+	}
+}
+
+func TestReactivateRestoresArchivedConfigurationAndCreatesVersion(t *testing.T) {
+	service, local := newLocalConfigServiceForTest(t)
+
+	created, err := service.Create("tester", &CreateConfigRequest{
+		Name:        "to-reactivate",
+		Items:       models.ConfigItems{{LotName: "CPU_R", Quantity: 1, UnitPrice: 700}},
+		ServerCount: 1,
+	})
+	if err != nil {
+		t.Fatalf("create config: %v", err)
+	}
+	if err := service.DeleteNoAuth(created.UUID); err != nil {
+		t.Fatalf("archive config: %v", err)
+	}
+	if _, err := service.ReactivateNoAuth(created.UUID); err != nil {
+		t.Fatalf("reactivate config: %v", err)
+	}
+
+	cfg, err := local.GetConfigurationByUUID(created.UUID)
+	if err != nil {
+		t.Fatalf("load reactivated config: %v", err)
+	}
+	if !cfg.IsActive {
+		t.Fatalf("expected config to be active after reactivation")
+	}
+
+	versions := loadVersions(t, local, created.UUID)
+	if len(versions) != 3 {
+		t.Fatalf("expected 3 versions after reactivation, got %d", len(versions))
+	}
+	if versions[2].VersionNo != 3 {
+		t.Fatalf("expected reactivation version 3, got %d", versions[2].VersionNo)
+	}
+
+	list, _, err := service.ListAll(1, 20)
+	if err != nil {
+		t.Fatalf("list all after reactivation: %v", err)
+	}
+	if len(list) != 1 {
+		t.Fatalf("expected reactivated config to be visible in list")
+	}
+}

internal/services/pricelist/service.go

@@ -1,76 +1,173 @@
 package pricelist
 
 import (
+	"errors"
 	"fmt"
 	"log/slog"
+	"strings"
 	"time"
 
 	"git.mchus.pro/mchus/quoteforge/internal/models"
 	"git.mchus.pro/mchus/quoteforge/internal/repository"
+	"git.mchus.pro/mchus/quoteforge/internal/services/pricing"
 	"gorm.io/gorm"
 )
 
 type Service struct {
 	repo          *repository.PricelistRepository
 	componentRepo *repository.ComponentRepository
+	pricingSvc    *pricing.Service
 	db            *gorm.DB
 }
 
-func NewService(db *gorm.DB, repo *repository.PricelistRepository, componentRepo *repository.ComponentRepository) *Service {
+type CreateProgress struct {
+	Current int
+	Total   int
+	Status  string
+	Message string
+	Updated int
+	Errors  int
+	LotName string
+}
+
+type CreateItemInput struct {
+	LotName string
+	Price   float64
+}
+
+func NewService(db *gorm.DB, repo *repository.PricelistRepository, componentRepo *repository.ComponentRepository, pricingSvc *pricing.Service) *Service {
 	return &Service{
 		repo:          repo,
 		componentRepo: componentRepo,
+		pricingSvc:    pricingSvc,
 		db:            db,
 	}
 }
 
 // CreateFromCurrentPrices creates a new pricelist by taking a snapshot of current prices
 func (s *Service) CreateFromCurrentPrices(createdBy string) (*models.Pricelist, error) {
+	return s.CreateFromCurrentPricesForSource(createdBy, string(models.PricelistSourceEstimate))
+}
+
+// CreateFromCurrentPricesForSource creates a new pricelist snapshot for one source.
+func (s *Service) CreateFromCurrentPricesForSource(createdBy, source string) (*models.Pricelist, error) {
+	return s.CreateForSourceWithProgress(createdBy, source, nil, nil)
+}
+
+// CreateFromCurrentPricesWithProgress creates a pricelist and reports coarse-grained progress.
+func (s *Service) CreateFromCurrentPricesWithProgress(createdBy, source string, onProgress func(CreateProgress)) (*models.Pricelist, error) {
+	return s.CreateForSourceWithProgress(createdBy, source, nil, onProgress)
+}
+
+// CreateForSourceWithProgress creates a source pricelist from current estimate snapshot or explicit item list.
+func (s *Service) CreateForSourceWithProgress(createdBy, source string, sourceItems []CreateItemInput, onProgress func(CreateProgress)) (*models.Pricelist, error) {
 	if s.repo == nil || s.db == nil {
 		return nil, fmt.Errorf("offline mode: cannot create pricelists")
 	}
+	source = string(models.NormalizePricelistSource(source))
 
-	version, err := s.repo.GenerateVersion()
-	if err != nil {
-		return nil, fmt.Errorf("generating version: %w", err)
-	}
-
-	expiresAt := time.Now().AddDate(1, 0, 0) // +1 year
-
-	pricelist := &models.Pricelist{
-		Version:   version,
-		CreatedBy: createdBy,
-		IsActive:  true,
-		ExpiresAt: &expiresAt,
-	}
-
-	if err := s.repo.Create(pricelist); err != nil {
-		return nil, fmt.Errorf("creating pricelist: %w", err)
-	}
-
-	// Get all components with prices from qt_lot_metadata
-	var metadata []models.LotMetadata
-	if err := s.db.Where("current_price IS NOT NULL AND current_price > 0").Find(&metadata).Error; err != nil {
-		return nil, fmt.Errorf("getting lot metadata: %w", err)
-	}
-
-	// Create pricelist items with all price settings
-	items := make([]models.PricelistItem, 0, len(metadata))
-	for _, m := range metadata {
-		if m.CurrentPrice == nil || *m.CurrentPrice <= 0 {
-			continue
+	report := func(p CreateProgress) {
+		if onProgress != nil {
+			onProgress(p)
 		}
-		items = append(items, models.PricelistItem{
-			PricelistID:      pricelist.ID,
-			LotName:          m.LotName,
-			Price:            *m.CurrentPrice,
-			PriceMethod:      string(m.PriceMethod),
-			PricePeriodDays:  m.PricePeriodDays,
-			PriceCoefficient: m.PriceCoefficient,
-			ManualPrice:      m.ManualPrice,
-			MetaPrices:       m.MetaPrices,
+	}
+	report(CreateProgress{Current: 0, Total: 100, Status: "starting", Message: "Подготовка"})
+
+	updated, errs := 0, 0
+	if source == string(models.PricelistSourceEstimate) && s.pricingSvc != nil {
+		report(CreateProgress{Current: 1, Total: 100, Status: "recalculating", Message: "Обновление цен компонентов"})
+		updated, errs = s.pricingSvc.RecalculateAllPricesWithProgress(func(p pricing.RecalculateProgress) {
+			if p.Total <= 0 {
+				return
+			}
+			phaseCurrent := 1 + int(float64(p.Current)/float64(p.Total)*90.0)
+			if phaseCurrent > 91 {
+				phaseCurrent = 91
+			}
+			report(CreateProgress{
+				Current: phaseCurrent,
+				Total:   100,
+				Status:  "recalculating",
+				Message: "Обновление цен компонентов",
+				Updated: p.Updated,
+				Errors:  p.Errors,
+				LotName: p.LotName,
+			})
 		})
 	}
+	report(CreateProgress{Current: 92, Total: 100, Status: "recalculated", Message: "Цены обновлены", Updated: updated, Errors: errs})
+
+	report(CreateProgress{Current: 95, Total: 100, Status: "snapshot", Message: "Создание снимка прайслиста"})
+	expiresAt := time.Now().AddDate(1, 0, 0) // +1 year
+	const maxCreateAttempts = 5
+	var pricelist *models.Pricelist
+	for attempt := 1; attempt <= maxCreateAttempts; attempt++ {
+		version, err := s.repo.GenerateVersionBySource(source)
+		if err != nil {
+			return nil, fmt.Errorf("generating version: %w", err)
+		}
+
+		pricelist = &models.Pricelist{
+			Source:    source,
+			Version:   version,
+			CreatedBy: createdBy,
+			IsActive:  true,
+			ExpiresAt: &expiresAt,
+		}
+
+		if err := s.repo.Create(pricelist); err != nil {
+			if isVersionConflictError(err) && attempt < maxCreateAttempts {
+				slog.Warn("pricelist version conflict, retrying",
+					"attempt", attempt,
+					"version", version,
+					"error", err,
+				)
+				time.Sleep(time.Duration(attempt*25) * time.Millisecond)
+				continue
+			}
+			return nil, fmt.Errorf("creating pricelist: %w", err)
+		}
+		break
+	}
+
+	items := make([]models.PricelistItem, 0)
+	if len(sourceItems) > 0 {
+		items = make([]models.PricelistItem, 0, len(sourceItems))
+		for _, srcItem := range sourceItems {
+			if strings.TrimSpace(srcItem.LotName) == "" || srcItem.Price <= 0 {
+				continue
+			}
+			items = append(items, models.PricelistItem{
+				PricelistID: pricelist.ID,
+				LotName:     strings.TrimSpace(srcItem.LotName),
+				Price:       srcItem.Price,
+			})
+		}
+	} else {
+		// Default snapshot source for estimate and backward compatibility.
+		var metadata []models.LotMetadata
+		if err := s.db.Where("current_price IS NOT NULL AND current_price > 0").Find(&metadata).Error; err != nil {
+			return nil, fmt.Errorf("getting lot metadata: %w", err)
+		}
+
+		// Create pricelist items with all price settings
+		items = make([]models.PricelistItem, 0, len(metadata))
+		for _, m := range metadata {
+			if m.CurrentPrice == nil || *m.CurrentPrice <= 0 {
+				continue
+			}
+			items = append(items, models.PricelistItem{
+				PricelistID:      pricelist.ID,
+				LotName:          m.LotName,
+				Price:            *m.CurrentPrice,
+				PriceMethod:      string(m.PriceMethod),
+				PricePeriodDays:  m.PricePeriodDays,
+				PriceCoefficient: m.PriceCoefficient,
+				ManualPrice:      m.ManualPrice,
+				MetaPrices:       m.MetaPrices,
+			})
+		}
+	}
 
 	if err := s.repo.CreateItems(items); err != nil {
 		// Clean up the pricelist if items creation fails
@@ -86,12 +183,27 @@ func (s *Service) CreateFromCurrentPrices(createdBy string) (*models.Pricelist,
 		"items", len(items),
 		"created_by", createdBy,
 	)
+	report(CreateProgress{Current: 100, Total: 100, Status: "completed", Message: "Прайслист создан", Updated: updated, Errors: errs})
 
 	return pricelist, nil
 }
 
+func isVersionConflictError(err error) bool {
+	if errors.Is(err, gorm.ErrDuplicatedKey) {
+		return true
+	}
+	msg := strings.ToLower(err.Error())
+	return strings.Contains(msg, "duplicate entry") &&
+		(strings.Contains(msg, "idx_qt_pricelists_source_version") || strings.Contains(msg, "idx_qt_pricelists_version"))
+}
+
 // List returns pricelists with pagination
 func (s *Service) List(page, perPage int) ([]models.PricelistSummary, int64, error) {
+	return s.ListBySource(page, perPage, "")
+}
+
+// ListBySource returns pricelists with optional source filter.
+func (s *Service) ListBySource(page, perPage int, source string) ([]models.PricelistSummary, int64, error) {
 	// If no database connection (offline mode), return empty list
 	if s.repo == nil {
 		return []models.PricelistSummary{}, 0, nil
@@ -104,7 +216,27 @@ func (s *Service) List(page, perPage int) ([]models.PricelistSummary, int64, err
 		perPage = 20
 	}
 	offset := (page - 1) * perPage
-	return s.repo.List(offset, perPage)
+	return s.repo.ListBySource(source, offset, perPage)
+}
+
+// ListActive returns active pricelists with pagination.
+func (s *Service) ListActive(page, perPage int) ([]models.PricelistSummary, int64, error) {
+	return s.ListActiveBySource(page, perPage, "")
+}
+
+// ListActiveBySource returns active pricelists with optional source filter.
+func (s *Service) ListActiveBySource(page, perPage int, source string) ([]models.PricelistSummary, int64, error) {
+	if s.repo == nil {
+		return []models.PricelistSummary{}, 0, nil
+	}
+	if page < 1 {
+		page = 1
+	}
+	if perPage < 1 {
+		perPage = 20
+	}
+	offset := (page - 1) * perPage
+	return s.repo.ListActiveBySource(source, offset, perPage)
 }
 
 // GetByID returns a pricelist by ID
@@ -138,6 +270,22 @@ func (s *Service) Delete(id uint) error {
 	return s.repo.Delete(id)
 }
 
+// SetActive toggles active state for a pricelist.
+func (s *Service) SetActive(id uint, isActive bool) error {
+	if s.repo == nil {
+		return fmt.Errorf("offline mode: cannot update pricelists")
+	}
+	return s.repo.SetActive(id, isActive)
+}
+
+// GetPriceForLot returns price by pricelist/lot.
+func (s *Service) GetPriceForLot(pricelistID uint, lotName string) (float64, error) {
+	if s.repo == nil {
+		return 0, fmt.Errorf("offline mode: pricelist service not available")
+	}
+	return s.repo.GetPriceForLot(pricelistID, lotName)
+}
+
 // CanWrite returns true if the user can create pricelists
 func (s *Service) CanWrite() bool {
 	if s.repo == nil {
@@ -156,10 +304,15 @@ func (s *Service) CanWriteDebug() (bool, string) {
 
 // GetLatestActive returns the most recent active pricelist
 func (s *Service) GetLatestActive() (*models.Pricelist, error) {
+	return s.GetLatestActiveBySource(string(models.PricelistSourceEstimate))
+}
+
+// GetLatestActiveBySource returns the latest active pricelist for a source.
+func (s *Service) GetLatestActiveBySource(source string) (*models.Pricelist, error) {
 	if s.repo == nil {
 		return nil, fmt.Errorf("offline mode: pricelist service not available")
 	}
-	return s.repo.GetLatestActive()
+	return s.repo.GetLatestActiveBySource(source)
 }
 
 // CleanupExpired deletes expired and unused pricelists

internal/services/pricing/service.go

@@ -1,17 +1,28 @@
 package pricing
 
 import (
+	"strings"
 	"time"
 
 	"git.mchus.pro/mchus/quoteforge/internal/config"
 	"git.mchus.pro/mchus/quoteforge/internal/models"
 	"git.mchus.pro/mchus/quoteforge/internal/repository"
+	"gorm.io/gorm"
 )
 
 type Service struct {
 	componentRepo *repository.ComponentRepository
 	priceRepo     *repository.PriceRepository
 	config        config.PricingConfig
+	db            *gorm.DB
+}
+
+type RecalculateProgress struct {
+	Current int
+	Total   int
+	LotName string
+	Updated int
+	Errors  int
 }
 
 func NewService(
@@ -19,10 +30,16 @@ func NewService(
 	priceRepo *repository.PriceRepository,
 	cfg config.PricingConfig,
 ) *Service {
+	var db *gorm.DB
+	if componentRepo != nil {
+		db = componentRepo.DB()
+	}
+
 	return &Service{
 		componentRepo: componentRepo,
 		priceRepo:     priceRepo,
 		config:        cfg,
+		db:            db,
 	}
 }
 
@@ -179,27 +196,183 @@ type PriceStats struct {
 
 // RecalculateAllPrices recalculates prices for all components
 func (s *Service) RecalculateAllPrices() (updated int, errors int) {
-	// Get all components
-	filter := repository.ComponentFilter{}
-	offset := 0
-	limit := 100
+	return s.RecalculateAllPricesWithProgress(nil)
+}
 
-	for {
-		components, _, err := s.componentRepo.List(filter, offset, limit)
-		if err != nil || len(components) == 0 {
-			break
-		}
+// RecalculateAllPricesWithProgress recalculates prices and reports progress.
+func (s *Service) RecalculateAllPricesWithProgress(onProgress func(RecalculateProgress)) (updated int, errors int) {
+	if s.db == nil {
+		return 0, 0
+	}
 
-		for _, comp := range components {
-			if err := s.UpdateComponentPrice(comp.LotName); err != nil {
-				errors++
-			} else {
-				updated++
+	// Logic mirrors "Обновить цены" in admin pricing.
+	var components []models.LotMetadata
+	if err := s.db.Find(&components).Error; err != nil {
+		return 0, len(components)
+	}
+	total := len(components)
+
+	var allLotNames []string
+	_ = s.db.Model(&models.LotMetadata{}).Pluck("lot_name", &allLotNames).Error
+
+	type lotDate struct {
+		Lot  string
+		Date time.Time
+	}
+	var latestDates []lotDate
+	_ = s.db.Raw(`SELECT lot, MAX(date) as date FROM lot_log GROUP BY lot`).Scan(&latestDates).Error
+	lotLatestDate := make(map[string]time.Time, len(latestDates))
+	for _, ld := range latestDates {
+		lotLatestDate[ld.Lot] = ld.Date
+	}
+
+	var skipped, manual, unchanged int
+	now := time.Now()
+	current := 0
+
+	for _, comp := range components {
+		current++
+		reportProgress := func() {
+			if onProgress != nil && (current%10 == 0 || current == total) {
+				onProgress(RecalculateProgress{
+					Current: current,
+					Total:   total,
+					LotName: comp.LotName,
+					Updated: updated,
+					Errors:  errors,
+				})
 			}
 		}
 
-		offset += limit
+		if comp.ManualPrice != nil && *comp.ManualPrice > 0 {
+			manual++
+			reportProgress()
+			continue
+		}
+
+		method := comp.PriceMethod
+		if method == "" {
+			method = models.PriceMethodMedian
+		}
+
+		var sourceLots []string
+		if comp.MetaPrices != "" {
+			sourceLots = expandMetaPricesWithCache(comp.MetaPrices, comp.LotName, allLotNames)
+		} else {
+			sourceLots = []string{comp.LotName}
+		}
+		if len(sourceLots) == 0 {
+			skipped++
+			reportProgress()
+			continue
+		}
+
+		if comp.PriceUpdatedAt != nil {
+			hasNewData := false
+			for _, lot := range sourceLots {
+				if latestDate, ok := lotLatestDate[lot]; ok && latestDate.After(*comp.PriceUpdatedAt) {
+					hasNewData = true
+					break
+				}
+			}
+			if !hasNewData {
+				unchanged++
+				reportProgress()
+				continue
+			}
+		}
+
+		var prices []float64
+		if comp.PricePeriodDays > 0 {
+			_ = s.db.Raw(
+				`SELECT price FROM lot_log WHERE lot IN ? AND date >= DATE_SUB(NOW(), INTERVAL ? DAY) ORDER BY price`,
+				sourceLots, comp.PricePeriodDays,
+			).Pluck("price", &prices).Error
+		} else {
+			_ = s.db.Raw(
+				`SELECT price FROM lot_log WHERE lot IN ? ORDER BY price`,
+				sourceLots,
+			).Pluck("price", &prices).Error
+		}
+
+		if len(prices) == 0 && comp.PricePeriodDays > 0 {
+			_ = s.db.Raw(`SELECT price FROM lot_log WHERE lot IN ? ORDER BY price`, sourceLots).Pluck("price", &prices).Error
+		}
+		if len(prices) == 0 {
+			skipped++
+			reportProgress()
+			continue
+		}
+
+		var basePrice float64
+		switch method {
+		case models.PriceMethodAverage:
+			basePrice = CalculateAverage(prices)
+		default:
+			basePrice = CalculateMedian(prices)
+		}
+		if basePrice <= 0 {
+			skipped++
+			reportProgress()
+			continue
+		}
+
+		finalPrice := basePrice
+		if comp.PriceCoefficient != 0 {
+			finalPrice = finalPrice * (1 + comp.PriceCoefficient/100)
+		}
+
+		if err := s.db.Model(&models.LotMetadata{}).
+			Where("lot_name = ?", comp.LotName).
+			Updates(map[string]interface{}{
+				"current_price":    finalPrice,
+				"price_updated_at": now,
+			}).Error; err != nil {
+			errors++
+		} else {
+			updated++
+		}
+
+		reportProgress()
+	}
+
+	if onProgress != nil && total == 0 {
+		onProgress(RecalculateProgress{
+			Current: 0,
+			Total:   0,
+			LotName: "",
+			Updated: updated,
+			Errors:  errors,
+		})
 	}
 
 	return updated, errors
 }
+
+func expandMetaPricesWithCache(metaPrices, excludeLot string, allLotNames []string) []string {
+	sources := strings.Split(metaPrices, ",")
+	var result []string
+	seen := make(map[string]bool)
+
+	for _, source := range sources {
+		source = strings.TrimSpace(source)
+		if source == "" || source == excludeLot {
+			continue
+		}
+
+		if strings.HasSuffix(source, "*") {
+			prefix := strings.TrimSuffix(source, "*")
+			for _, lot := range allLotNames {
+				if strings.HasPrefix(lot, prefix) && lot != excludeLot && !seen[lot] {
+					result = append(result, lot)
+					seen[lot] = true
+				}
+			}
+		} else if !seen[source] {
+			result = append(result, source)
+			seen[source] = true
+		}
+	}
+
+	return result
+}

internal/services/project.go

@@ -0,0 +1,319 @@
+package services
+
+import (
+	"encoding/json"
+	"errors"
+	"fmt"
+	"net/url"
+	"strings"
+	"time"
+
+	"git.mchus.pro/mchus/quoteforge/internal/localdb"
+	"git.mchus.pro/mchus/quoteforge/internal/models"
+	"git.mchus.pro/mchus/quoteforge/internal/services/sync"
+	"github.com/google/uuid"
+	"gorm.io/gorm"
+)
+
+var (
+	ErrProjectNotFound  = errors.New("project not found")
+	ErrProjectForbidden = errors.New("access to project forbidden")
+)
+
+type ProjectService struct {
+	localDB *localdb.LocalDB
+}
+
+func NewProjectService(localDB *localdb.LocalDB) *ProjectService {
+	return &ProjectService{localDB: localDB}
+}
+
+type CreateProjectRequest struct {
+	Name       string `json:"name"`
+	TrackerURL string `json:"tracker_url"`
+}
+
+type UpdateProjectRequest struct {
+	Name       string  `json:"name"`
+	TrackerURL *string `json:"tracker_url,omitempty"`
+}
+
+type ProjectConfigurationsResult struct {
+	ProjectUUID string                 `json:"project_uuid"`
+	Configs     []models.Configuration `json:"configurations"`
+	Total       float64                `json:"total"`
+}
+
+func (s *ProjectService) Create(ownerUsername string, req *CreateProjectRequest) (*models.Project, error) {
+	name := strings.TrimSpace(req.Name)
+	if name == "" {
+		return nil, fmt.Errorf("project name is required")
+	}
+
+	now := time.Now()
+	localProject := &localdb.LocalProject{
+		UUID:          uuid.NewString(),
+		OwnerUsername: ownerUsername,
+		Name:          name,
+		TrackerURL:    normalizeProjectTrackerURL(name, req.TrackerURL),
+		IsActive:      true,
+		IsSystem:      false,
+		CreatedAt:     now,
+		UpdatedAt:     now,
+		SyncStatus:    "pending",
+	}
+	if err := s.localDB.SaveProject(localProject); err != nil {
+		return nil, err
+	}
+	if err := s.enqueueProjectPendingChange(localProject, "create"); err != nil {
+		return nil, err
+	}
+	return localdb.LocalToProject(localProject), nil
+}
+
+func (s *ProjectService) Update(projectUUID, ownerUsername string, req *UpdateProjectRequest) (*models.Project, error) {
+	localProject, err := s.localDB.GetProjectByUUID(projectUUID)
+	if err != nil {
+		return nil, ErrProjectNotFound
+	}
+	if localProject.OwnerUsername != ownerUsername {
+		return nil, ErrProjectForbidden
+	}
+
+	name := strings.TrimSpace(req.Name)
+	if name == "" {
+		return nil, fmt.Errorf("project name is required")
+	}
+
+	localProject.Name = name
+	if req.TrackerURL != nil {
+		localProject.TrackerURL = normalizeProjectTrackerURL(name, *req.TrackerURL)
+	} else if strings.TrimSpace(localProject.TrackerURL) == "" {
+		localProject.TrackerURL = normalizeProjectTrackerURL(name, "")
+	}
+	localProject.UpdatedAt = time.Now()
+	localProject.SyncStatus = "pending"
+	if err := s.localDB.SaveProject(localProject); err != nil {
+		return nil, err
+	}
+	if err := s.enqueueProjectPendingChange(localProject, "update"); err != nil {
+		return nil, err
+	}
+	return localdb.LocalToProject(localProject), nil
+}
+
+func (s *ProjectService) Archive(projectUUID, ownerUsername string) error {
+	return s.setProjectActive(projectUUID, ownerUsername, false)
+}
+
+func (s *ProjectService) Reactivate(projectUUID, ownerUsername string) error {
+	return s.setProjectActive(projectUUID, ownerUsername, true)
+}
+
+func (s *ProjectService) setProjectActive(projectUUID, ownerUsername string, isActive bool) error {
+	return s.localDB.DB().Transaction(func(tx *gorm.DB) error {
+		var project localdb.LocalProject
+		if err := tx.Where("uuid = ?", projectUUID).First(&project).Error; err != nil {
+			return ErrProjectNotFound
+		}
+		if project.OwnerUsername != ownerUsername {
+			return ErrProjectForbidden
+		}
+		if project.IsActive == isActive {
+			return nil
+		}
+
+		project.IsActive = isActive
+		project.UpdatedAt = time.Now()
+		project.SyncStatus = "pending"
+		if err := tx.Save(&project).Error; err != nil {
+			return err
+		}
+
+		if err := s.enqueueProjectPendingChangeTx(tx, &project, boolToOp(isActive, "reactivate", "archive")); err != nil {
+			return err
+		}
+
+		var configs []localdb.LocalConfiguration
+		if err := tx.Where("project_uuid = ?", projectUUID).Find(&configs).Error; err != nil {
+			return err
+		}
+		for i := range configs {
+			cfg := configs[i]
+			cfg.IsActive = isActive
+			cfg.SyncStatus = "pending"
+			cfg.UpdatedAt = time.Now()
+			if err := tx.Save(&cfg).Error; err != nil {
+				return err
+			}
+
+			modelCfg := localdb.LocalToConfiguration(&cfg)
+			payload, err := json.Marshal(modelCfg)
+			if err != nil {
+				return err
+			}
+			change := &localdb.PendingChange{
+				EntityType: "configuration",
+				EntityUUID: cfg.UUID,
+				Operation:  "update",
+				Payload:    string(payload),
+				CreatedAt:  time.Now(),
+				Attempts:   0,
+			}
+			if err := tx.Create(change).Error; err != nil {
+				return err
+			}
+		}
+
+		return nil
+	})
+}
+
+func (s *ProjectService) ListByUser(ownerUsername string, includeArchived bool) ([]models.Project, error) {
+	localProjects, err := s.localDB.GetAllProjects(includeArchived)
+	if err != nil {
+		return nil, err
+	}
+
+	projects := make([]models.Project, 0, len(localProjects))
+	for i := range localProjects {
+		projects = append(projects, *localdb.LocalToProject(&localProjects[i]))
+	}
+	return projects, nil
+}
+
+func (s *ProjectService) GetByUUID(projectUUID, ownerUsername string) (*models.Project, error) {
+	localProject, err := s.localDB.GetProjectByUUID(projectUUID)
+	if err != nil {
+		return nil, ErrProjectNotFound
+	}
+	return localdb.LocalToProject(localProject), nil
+}
+
+func (s *ProjectService) ListConfigurations(projectUUID, ownerUsername, status string) (*ProjectConfigurationsResult, error) {
+	project, err := s.GetByUUID(projectUUID, ownerUsername)
+	if err != nil {
+		return nil, err
+	}
+	if !project.IsActive && status == "active" {
+		return &ProjectConfigurationsResult{
+			ProjectUUID: projectUUID,
+			Configs:     []models.Configuration{},
+			Total:       0,
+		}, nil
+	}
+
+	localConfigs, err := s.localDB.GetConfigurations()
+	if err != nil {
+		return nil, err
+	}
+
+	configs := make([]models.Configuration, 0, len(localConfigs))
+	total := 0.0
+	for i := range localConfigs {
+		localCfg := localConfigs[i]
+		if localCfg.ProjectUUID == nil || *localCfg.ProjectUUID != projectUUID {
+			continue
+		}
+		switch status {
+		case "active", "":
+			if !localCfg.IsActive {
+				continue
+			}
+		case "archived":
+			if localCfg.IsActive {
+				continue
+			}
+		case "all":
+		default:
+			if !localCfg.IsActive {
+				continue
+			}
+		}
+
+		cfg := localdb.LocalToConfiguration(&localCfg)
+		if cfg.TotalPrice != nil {
+			total += *cfg.TotalPrice
+		}
+		configs = append(configs, *cfg)
+	}
+
+	return &ProjectConfigurationsResult{
+		ProjectUUID: projectUUID,
+		Configs:     configs,
+		Total:       total,
+	}, nil
+}
+
+func (s *ProjectService) ResolveProjectUUID(ownerUsername string, projectUUID *string) (*string, error) {
+	if projectUUID == nil || strings.TrimSpace(*projectUUID) == "" {
+		project, err := s.localDB.EnsureDefaultProject(ownerUsername)
+		if err != nil {
+			return nil, err
+		}
+		return &project.UUID, nil
+	}
+
+	project, err := s.localDB.GetProjectByUUID(strings.TrimSpace(*projectUUID))
+	if err != nil {
+		return nil, ErrProjectNotFound
+	}
+	if project.OwnerUsername != ownerUsername {
+		return nil, ErrProjectForbidden
+	}
+	if !project.IsActive {
+		return nil, fmt.Errorf("project is archived")
+	}
+
+	resolved := project.UUID
+	return &resolved, nil
+}
+
+func normalizeProjectTrackerURL(projectCode, trackerURL string) string {
+	trimmedURL := strings.TrimSpace(trackerURL)
+	if trimmedURL != "" {
+		return trimmedURL
+	}
+
+	trimmedCode := strings.TrimSpace(projectCode)
+	if trimmedCode == "" {
+		return ""
+	}
+
+	return "https://tracker.yandex.ru/" + url.PathEscape(trimmedCode)
+}
+
+func (s *ProjectService) enqueueProjectPendingChange(project *localdb.LocalProject, operation string) error {
+	return s.enqueueProjectPendingChangeTx(s.localDB.DB(), project, operation)
+}
+
+func (s *ProjectService) enqueueProjectPendingChangeTx(tx *gorm.DB, project *localdb.LocalProject, operation string) error {
+	payload := sync.ProjectChangePayload{
+		EventID:        uuid.NewString(),
+		ProjectUUID:    project.UUID,
+		Operation:      operation,
+		Snapshot:       *localdb.LocalToProject(project),
+		CreatedAt:      time.Now().UTC(),
+		IdempotencyKey: fmt.Sprintf("%s:%d:%s", project.UUID, project.UpdatedAt.UnixNano(), operation),
+	}
+	raw, err := json.Marshal(payload)
+	if err != nil {
+		return err
+	}
+	change := &localdb.PendingChange{
+		EntityType: "project",
+		EntityUUID: project.UUID,
+		Operation:  operation,
+		Payload:    string(raw),
+		CreatedAt:  time.Now(),
+		Attempts:   0,
+	}
+	return tx.Create(change).Error
+}
+
+func boolToOp(v bool, whenTrue, whenFalse string) string {
+	if v {
+		return whenTrue
+	}
+	return whenFalse
+}

internal/services/quote.go

@@ -3,6 +3,7 @@ package services
 import (
 	"errors"
 
+	"git.mchus.pro/mchus/quoteforge/internal/localdb"
 	"git.mchus.pro/mchus/quoteforge/internal/models"
 	"git.mchus.pro/mchus/quoteforge/internal/repository"
 	"git.mchus.pro/mchus/quoteforge/internal/services/pricing"
@@ -17,17 +18,23 @@ var (
 type QuoteService struct {
 	componentRepo  *repository.ComponentRepository
 	statsRepo      *repository.StatsRepository
+	pricelistRepo  *repository.PricelistRepository
+	localDB        *localdb.LocalDB
 	pricingService *pricing.Service
 }
 
 func NewQuoteService(
 	componentRepo *repository.ComponentRepository,
 	statsRepo *repository.StatsRepository,
+	pricelistRepo *repository.PricelistRepository,
+	localDB *localdb.LocalDB,
 	pricingService *pricing.Service,
 ) *QuoteService {
 	return &QuoteService{
 		componentRepo:  componentRepo,
 		statsRepo:      statsRepo,
+		pricelistRepo:  pricelistRepo,
+		localDB:        localDB,
 		pricingService: pricingService,
 	}
 }
@@ -57,6 +64,34 @@ type QuoteRequest struct {
 	} `json:"items"`
 }
 
+type PriceLevelsRequest struct {
+	Items []struct {
+		LotName  string `json:"lot_name"`
+		Quantity int    `json:"quantity"`
+	} `json:"items"`
+	PricelistIDs map[string]uint `json:"pricelist_ids,omitempty"`
+}
+
+type PriceLevelsItem struct {
+	LotName              string   `json:"lot_name"`
+	Quantity             int      `json:"quantity"`
+	EstimatePrice        *float64 `json:"estimate_price"`
+	WarehousePrice       *float64 `json:"warehouse_price"`
+	CompetitorPrice      *float64 `json:"competitor_price"`
+	DeltaWhEstimateAbs   *float64 `json:"delta_wh_estimate_abs"`
+	DeltaWhEstimatePct   *float64 `json:"delta_wh_estimate_pct"`
+	DeltaCompEstimateAbs *float64 `json:"delta_comp_estimate_abs"`
+	DeltaCompEstimatePct *float64 `json:"delta_comp_estimate_pct"`
+	DeltaCompWhAbs       *float64 `json:"delta_comp_wh_abs"`
+	DeltaCompWhPct       *float64 `json:"delta_comp_wh_pct"`
+	PriceMissing         []string `json:"price_missing"`
+}
+
+type PriceLevelsResult struct {
+	Items                []PriceLevelsItem `json:"items"`
+	ResolvedPricelistIDs map[string]uint   `json:"resolved_pricelist_ids"`
+}
+
 func (s *QuoteService) ValidateAndCalculate(req *QuoteRequest) (*QuoteValidationResult, error) {
 	if len(req.Items) == 0 {
 		return nil, ErrEmptyQuote
@@ -130,6 +165,132 @@ func (s *QuoteService) ValidateAndCalculate(req *QuoteRequest) (*QuoteValidation
 	return result, nil
 }
 
+func (s *QuoteService) CalculatePriceLevels(req *PriceLevelsRequest) (*PriceLevelsResult, error) {
+	if len(req.Items) == 0 {
+		return nil, ErrEmptyQuote
+	}
+
+	result := &PriceLevelsResult{
+		Items:                make([]PriceLevelsItem, 0, len(req.Items)),
+		ResolvedPricelistIDs: map[string]uint{},
+	}
+
+	for _, reqItem := range req.Items {
+		item := PriceLevelsItem{
+			LotName:      reqItem.LotName,
+			Quantity:     reqItem.Quantity,
+			PriceMissing: make([]string, 0, 3),
+		}
+
+		estimatePrice, estimateID := s.lookupLevelPrice(models.PricelistSourceEstimate, reqItem.LotName, req.PricelistIDs)
+		warehousePrice, warehouseID := s.lookupLevelPrice(models.PricelistSourceWarehouse, reqItem.LotName, req.PricelistIDs)
+		competitorPrice, competitorID := s.lookupLevelPrice(models.PricelistSourceCompetitor, reqItem.LotName, req.PricelistIDs)
+
+		item.EstimatePrice = estimatePrice
+		item.WarehousePrice = warehousePrice
+		item.CompetitorPrice = competitorPrice
+
+		if estimateID != 0 {
+			result.ResolvedPricelistIDs[string(models.PricelistSourceEstimate)] = estimateID
+		}
+		if warehouseID != 0 {
+			result.ResolvedPricelistIDs[string(models.PricelistSourceWarehouse)] = warehouseID
+		}
+		if competitorID != 0 {
+			result.ResolvedPricelistIDs[string(models.PricelistSourceCompetitor)] = competitorID
+		}
+
+		if item.EstimatePrice == nil {
+			item.PriceMissing = append(item.PriceMissing, string(models.PricelistSourceEstimate))
+		}
+		if item.WarehousePrice == nil {
+			item.PriceMissing = append(item.PriceMissing, string(models.PricelistSourceWarehouse))
+		}
+		if item.CompetitorPrice == nil {
+			item.PriceMissing = append(item.PriceMissing, string(models.PricelistSourceCompetitor))
+		}
+
+		item.DeltaWhEstimateAbs, item.DeltaWhEstimatePct = calculateDelta(item.WarehousePrice, item.EstimatePrice)
+		item.DeltaCompEstimateAbs, item.DeltaCompEstimatePct = calculateDelta(item.CompetitorPrice, item.EstimatePrice)
+		item.DeltaCompWhAbs, item.DeltaCompWhPct = calculateDelta(item.CompetitorPrice, item.WarehousePrice)
+
+		result.Items = append(result.Items, item)
+	}
+
+	return result, nil
+}
+
+func calculateDelta(target, base *float64) (*float64, *float64) {
+	if target == nil || base == nil {
+		return nil, nil
+	}
+	abs := *target - *base
+	if *base == 0 {
+		return &abs, nil
+	}
+	pct := (abs / *base) * 100
+	return &abs, &pct
+}
+
+func (s *QuoteService) lookupLevelPrice(source models.PricelistSource, lotName string, pricelistIDs map[string]uint) (*float64, uint) {
+	sourceKey := string(source)
+	if id, ok := pricelistIDs[sourceKey]; ok && id > 0 {
+		price, found := s.lookupPriceByPricelistID(id, lotName)
+		if found {
+			return &price, id
+		}
+		return nil, id
+	}
+
+	if s.pricelistRepo != nil {
+		price, id, err := s.pricelistRepo.GetPriceForLotBySource(sourceKey, lotName)
+		if err == nil && price > 0 {
+			return &price, id
+		}
+
+		latest, latestErr := s.pricelistRepo.GetLatestActiveBySource(sourceKey)
+		if latestErr == nil {
+			return nil, latest.ID
+		}
+	}
+
+	if s.localDB != nil {
+		localPL, err := s.localDB.GetLatestLocalPricelistBySource(sourceKey)
+		if err != nil {
+			return nil, 0
+		}
+		price, err := s.localDB.GetLocalPriceForLot(localPL.ID, lotName)
+		if err != nil || price <= 0 {
+			return nil, localPL.ServerID
+		}
+		return &price, localPL.ServerID
+	}
+
+	return nil, 0
+}
+
+func (s *QuoteService) lookupPriceByPricelistID(pricelistID uint, lotName string) (float64, bool) {
+	if s.pricelistRepo != nil {
+		price, err := s.pricelistRepo.GetPriceForLot(pricelistID, lotName)
+		if err == nil && price > 0 {
+			return price, true
+		}
+	}
+
+	if s.localDB != nil {
+		localPL, err := s.localDB.GetLocalPricelistByServerID(pricelistID)
+		if err != nil {
+			return 0, false
+		}
+		price, err := s.localDB.GetLocalPriceForLot(localPL.ID, lotName)
+		if err == nil && price > 0 {
+			return price, true
+		}
+	}
+
+	return 0, false
+}
+
 // RecordUsage records that components were used in a quote
 func (s *QuoteService) RecordUsage(items []models.ConfigItem) error {
 	if s.statsRepo == nil {

internal/services/quote_price_levels_test.go

@@ -0,0 +1,124 @@
+package services
+
+import (
+	"testing"
+	"time"
+
+	"git.mchus.pro/mchus/quoteforge/internal/models"
+	"git.mchus.pro/mchus/quoteforge/internal/repository"
+	"github.com/glebarez/sqlite"
+	"gorm.io/gorm"
+)
+
+func TestCalculatePriceLevels_WithMissingLevel(t *testing.T) {
+	db := newPriceLevelsTestDB(t)
+	repo := repository.NewPricelistRepository(db)
+	service := NewQuoteService(nil, nil, repo, nil, nil)
+
+	estimate := seedPricelistWithItem(t, repo, "estimate", "CPU_X", 100)
+	_ = estimate
+	seedPricelistWithItem(t, repo, "warehouse", "CPU_X", 120)
+
+	result, err := service.CalculatePriceLevels(&PriceLevelsRequest{
+		Items: []struct {
+			LotName  string `json:"lot_name"`
+			Quantity int    `json:"quantity"`
+		}{
+			{LotName: "CPU_X", Quantity: 2},
+		},
+	})
+	if err != nil {
+		t.Fatalf("CalculatePriceLevels returned error: %v", err)
+	}
+	if len(result.Items) != 1 {
+		t.Fatalf("expected 1 item, got %d", len(result.Items))
+	}
+	item := result.Items[0]
+	if item.EstimatePrice == nil || *item.EstimatePrice != 100 {
+		t.Fatalf("expected estimate 100, got %#v", item.EstimatePrice)
+	}
+	if item.WarehousePrice == nil || *item.WarehousePrice != 120 {
+		t.Fatalf("expected warehouse 120, got %#v", item.WarehousePrice)
+	}
+	if item.CompetitorPrice != nil {
+		t.Fatalf("expected competitor nil, got %#v", item.CompetitorPrice)
+	}
+	if len(item.PriceMissing) != 1 || item.PriceMissing[0] != "competitor" {
+		t.Fatalf("expected price_missing [competitor], got %#v", item.PriceMissing)
+	}
+	if item.DeltaWhEstimateAbs == nil || *item.DeltaWhEstimateAbs != 20 {
+		t.Fatalf("expected delta abs 20, got %#v", item.DeltaWhEstimateAbs)
+	}
+	if item.DeltaWhEstimatePct == nil || *item.DeltaWhEstimatePct != 20 {
+		t.Fatalf("expected delta pct 20, got %#v", item.DeltaWhEstimatePct)
+	}
+}
+
+func TestCalculatePriceLevels_UsesExplicitPricelistIDs(t *testing.T) {
+	db := newPriceLevelsTestDB(t)
+	repo := repository.NewPricelistRepository(db)
+	service := NewQuoteService(nil, nil, repo, nil, nil)
+
+	olderEstimate := seedPricelistWithItem(t, repo, "estimate", "CPU_Y", 80)
+	seedPricelistWithItem(t, repo, "estimate", "CPU_Y", 90)
+
+	result, err := service.CalculatePriceLevels(&PriceLevelsRequest{
+		Items: []struct {
+			LotName  string `json:"lot_name"`
+			Quantity int    `json:"quantity"`
+		}{
+			{LotName: "CPU_Y", Quantity: 1},
+		},
+		PricelistIDs: map[string]uint{
+			"estimate": olderEstimate.ID,
+		},
+	})
+	if err != nil {
+		t.Fatalf("CalculatePriceLevels returned error: %v", err)
+	}
+	item := result.Items[0]
+	if item.EstimatePrice == nil || *item.EstimatePrice != 80 {
+		t.Fatalf("expected explicit estimate 80, got %#v", item.EstimatePrice)
+	}
+}
+
+func newPriceLevelsTestDB(t *testing.T) *gorm.DB {
+	t.Helper()
+	db, err := gorm.Open(sqlite.Open("file::memory:?cache=shared"), &gorm.Config{})
+	if err != nil {
+		t.Fatalf("open sqlite: %v", err)
+	}
+	if err := db.AutoMigrate(&models.Pricelist{}, &models.PricelistItem{}); err != nil {
+		t.Fatalf("migrate: %v", err)
+	}
+	return db
+}
+
+func seedPricelistWithItem(t *testing.T, repo *repository.PricelistRepository, source, lot string, price float64) *models.Pricelist {
+	t.Helper()
+	version, err := repo.GenerateVersionBySource(source)
+	if err != nil {
+		t.Fatalf("GenerateVersionBySource: %v", err)
+	}
+	expiresAt := time.Now().Add(24 * time.Hour)
+	pl := &models.Pricelist{
+		Source:    source,
+		Version:   version,
+		CreatedBy: "test",
+		IsActive:  true,
+		ExpiresAt: &expiresAt,
+	}
+	if err := repo.Create(pl); err != nil {
+		t.Fatalf("create pricelist: %v", err)
+	}
+	if err := repo.CreateItems([]models.PricelistItem{
+		{
+			PricelistID: pl.ID,
+			LotName:     lot,
+			Price:       price,
+		},
+	}); err != nil {
+		t.Fatalf("create items: %v", err)
+	}
+	return pl
+}

internal/services/stock_import_test.go

@@ -0,0 +1,256 @@
+package services
+
+import (
+	"archive/zip"
+	"bytes"
+	"strings"
+	"testing"
+	"time"
+
+	"git.mchus.pro/mchus/quoteforge/internal/models"
+	"github.com/glebarez/sqlite"
+	"gorm.io/gorm"
+)
+
+func TestParseMXLRows(t *testing.T) {
+	content := strings.Join([]string{
+		`MOXCEL`,
+		`{16,2,{1,1,{"ru","Папка"}},0},1,`,
+		`{16,2,{1,1,{"ru","Артикул"}},0},2,`,
+		`{16,2,{1,1,{"ru","Описание"}},0},3,`,
+		`{16,2,{1,1,{"ru","Вендор"}},0},4,`,
+		`{16,2,{1,1,{"ru","Стоимость"}},0},5,`,
+		`{16,2,{1,1,{"ru","Свободно"}},0},6,`,
+		`{16,2,{1,1,{"ru","Серверы"}},0},1,`,
+		`{16,2,{1,1,{"ru","CPU_X"}},0},2,`,
+		`{16,2,{1,1,{"ru","Процессор"}},0},3,`,
+		`{16,2,{1,1,{"ru","AMD"}},0},4,`,
+		`{16,2,{1,1,{"ru","125,50"}},0},5,`,
+		`{16,2,{1,1,{"ru","10"}},0},6,`,
+	}, "\n")
+
+	rows, err := parseMXLRows([]byte(content))
+	if err != nil {
+		t.Fatalf("parseMXLRows: %v", err)
+	}
+	if len(rows) != 1 {
+		t.Fatalf("expected 1 row, got %d", len(rows))
+	}
+	if rows[0].Article != "CPU_X" {
+		t.Fatalf("unexpected article: %s", rows[0].Article)
+	}
+	if rows[0].Price != 125.50 {
+		t.Fatalf("unexpected price: %v", rows[0].Price)
+	}
+	if rows[0].Qty != 10 {
+		t.Fatalf("unexpected qty: %v", rows[0].Qty)
+	}
+}
+
+func TestParseXLSXRows(t *testing.T) {
+	xlsx := buildMinimalXLSX(t, []string{
+		"Папка", "Артикул", "Описание", "Вендор", "Стоимость", "Свободно",
+	}, []string{
+		"Серверы", "CPU_A", "Процессор", "AMD", "99,25", "7",
+	})
+
+	rows, err := parseXLSXRows(xlsx)
+	if err != nil {
+		t.Fatalf("parseXLSXRows: %v", err)
+	}
+	if len(rows) != 1 {
+		t.Fatalf("expected 1 row, got %d", len(rows))
+	}
+	if rows[0].Article != "CPU_A" {
+		t.Fatalf("unexpected article: %s", rows[0].Article)
+	}
+	if rows[0].Price != 99.25 {
+		t.Fatalf("unexpected price: %v", rows[0].Price)
+	}
+}
+
+func TestLotResolverPrecedenceAndConflicts(t *testing.T) {
+	r := &lotResolver{
+		partnumberToLots: map[string][]string{
+			"pn-1":        {"LOT_MAPPED"},
+			"pn-conflict": {"LOT_A", "LOT_B"},
+		},
+		exactLots: map[string]string{
+			"cpu_a": "CPU_A",
+		},
+		allLots: []string{"CPU_A_LONG", "CPU_A", "ABC ", "ABC\t"},
+	}
+
+	lot, typ, err := r.resolve("pn-1")
+	if err != nil || lot != "LOT_MAPPED" || typ != "mapping_table" {
+		t.Fatalf("mapping_table mismatch: lot=%s typ=%s err=%v", lot, typ, err)
+	}
+
+	lot, typ, err = r.resolve("cpu_a")
+	if err != nil || lot != "CPU_A" || typ != "article_exact" {
+		t.Fatalf("article_exact mismatch: lot=%s typ=%s err=%v", lot, typ, err)
+	}
+
+	lot, typ, err = r.resolve("cpu_a_long_suffix")
+	if err != nil || lot != "CPU_A_LONG" || typ != "prefix" {
+		t.Fatalf("prefix mismatch: lot=%s typ=%s err=%v", lot, typ, err)
+	}
+
+	_, _, err = r.resolve("abx")
+	if err == nil {
+		t.Fatalf("expected not found error")
+	}
+
+	_, _, err = r.resolve("pn-conflict")
+	if err == nil || err != errResolveConflict {
+		t.Fatalf("expected conflict, got %v", err)
+	}
+}
+
+func TestImportNoValidRowsKeepsStockLog(t *testing.T) {
+	db := openTestDB(t)
+	if err := db.AutoMigrate(&models.StockLog{}); err != nil {
+		t.Fatalf("automigrate stock_log: %v", err)
+	}
+
+	existing := models.StockLog{
+		Lot:   "CPU_A",
+		Date:  time.Now(),
+		Price: 10,
+	}
+	if err := db.Create(&existing).Error; err != nil {
+		t.Fatalf("seed stock_log: %v", err)
+	}
+
+	svc := NewStockImportService(db, nil)
+	headerOnly := []byte(strings.Join([]string{
+		`MOXCEL`,
+		`{16,2,{1,1,{"ru","Папка"}},0},1,`,
+		`{16,2,{1,1,{"ru","Артикул"}},0},2,`,
+		`{16,2,{1,1,{"ru","Описание"}},0},3,`,
+		`{16,2,{1,1,{"ru","Вендор"}},0},4,`,
+		`{16,2,{1,1,{"ru","Стоимость"}},0},5,`,
+		`{16,2,{1,1,{"ru","Свободно"}},0},6,`,
+	}, "\n"))
+
+	if _, err := svc.Import("test.mxl", headerOnly, time.Now(), "tester", nil); err == nil {
+		t.Fatalf("expected import error")
+	}
+
+	var count int64
+	if err := db.Model(&models.StockLog{}).Count(&count).Error; err != nil {
+		t.Fatalf("count stock_log: %v", err)
+	}
+	if count != 1 {
+		t.Fatalf("expected stock_log unchanged, got %d rows", count)
+	}
+}
+
+func TestReplaceStockLogs(t *testing.T) {
+	db := openTestDB(t)
+	if err := db.AutoMigrate(&models.StockLog{}); err != nil {
+		t.Fatalf("automigrate stock_log: %v", err)
+	}
+
+	if err := db.Create(&models.StockLog{Lot: "OLD", Date: time.Now(), Price: 1}).Error; err != nil {
+		t.Fatalf("seed old row: %v", err)
+	}
+
+	svc := NewStockImportService(db, nil)
+	records := []models.StockLog{
+		{Lot: "NEW_1", Date: time.Now(), Price: 2},
+		{Lot: "NEW_2", Date: time.Now(), Price: 3},
+	}
+
+	deleted, inserted, err := svc.replaceStockLogs(records)
+	if err != nil {
+		t.Fatalf("replaceStockLogs: %v", err)
+	}
+	if deleted != 1 || inserted != 2 {
+		t.Fatalf("unexpected replace stats deleted=%d inserted=%d", deleted, inserted)
+	}
+
+	var rows []models.StockLog
+	if err := db.Order("lot").Find(&rows).Error; err != nil {
+		t.Fatalf("read rows: %v", err)
+	}
+	if len(rows) != 2 || rows[0].Lot != "NEW_1" || rows[1].Lot != "NEW_2" {
+		t.Fatalf("unexpected rows after replace: %#v", rows)
+	}
+}
+
+func openTestDB(t *testing.T) *gorm.DB {
+	t.Helper()
+	db, err := gorm.Open(sqlite.Open(":memory:"), &gorm.Config{})
+	if err != nil {
+		t.Fatalf("open sqlite: %v", err)
+	}
+	return db
+}
+
+func buildMinimalXLSX(t *testing.T, headers, values []string) []byte {
+	t.Helper()
+	var buf bytes.Buffer
+	zw := zip.NewWriter(&buf)
+
+	write := func(name, body string) {
+		w, err := zw.Create(name)
+		if err != nil {
+			t.Fatalf("create zip entry %s: %v", name, err)
+		}
+		if _, err := w.Write([]byte(body)); err != nil {
+			t.Fatalf("write zip entry %s: %v", name, err)
+		}
+	}
+
+	write("[Content_Types].xml", `<?xml version="1.0" encoding="UTF-8"?>
+<Types xmlns="http://schemas.openxmlformats.org/package/2006/content-types">
+  <Default Extension="rels" ContentType="application/vnd.openxmlformats-package.relationships+xml"/>
+  <Default Extension="xml" ContentType="application/xml"/>
+  <Override PartName="/xl/workbook.xml" ContentType="application/vnd.openxmlformats-officedocument.spreadsheetml.sheet.main+xml"/>
+  <Override PartName="/xl/worksheets/sheet1.xml" ContentType="application/vnd.openxmlformats-officedocument.spreadsheetml.worksheet+xml"/>
+</Types>`)
+	write("_rels/.rels", `<?xml version="1.0" encoding="UTF-8"?>
+<Relationships xmlns="http://schemas.openxmlformats.org/package/2006/relationships">
+  <Relationship Id="rId1" Type="http://schemas.openxmlformats.org/officeDocument/2006/relationships/officeDocument" Target="xl/workbook.xml"/>
+</Relationships>`)
+	write("xl/workbook.xml", `<?xml version="1.0" encoding="UTF-8"?>
+<workbook xmlns="http://schemas.openxmlformats.org/spreadsheetml/2006/main">
+  <sheets>
+    <sheet name="Sheet1" sheetId="1" r:id="rId1" xmlns:r="http://schemas.openxmlformats.org/officeDocument/2006/relationships"/>
+  </sheets>
+</workbook>`)
+	write("xl/_rels/workbook.xml.rels", `<?xml version="1.0" encoding="UTF-8"?>
+<Relationships xmlns="http://schemas.openxmlformats.org/package/2006/relationships">
+  <Relationship Id="rId1" Type="http://schemas.openxmlformats.org/officeDocument/2006/relationships/worksheet" Target="worksheets/sheet1.xml"/>
+</Relationships>`)
+
+	makeCell := func(ref, value string) string {
+		escaped := strings.ReplaceAll(value, "&", "&amp;")
+		escaped = strings.ReplaceAll(escaped, "<", "&lt;")
+		escaped = strings.ReplaceAll(escaped, ">", "&gt;")
+		return `<c r="` + ref + `" t="inlineStr"><is><t>` + escaped + `</t></is></c>`
+	}
+
+	cols := []string{"A", "B", "C", "D", "E", "F"}
+	var headerCells, valueCells strings.Builder
+	for i := 0; i < len(cols) && i < len(headers); i++ {
+		headerCells.WriteString(makeCell(cols[i]+"1", headers[i]))
+	}
+	for i := 0; i < len(cols) && i < len(values); i++ {
+		valueCells.WriteString(makeCell(cols[i]+"2", values[i]))
+	}
+
+	write("xl/worksheets/sheet1.xml", `<?xml version="1.0" encoding="UTF-8"?>
+<worksheet xmlns="http://schemas.openxmlformats.org/spreadsheetml/2006/main">
+  <sheetData>
+    <row r="1">`+headerCells.String()+`</row>
+    <row r="2">`+valueCells.String()+`</row>
+  </sheetData>
+</worksheet>`)
+
+	if err := zw.Close(); err != nil {
+		t.Fatalf("close zip: %v", err)
+	}
+	return buf.Bytes()
+}

internal/services/sync/service_order_test.go

@@ -0,0 +1,25 @@
+package sync
+
+import (
+	"testing"
+
+	"git.mchus.pro/mchus/quoteforge/internal/localdb"
+)
+
+func TestPrioritizeProjectChanges(t *testing.T) {
+	changes := []localdb.PendingChange{
+		{ID: 1, EntityType: "configuration"},
+		{ID: 2, EntityType: "project"},
+		{ID: 3, EntityType: "configuration"},
+		{ID: 4, EntityType: "project"},
+	}
+
+	sorted := prioritizeProjectChanges(changes)
+	if len(sorted) != 4 {
+		t.Fatalf("unexpected sorted length: %d", len(sorted))
+	}
+
+	if sorted[0].EntityType != "project" || sorted[1].EntityType != "project" {
+		t.Fatalf("expected project changes first, got order: %s, %s", sorted[0].EntityType, sorted[1].EntityType)
+	}
+}

internal/services/sync/service_projects_push_test.go

@@ -0,0 +1,374 @@
+package sync_test
+
+import (
+	"encoding/json"
+	"fmt"
+	"path/filepath"
+	"testing"
+	"time"
+
+	"git.mchus.pro/mchus/quoteforge/internal/localdb"
+	"git.mchus.pro/mchus/quoteforge/internal/models"
+	"git.mchus.pro/mchus/quoteforge/internal/services"
+	syncsvc "git.mchus.pro/mchus/quoteforge/internal/services/sync"
+	"github.com/glebarez/sqlite"
+	"gorm.io/gorm"
+)
+
+func TestPushPendingChangesProjectsBeforeConfigurations(t *testing.T) {
+	local := newLocalDBForSyncTest(t)
+	serverDB := newServerDBForSyncTest(t)
+
+	localSync := syncsvc.NewService(nil, local)
+	projectService := services.NewProjectService(local)
+	configService := services.NewLocalConfigurationService(local, localSync, &services.QuoteService{}, func() bool { return false })
+
+	project, err := projectService.Create("tester", &services.CreateProjectRequest{Name: "Project A"})
+	if err != nil {
+		t.Fatalf("create project: %v", err)
+	}
+
+	cfg, err := configService.Create("tester", &services.CreateConfigRequest{
+		Name:        "Cfg A",
+		Items:       models.ConfigItems{{LotName: "CPU_A", Quantity: 1, UnitPrice: 1000}},
+		ServerCount: 1,
+		ProjectUUID: &project.UUID,
+	})
+	if err != nil {
+		t.Fatalf("create config: %v", err)
+	}
+
+	pushService := syncsvc.NewServiceWithDB(serverDB, local)
+	pushed, err := pushService.PushPendingChanges()
+	if err != nil {
+		t.Fatalf("push pending changes: %v", err)
+	}
+	if pushed < 2 {
+		t.Fatalf("expected at least 2 pushed changes, got %d", pushed)
+	}
+
+	var serverProject models.Project
+	if err := serverDB.Where("uuid = ?", project.UUID).First(&serverProject).Error; err != nil {
+		t.Fatalf("project not pushed to server: %v", err)
+	}
+
+	var serverCfg models.Configuration
+	if err := serverDB.Where("uuid = ?", cfg.UUID).First(&serverCfg).Error; err != nil {
+		t.Fatalf("configuration not pushed to server: %v", err)
+	}
+	if serverCfg.ProjectUUID == nil || *serverCfg.ProjectUUID != project.UUID {
+		t.Fatalf("expected project_uuid=%s on pushed config, got %v", project.UUID, serverCfg.ProjectUUID)
+	}
+
+	if got := local.CountPendingChanges(); got != 0 {
+		t.Fatalf("expected pending queue to be empty, got %d", got)
+	}
+}
+
+func TestPushPendingChangesProjectCreateThenUpdateBeforeFirstPush(t *testing.T) {
+	local := newLocalDBForSyncTest(t)
+	serverDB := newServerDBForSyncTest(t)
+
+	localSync := syncsvc.NewService(nil, local)
+	projectService := services.NewProjectService(local)
+	configService := services.NewLocalConfigurationService(local, localSync, &services.QuoteService{}, func() bool { return false })
+	pushService := syncsvc.NewServiceWithDB(serverDB, local)
+
+	project, err := projectService.Create("tester", &services.CreateProjectRequest{Name: "Project v1"})
+	if err != nil {
+		t.Fatalf("create project: %v", err)
+	}
+	if _, err := projectService.Update(project.UUID, "tester", &services.UpdateProjectRequest{Name: "Project v2"}); err != nil {
+		t.Fatalf("update project: %v", err)
+	}
+
+	cfg, err := configService.Create("tester", &services.CreateConfigRequest{
+		Name:        "Cfg linked",
+		Items:       models.ConfigItems{{LotName: "CPU_A", Quantity: 1, UnitPrice: 1000}},
+		ServerCount: 1,
+		ProjectUUID: &project.UUID,
+	})
+	if err != nil {
+		t.Fatalf("create config: %v", err)
+	}
+
+	if _, err := pushService.PushPendingChanges(); err != nil {
+		t.Fatalf("push pending changes: %v", err)
+	}
+
+	var serverProject models.Project
+	if err := serverDB.Where("uuid = ?", project.UUID).First(&serverProject).Error; err != nil {
+		t.Fatalf("project not pushed to server: %v", err)
+	}
+	if serverProject.Name != "Project v2" {
+		t.Fatalf("expected latest project name, got %q", serverProject.Name)
+	}
+
+	var serverCfg models.Configuration
+	if err := serverDB.Where("uuid = ?", cfg.UUID).First(&serverCfg).Error; err != nil {
+		t.Fatalf("configuration not pushed to server: %v", err)
+	}
+	if serverCfg.ProjectUUID == nil || *serverCfg.ProjectUUID != project.UUID {
+		t.Fatalf("expected project_uuid=%s on pushed config, got %v", project.UUID, serverCfg.ProjectUUID)
+	}
+}
+
+func TestPushPendingChangesSkipsStaleUpdateAndAppliesLatest(t *testing.T) {
+	local := newLocalDBForSyncTest(t)
+	serverDB := newServerDBForSyncTest(t)
+
+	localSync := syncsvc.NewService(nil, local)
+	configService := services.NewLocalConfigurationService(local, localSync, &services.QuoteService{}, func() bool { return false })
+	pushService := syncsvc.NewServiceWithDB(serverDB, local)
+
+	created, err := configService.Create("tester", &services.CreateConfigRequest{
+		Name:        "Cfg v1",
+		Items:       models.ConfigItems{{LotName: "CPU_A", Quantity: 1, UnitPrice: 1000}},
+		ServerCount: 1,
+	})
+	if err != nil {
+		t.Fatalf("create config: %v", err)
+	}
+	if _, err := pushService.PushPendingChanges(); err != nil {
+		t.Fatalf("initial push: %v", err)
+	}
+
+	if _, err := configService.UpdateNoAuth(created.UUID, &services.CreateConfigRequest{
+		Name:        "Cfg v2",
+		Items:       models.ConfigItems{{LotName: "CPU_A", Quantity: 2, UnitPrice: 1000}},
+		ServerCount: 1,
+		ProjectUUID: created.ProjectUUID,
+	}); err != nil {
+		t.Fatalf("update config: %v", err)
+	}
+
+	localCfg, err := local.GetConfigurationByUUID(created.UUID)
+	if err != nil {
+		t.Fatalf("get local config: %v", err)
+	}
+	cfgSnapshot := localdb.LocalToConfiguration(localCfg)
+	stalePayload := syncsvc.ConfigurationChangePayload{
+		EventID:           "stale-event",
+		IdempotencyKey:    fmt.Sprintf("%s:v1:update", created.UUID),
+		ConfigurationUUID: created.UUID,
+		ProjectUUID:       cfgSnapshot.ProjectUUID,
+		Operation:         "update",
+		CurrentVersionID:  "stale-v1",
+		CurrentVersionNo:  1,
+		ConflictPolicy:    "last_write_wins",
+		Snapshot:          *cfgSnapshot,
+		CreatedAt:         time.Now().UTC().Add(-2 * time.Second),
+	}
+	raw, err := json.Marshal(stalePayload)
+	if err != nil {
+		t.Fatalf("marshal stale payload: %v", err)
+	}
+	if err := local.DB().Create(&localdb.PendingChange{
+		EntityType: "configuration",
+		EntityUUID: created.UUID,
+		Operation:  "update",
+		Payload:    string(raw),
+		CreatedAt:  time.Now().Add(-1 * time.Second),
+	}).Error; err != nil {
+		t.Fatalf("insert stale pending change: %v", err)
+	}
+
+	if _, err := pushService.PushPendingChanges(); err != nil {
+		t.Fatalf("push pending with stale event: %v", err)
+	}
+
+	var serverCfg models.Configuration
+	if err := serverDB.Where("uuid = ?", created.UUID).First(&serverCfg).Error; err != nil {
+		t.Fatalf("get server config: %v", err)
+	}
+	if serverCfg.Name != "Cfg v2" {
+		t.Fatalf("expected latest name to win, got %q", serverCfg.Name)
+	}
+	if got := local.CountPendingChanges(); got != 0 {
+		t.Fatalf("expected empty pending queue, got %d", got)
+	}
+}
+
+func TestPushPendingChangesCreateIsIdempotent(t *testing.T) {
+	local := newLocalDBForSyncTest(t)
+	serverDB := newServerDBForSyncTest(t)
+
+	localSync := syncsvc.NewService(nil, local)
+	configService := services.NewLocalConfigurationService(local, localSync, &services.QuoteService{}, func() bool { return false })
+	pushService := syncsvc.NewServiceWithDB(serverDB, local)
+
+	created, err := configService.Create("tester", &services.CreateConfigRequest{
+		Name:        "Cfg Idempotent",
+		Items:       models.ConfigItems{{LotName: "CPU_B", Quantity: 1, UnitPrice: 500}},
+		ServerCount: 1,
+	})
+	if err != nil {
+		t.Fatalf("create config: %v", err)
+	}
+	if _, err := pushService.PushPendingChanges(); err != nil {
+		t.Fatalf("initial push: %v", err)
+	}
+
+	localCfg, err := local.GetConfigurationByUUID(created.UUID)
+	if err != nil {
+		t.Fatalf("get local config: %v", err)
+	}
+	currentVersionNo, currentVersionID := getCurrentVersionInfo(t, local, created.UUID, localCfg.CurrentVersionID)
+	cfgSnapshot := localdb.LocalToConfiguration(localCfg)
+	duplicatePayload := syncsvc.ConfigurationChangePayload{
+		EventID:           "duplicate-create-event",
+		IdempotencyKey:    fmt.Sprintf("%s:v%d:create", created.UUID, currentVersionNo),
+		ConfigurationUUID: created.UUID,
+		ProjectUUID:       cfgSnapshot.ProjectUUID,
+		Operation:         "create",
+		CurrentVersionID:  currentVersionID,
+		CurrentVersionNo:  currentVersionNo,
+		ConflictPolicy:    "last_write_wins",
+		Snapshot:          *cfgSnapshot,
+		CreatedAt:         time.Now().UTC(),
+	}
+	raw, err := json.Marshal(duplicatePayload)
+	if err != nil {
+		t.Fatalf("marshal duplicate payload: %v", err)
+	}
+	if err := local.AddPendingChange("configuration", created.UUID, "create", string(raw)); err != nil {
+		t.Fatalf("add duplicate create pending change: %v", err)
+	}
+
+	if pushed, err := pushService.PushPendingChanges(); err != nil {
+		t.Fatalf("push duplicate create: %v", err)
+	} else if pushed != 1 {
+		t.Fatalf("expected 1 pushed change for duplicate create, got %d", pushed)
+	}
+
+	var count int64
+	if err := serverDB.Model(&models.Configuration{}).Where("uuid = ?", created.UUID).Count(&count).Error; err != nil {
+		t.Fatalf("count server configs: %v", err)
+	}
+	if count != 1 {
+		t.Fatalf("expected one server row after idempotent create, got %d", count)
+	}
+}
+
+func TestPushPendingChangesCreateThenUpdateBeforeFirstPush(t *testing.T) {
+	local := newLocalDBForSyncTest(t)
+	serverDB := newServerDBForSyncTest(t)
+
+	localSync := syncsvc.NewService(nil, local)
+	configService := services.NewLocalConfigurationService(local, localSync, &services.QuoteService{}, func() bool { return false })
+	pushService := syncsvc.NewServiceWithDB(serverDB, local)
+
+	created, err := configService.Create("tester", &services.CreateConfigRequest{
+		Name:        "Cfg v1",
+		Items:       models.ConfigItems{{LotName: "CPU_X", Quantity: 1, UnitPrice: 700}},
+		ServerCount: 1,
+	})
+	if err != nil {
+		t.Fatalf("create config: %v", err)
+	}
+
+	if _, err := configService.UpdateNoAuth(created.UUID, &services.CreateConfigRequest{
+		Name:        "Cfg v2",
+		Items:       models.ConfigItems{{LotName: "CPU_X", Quantity: 3, UnitPrice: 700}},
+		ServerCount: 1,
+		ProjectUUID: created.ProjectUUID,
+	}); err != nil {
+		t.Fatalf("update config before first push: %v", err)
+	}
+
+	pushed, err := pushService.PushPendingChanges()
+	if err != nil {
+		t.Fatalf("push pending changes: %v", err)
+	}
+	if pushed < 1 {
+		t.Fatalf("expected at least one pushed change, got %d", pushed)
+	}
+
+	var serverCfg models.Configuration
+	if err := serverDB.Where("uuid = ?", created.UUID).First(&serverCfg).Error; err != nil {
+		t.Fatalf("configuration not pushed to server: %v", err)
+	}
+	if serverCfg.Name != "Cfg v2" {
+		t.Fatalf("expected latest update to be pushed, got %q", serverCfg.Name)
+	}
+
+	localCfg, err := local.GetConfigurationByUUID(created.UUID)
+	if err != nil {
+		t.Fatalf("get local config: %v", err)
+	}
+	if localCfg.ServerID == nil || *localCfg.ServerID == 0 {
+		t.Fatalf("expected local configuration to have server_id after push, got %+v", localCfg.ServerID)
+	}
+}
+
+func newLocalDBForSyncTest(t *testing.T) *localdb.LocalDB {
+	t.Helper()
+	localPath := filepath.Join(t.TempDir(), "local.db")
+	local, err := localdb.New(localPath)
+	if err != nil {
+		t.Fatalf("init local db: %v", err)
+	}
+	t.Cleanup(func() { _ = local.Close() })
+	return local
+}
+
+func newServerDBForSyncTest(t *testing.T) *gorm.DB {
+	t.Helper()
+	serverPath := filepath.Join(t.TempDir(), "server.db")
+	db, err := gorm.Open(sqlite.Open(serverPath), &gorm.Config{})
+	if err != nil {
+		t.Fatalf("open server sqlite: %v", err)
+	}
+	if err := db.Exec(`
+CREATE TABLE qt_projects (
+	id INTEGER PRIMARY KEY AUTOINCREMENT,
+	uuid TEXT NOT NULL UNIQUE,
+	owner_username TEXT NOT NULL,
+	name TEXT NOT NULL,
+	tracker_url TEXT NULL,
+	is_active INTEGER NOT NULL DEFAULT 1,
+	is_system INTEGER NOT NULL DEFAULT 0,
+	created_at DATETIME,
+	updated_at DATETIME
+);`).Error; err != nil {
+		t.Fatalf("create qt_projects: %v", err)
+	}
+	if err := db.Exec(`
+CREATE TABLE qt_configurations (
+	id INTEGER PRIMARY KEY AUTOINCREMENT,
+	uuid TEXT NOT NULL UNIQUE,
+	user_id INTEGER NULL,
+	owner_username TEXT NOT NULL,
+	project_uuid TEXT NULL,
+	app_version TEXT NULL,
+	name TEXT NOT NULL,
+	items TEXT NOT NULL,
+	total_price REAL NULL,
+	custom_price REAL NULL,
+	notes TEXT NULL,
+	is_template INTEGER NOT NULL DEFAULT 0,
+	server_count INTEGER NOT NULL DEFAULT 1,
+	pricelist_id INTEGER NULL,
+	price_updated_at DATETIME NULL,
+	created_at DATETIME
+);`).Error; err != nil {
+		t.Fatalf("create qt_configurations: %v", err)
+	}
+	return db
+}
+
+func getCurrentVersionInfo(t *testing.T, local *localdb.LocalDB, configurationUUID string, currentVersionID *string) (int, string) {
+	t.Helper()
+	if currentVersionID == nil || *currentVersionID == "" {
+		t.Fatalf("current version id is empty for %s", configurationUUID)
+	}
+
+	var version localdb.LocalConfigurationVersion
+	if err := local.DB().
+		Where("id = ? AND configuration_uuid = ?", *currentVersionID, configurationUUID).
+		First(&version).Error; err != nil {
+		t.Fatalf("get current version info: %v", err)
+	}
+
+	return version.VersionNo, version.ID
+}

internal/services/sync/worker.go

@@ -83,7 +83,11 @@ func (w *Worker) runSync() {
 	err = w.service.SyncPricelistsIfNeeded()
 	if err != nil {
 		w.logger.Warn("background sync: failed to sync pricelists", "error", err)
+		return
 	}
 
+	// Mark user's sync heartbeat (used for online/offline status in UI).
+	w.service.RecordSyncHeartbeat()
+
 	w.logger.Info("background sync cycle completed")
 }

migrations/006_add_local_configuration_versions.sql

@@ -0,0 +1,80 @@
+-- Add full-snapshot versioning for local configurations (SQLite)
+-- 1) Create local_configuration_versions
+-- 2) Add current_version_id to local_configurations
+-- 3) Backfill v1 snapshots from existing local_configurations
+
+PRAGMA foreign_keys = ON;
+
+BEGIN TRANSACTION;
+
+CREATE TABLE local_configuration_versions (
+    id TEXT PRIMARY KEY,
+    configuration_uuid TEXT NOT NULL,
+    version_no INTEGER NOT NULL,
+    data TEXT NOT NULL,
+    change_note TEXT NULL,
+    created_by TEXT NULL,
+    app_version TEXT NULL,
+    created_at DATETIME NOT NULL DEFAULT CURRENT_TIMESTAMP,
+    FOREIGN KEY (configuration_uuid) REFERENCES local_configurations(uuid),
+    UNIQUE(configuration_uuid, version_no)
+);
+
+ALTER TABLE local_configurations
+    ADD COLUMN current_version_id TEXT NULL;
+
+CREATE INDEX idx_lcv_config_created
+    ON local_configuration_versions(configuration_uuid, created_at DESC);
+
+CREATE INDEX idx_lcv_config_version
+    ON local_configuration_versions(configuration_uuid, version_no DESC);
+
+-- Backfill v1 snapshot for every existing configuration.
+INSERT INTO local_configuration_versions (
+    id,
+    configuration_uuid,
+    version_no,
+    data,
+    change_note,
+    created_by,
+    app_version,
+    created_at
+)
+SELECT
+    uuid || '-v1' AS id,
+    uuid AS configuration_uuid,
+    1 AS version_no,
+    json_object(
+        'uuid', uuid,
+        'server_id', server_id,
+        'name', name,
+        'items', CASE WHEN json_valid(items) THEN json(items) ELSE items END,
+        'total_price', total_price,
+        'custom_price', custom_price,
+        'notes', notes,
+        'is_template', is_template,
+        'server_count', server_count,
+        'price_updated_at', price_updated_at,
+        'created_at', created_at,
+        'updated_at', updated_at,
+        'synced_at', synced_at,
+        'sync_status', sync_status,
+        'original_user_id', original_user_id,
+        'original_username', original_username,
+        'app_version', NULL
+    ) AS data,
+    'Initial snapshot backfill (v1)' AS change_note,
+    NULL AS created_by,
+    NULL AS app_version,
+    COALESCE(created_at, CURRENT_TIMESTAMP) AS created_at
+FROM local_configurations;
+
+UPDATE local_configurations
+SET current_version_id = (
+    SELECT lcv.id
+    FROM local_configuration_versions lcv
+    WHERE lcv.configuration_uuid = local_configurations.uuid
+      AND lcv.version_no = 1
+);
+
+COMMIT;

migrations/007_detach_configurations_from_qt_users.sql

@@ -0,0 +1,25 @@
+-- Detach qt_configurations from qt_users (ownership is owner_username text)
+-- Safe for MySQL 8+/MariaDB 10.2+ via INFORMATION_SCHEMA checks.
+
+SET @fk_exists := (
+    SELECT COUNT(*)
+    FROM information_schema.TABLE_CONSTRAINTS
+    WHERE CONSTRAINT_SCHEMA = DATABASE()
+      AND TABLE_NAME = 'qt_configurations'
+      AND CONSTRAINT_NAME = 'fk_qt_configurations_user'
+      AND CONSTRAINT_TYPE = 'FOREIGN KEY'
+);
+
+SET @drop_fk_sql := IF(
+    @fk_exists > 0,
+    'ALTER TABLE qt_configurations DROP FOREIGN KEY fk_qt_configurations_user',
+    'SELECT ''fk_qt_configurations_user not found, skip'' '
+);
+PREPARE stmt_drop_fk FROM @drop_fk_sql;
+EXECUTE stmt_drop_fk;
+DEALLOCATE PREPARE stmt_drop_fk;
+
+-- user_id becomes optional legacy column (can stay NULL)
+ALTER TABLE qt_configurations
+    MODIFY COLUMN user_id BIGINT UNSIGNED NULL;
+

migrations/008_add_app_version_to_configurations.sql

@@ -0,0 +1,4 @@
+-- Track application version used for configuration writes (create/update via sync)
+ALTER TABLE qt_configurations
+    ADD COLUMN app_version VARCHAR(64) NULL DEFAULT NULL AFTER owner_username;
+

migrations/009_add_projects.sql

@@ -0,0 +1,45 @@
+-- Add projects and attach configurations to projects
+
+CREATE TABLE qt_projects (
+    id BIGINT UNSIGNED AUTO_INCREMENT PRIMARY KEY,
+    uuid CHAR(36) NOT NULL UNIQUE,
+    owner_username VARCHAR(100) NOT NULL,
+    name VARCHAR(200) NOT NULL,
+    is_active BOOLEAN NOT NULL DEFAULT TRUE,
+    is_system BOOLEAN NOT NULL DEFAULT FALSE,
+    created_at TIMESTAMP NOT NULL DEFAULT CURRENT_TIMESTAMP,
+    updated_at TIMESTAMP NOT NULL DEFAULT CURRENT_TIMESTAMP ON UPDATE CURRENT_TIMESTAMP,
+    INDEX idx_qt_projects_owner_username (owner_username),
+    INDEX idx_qt_projects_is_active (is_active),
+    INDEX idx_qt_projects_is_system (is_system)
+);
+
+ALTER TABLE qt_configurations
+    ADD COLUMN project_uuid CHAR(36) NULL AFTER app_version,
+    ADD INDEX idx_qt_configurations_project_uuid (project_uuid),
+    ADD CONSTRAINT fk_qt_configurations_project_uuid
+        FOREIGN KEY (project_uuid) REFERENCES qt_projects(uuid)
+        ON UPDATE CASCADE
+        ON DELETE SET NULL;
+
+-- One system project per owner: "Без проекта"
+INSERT INTO qt_projects (uuid, owner_username, name, is_active, is_system, created_at, updated_at)
+SELECT UUID(), owners.owner_username, 'Без проекта', TRUE, TRUE, NOW(), NOW()
+FROM (
+    SELECT DISTINCT owner_username
+    FROM qt_configurations
+) AS owners
+LEFT JOIN qt_projects p
+    ON p.owner_username = owners.owner_username
+   AND p.name = 'Без проекта'
+   AND p.is_system = TRUE
+WHERE p.id IS NULL;
+
+-- Attach all existing configurations without project to the system project
+UPDATE qt_configurations c
+JOIN qt_projects p
+    ON p.owner_username = c.owner_username
+   AND p.name = 'Без проекта'
+   AND p.is_system = TRUE
+SET c.project_uuid = p.uuid
+WHERE c.project_uuid IS NULL OR c.project_uuid = '';

migrations/010_add_pricelist_sync_status.sql

@@ -0,0 +1,8 @@
+CREATE TABLE IF NOT EXISTS qt_pricelist_sync_status (
+    username VARCHAR(100) NOT NULL,
+    last_sync_at DATETIME NOT NULL,
+    updated_at DATETIME NOT NULL,
+    app_version VARCHAR(64) NULL,
+    PRIMARY KEY (username),
+    INDEX idx_qt_pricelist_sync_status_last_sync (last_sync_at)
+);

migrations/010_add_pricelist_to_configurations.sql

@@ -0,0 +1,37 @@
+-- Add pricelist binding to configurations
+ALTER TABLE qt_configurations
+    ADD COLUMN pricelist_id BIGINT UNSIGNED NULL AFTER server_count;
+
+ALTER TABLE qt_configurations
+    ADD INDEX idx_qt_configurations_pricelist_id (pricelist_id),
+    ADD CONSTRAINT fk_qt_configurations_pricelist_id
+        FOREIGN KEY (pricelist_id)
+        REFERENCES qt_pricelists(id)
+        ON DELETE RESTRICT
+        ON UPDATE CASCADE;
+
+-- Backfill existing configurations to latest active pricelist
+SET @latest_active_pricelist_id := (
+    SELECT id
+    FROM qt_pricelists
+    WHERE is_active = 1
+    ORDER BY created_at DESC
+    LIMIT 1
+);
+
+UPDATE qt_configurations
+SET pricelist_id = @latest_active_pricelist_id
+WHERE pricelist_id IS NULL
+  AND @latest_active_pricelist_id IS NOT NULL;
+
+-- Recalculate usage_count from configuration bindings
+UPDATE qt_pricelists SET usage_count = 0;
+
+UPDATE qt_pricelists pl
+JOIN (
+    SELECT pricelist_id, COUNT(*) AS cnt
+    FROM qt_configurations
+    WHERE pricelist_id IS NOT NULL
+    GROUP BY pricelist_id
+) cfg ON cfg.pricelist_id = pl.id
+SET pl.usage_count = cfg.cnt;

migrations/011_add_app_version_to_pricelist_sync_status.sql

@@ -0,0 +1,2 @@
+ALTER TABLE qt_pricelist_sync_status
+    ADD COLUMN IF NOT EXISTS app_version VARCHAR(64) NULL;

migrations/012_add_project_tracker_url.sql

@@ -0,0 +1,7 @@
+ALTER TABLE qt_projects
+    ADD COLUMN tracker_url VARCHAR(500) NULL AFTER name;
+
+UPDATE qt_projects
+SET tracker_url = CONCAT('https://tracker.yandex.ru/', TRIM(name))
+WHERE (tracker_url IS NULL OR tracker_url = '')
+  AND TRIM(COALESCE(name, '')) <> '';

migrations/013_add_pricelist_source.sql

@@ -0,0 +1,15 @@
+ALTER TABLE qt_pricelists
+	ADD COLUMN IF NOT EXISTS source ENUM('estimate', 'warehouse', 'competitor') NOT NULL DEFAULT 'estimate' AFTER id;
+
+UPDATE qt_pricelists
+SET source = 'estimate'
+WHERE source IS NULL OR source = '';
+
+ALTER TABLE qt_pricelists
+	DROP INDEX IF EXISTS idx_qt_pricelists_version;
+
+CREATE UNIQUE INDEX idx_qt_pricelists_source_version
+	ON qt_pricelists(source, version);
+
+CREATE INDEX idx_qt_pricelists_source_created_at
+	ON qt_pricelists(source, created_at);

migrations/014_add_stock_log.sql

@@ -0,0 +1,14 @@
+CREATE TABLE IF NOT EXISTS stock_log (
+    stock_log_id BIGINT UNSIGNED AUTO_INCREMENT PRIMARY KEY,
+    lot VARCHAR(255) NOT NULL,
+    supplier VARCHAR(255) NULL,
+    date DATE NOT NULL,
+    price DECIMAL(12,2) NOT NULL,
+    quality VARCHAR(255) NULL,
+    comments TEXT NULL,
+    vendor VARCHAR(255) NULL,
+    qty DECIMAL(14,3) NULL,
+    INDEX idx_stock_log_lot_date (lot, date),
+    INDEX idx_stock_log_date (date),
+    INDEX idx_stock_log_vendor (vendor)
+);

migrations/015_add_lot_partnumbers.sql

@@ -0,0 +1,7 @@
+CREATE TABLE IF NOT EXISTS lot_partnumbers (
+    partnumber VARCHAR(255) NOT NULL,
+    lot_name VARCHAR(255) NOT NULL DEFAULT '',
+    description VARCHAR(10000) NULL,
+    PRIMARY KEY (partnumber, lot_name),
+    INDEX idx_lot_partnumbers_lot_name (lot_name)
+);

migrations/016_add_price_level_pricelist_bindings.sql

@@ -0,0 +1,25 @@
+-- Add per-source pricelist bindings for configurations
+ALTER TABLE qt_configurations
+    ADD COLUMN IF NOT EXISTS warehouse_pricelist_id BIGINT UNSIGNED NULL AFTER pricelist_id,
+    ADD COLUMN IF NOT EXISTS competitor_pricelist_id BIGINT UNSIGNED NULL AFTER warehouse_pricelist_id,
+    ADD COLUMN IF NOT EXISTS disable_price_refresh BOOLEAN NOT NULL DEFAULT FALSE AFTER competitor_pricelist_id;
+
+ALTER TABLE qt_configurations
+    ADD INDEX IF NOT EXISTS idx_qt_configurations_warehouse_pricelist_id (warehouse_pricelist_id),
+    ADD INDEX IF NOT EXISTS idx_qt_configurations_competitor_pricelist_id (competitor_pricelist_id);
+
+-- Optional FK bindings (safe if re-run due IF NOT EXISTS on columns/indexes)
+-- If your MariaDB version does not support IF NOT EXISTS for FK names, duplicate-FK errors are ignored by migration runner.
+ALTER TABLE qt_configurations
+    ADD CONSTRAINT fk_qt_configurations_warehouse_pricelist_id
+        FOREIGN KEY (warehouse_pricelist_id)
+        REFERENCES qt_pricelists(id)
+        ON DELETE RESTRICT
+        ON UPDATE CASCADE;
+
+ALTER TABLE qt_configurations
+    ADD CONSTRAINT fk_qt_configurations_competitor_pricelist_id
+        FOREIGN KEY (competitor_pricelist_id)
+        REFERENCES qt_pricelists(id)
+        ON DELETE RESTRICT
+        ON UPDATE CASCADE;

migrations/017_update_lot_partnumbers_for_placeholders.sql

@@ -0,0 +1,25 @@
+-- Allow placeholder mappings (partnumber without bound lot) and store import description.
+ALTER TABLE lot_partnumbers
+    ADD COLUMN IF NOT EXISTS description VARCHAR(10000) NULL AFTER lot_name;
+
+ALTER TABLE lot_partnumbers
+    MODIFY COLUMN lot_name VARCHAR(255) NOT NULL DEFAULT '';
+
+-- Drop FK on lot_name if it exists to allow unresolved placeholders.
+SET @lp_fk_name := (
+    SELECT kcu.CONSTRAINT_NAME
+    FROM information_schema.KEY_COLUMN_USAGE kcu
+    WHERE kcu.TABLE_SCHEMA = DATABASE()
+      AND kcu.TABLE_NAME = 'lot_partnumbers'
+      AND kcu.COLUMN_NAME = 'lot_name'
+      AND kcu.REFERENCED_TABLE_NAME IS NOT NULL
+    LIMIT 1
+);
+SET @lp_drop_fk_sql := IF(
+    @lp_fk_name IS NULL,
+    'SELECT 1',
+    CONCAT('ALTER TABLE lot_partnumbers DROP FOREIGN KEY `', @lp_fk_name, '`')
+);
+PREPARE lp_stmt FROM @lp_drop_fk_sql;
+EXECUTE lp_stmt;
+DEALLOCATE PREPARE lp_stmt;

migrations/018_add_stock_ignore_rules.sql

@@ -0,0 +1,10 @@
+CREATE TABLE IF NOT EXISTS stock_ignore_rules (
+    id BIGINT UNSIGNED NOT NULL AUTO_INCREMENT,
+    target VARCHAR(20) NOT NULL,
+    match_type VARCHAR(20) NOT NULL,
+    pattern VARCHAR(500) NOT NULL,
+    created_at TIMESTAMP NOT NULL DEFAULT CURRENT_TIMESTAMP,
+    PRIMARY KEY (id),
+    UNIQUE KEY uq_stock_ignore_rule (target, match_type, pattern),
+    KEY idx_stock_ignore_target (target)
+);

releases/v1.0.3/RELEASE_NOTES.md

@@ -0,0 +1,51 @@
+# QuoteForge v1.0.3
+
+Дата релиза: 2026-02-06
+Тег: `v1.0.3`
+Диапазон изменений: `v1.0.2..v1.0.3`
+
+## Что нового
+
+- Добавлена страница управления проектами `/projects` с:
+  - датой и временем создания проекта;
+  - сортировкой по названию и дате создания;
+  - серверной пагинацией;
+  - фильтром по автору в заголовке таблицы.
+- Добавлена отдельная вкладка `Статус синхронизации` на уровне `Алерты / Компоненты / Прайслисты`.
+- Во вкладке статуса синхронизации отображаются:
+  - пользователь;
+  - версия приложения;
+  - статус (`онлайн` или относительное время последней синхронизации).
+
+## Изменения синхронизации
+
+- Реализован heartbeat синхронизации пользователей в MariaDB: `qt_pricelist_sync_status`.
+- Добавлен API `GET /api/sync/users-status` для UI статуса синхронизации.
+- Логика онлайн-статуса рассчитана от интервала фоновой синхронизации: `5 минут + 10%`.
+- В heartbeat фиксируется версия приложения (`app_version`).
+
+## Важные исправления
+
+- Исправлено восстановление отсутствующей серверной конфигурации при push обновлений.
+- Исправлено экранирование паролей в MySQL DSN в setup.
+- Улучшена логика запуска SQL-миграций на старте при отсутствии прав/необходимости.
+- Обновлена логика пересчета прайслистов через админский price-refresh.
+
+## Миграции и совместимость
+
+Добавлены SQL-миграции:
+
+- `migrations/010_add_pricelist_sync_status.sql`
+- `migrations/011_add_app_version_to_pricelist_sync_status.sql`
+
+Релиз совместим с предыдущей веткой `v1.0.x`; новая таблица синхронизации создается автоматически.
+
+## Коммиты в релизе
+
+- `b1b50ce` Add projects table controls and sync status tab with app version
+- `6ab1e98` sync: recover missing server config during update push
+- `a1d2192` Fix MySQL DSN escaping for setup passwords and clarify DB user setup
+- `a90c07c` update stale files list
+- `e9307c4` Apply remaining pricelist and local-first updates
+- `1b48401` Use admin price-refresh logic for pricelist recalculation
+- `4a86f7b` fix: skip startup sql migrations when not needed or no permissions

web/templates/base.html

@@ -19,7 +19,7 @@
                 <div class="flex items-center space-x-8">
                     <a href="/" class="text-xl font-bold text-blue-600">QuoteForge</a>
                     <div class="hidden md:flex space-x-4">
-                        <a href="/configurator" class="text-gray-600 hover:text-gray-900 px-3 py-2 text-sm">Конфигуратор</a>
+                        <a href="/projects" class="text-gray-600 hover:text-gray-900 px-3 py-2 text-sm">Мои проекты</a>
                         <a id="admin-pricing-link" href="/admin/pricing" class="text-gray-600 hover:text-gray-900 px-3 py-2 text-sm">Администратор цен</a>
                         <a href="/setup" class="text-gray-600 hover:text-gray-900 px-3 py-2 text-sm">Настройки</a>
                     </div>

web/templates/configs.html

@@ -4,7 +4,7 @@
 <div class="space-y-4">
     <h1 class="text-2xl font-bold">Мои конфигурации</h1>
 
-    <div class="mt-4 grid grid-cols-1 sm:grid-cols-2 gap-3">
+    <div id="action-buttons" class="mt-4 grid grid-cols-1 sm:grid-cols-2 gap-3">
         <button onclick="openCreateModal()" class="py-3 bg-blue-600 text-white rounded-lg hover:bg-blue-700 font-medium">
             + Создать новую конфигурацию
         </button>
@@ -13,6 +13,20 @@
         </button>
     </div>
 
+    <div class="mt-4 inline-flex rounded-lg border border-gray-200 overflow-hidden">
+        <button id="status-active-btn" onclick="setConfigStatusMode('active')" class="px-4 py-2 text-sm font-medium bg-blue-600 text-white">
+            Активные
+        </button>
+        <button id="status-archived-btn" onclick="setConfigStatusMode('archived')" class="px-4 py-2 text-sm font-medium bg-white text-gray-700 hover:bg-gray-50 border-l border-gray-200">
+            Архив
+        </button>
+    </div>
+
+    <div class="max-w-md">
+        <input id="configs-search" type="text" placeholder="Поиск квоты по названию"
+               class="w-full px-3 py-2 border rounded focus:ring-2 focus:ring-blue-500 focus:border-blue-500">
+    </div>
+
     <div id="pricelist-badge" class="mt-4 text-sm text-gray-600 hidden">
         <span class="bg-blue-100 text-blue-800 px-2 py-1 rounded-full">
             <svg class="w-4 h-4 inline mr-1" fill="none" stroke="currentColor" viewBox="0 0 24 24">
@@ -47,6 +61,19 @@
                 <input type="text" id="opportunity-number" placeholder="Например: OPP-2024-001"
                        class="w-full px-3 py-2 border rounded focus:ring-2 focus:ring-blue-500 focus:border-blue-500">
             </div>
+            <div>
+                <label class="block text-sm font-medium text-gray-700 mb-1">Проект</label>
+                <input id="create-project-input"
+                       list="create-project-options"
+                       placeholder="Начните вводить название проекта"
+                       class="w-full px-3 py-2 border rounded focus:ring-2 focus:ring-blue-500 focus:border-blue-500">
+                <datalist id="create-project-options"></datalist>
+                <div class="mt-2 flex justify-between items-center gap-3">
+                    <button type="button" onclick="clearCreateProjectInput()" class="text-sm text-gray-600 hover:text-gray-800">
+                        Без проекта
+                    </button>
+                </div>
+            </div>
         </div>
 
         <div class="flex justify-end space-x-3 mt-6">
@@ -110,22 +137,82 @@
     </div>
 </div>
 
+<!-- Modal for moving configuration to another project -->
+<div id="move-project-modal" class="fixed inset-0 bg-black bg-opacity-50 hidden items-center justify-center z-50">
+    <div class="bg-white rounded-lg shadow-xl w-full max-w-md mx-4 p-6">
+        <h2 class="text-xl font-semibold mb-4">Перенести в проект</h2>
+
+        <div class="space-y-4">
+            <div class="text-sm text-gray-600">
+                Квота: <span id="move-project-config-name" class="font-medium text-gray-900"></span>
+            </div>
+            <div>
+                <label class="block text-sm font-medium text-gray-700 mb-1">Проект</label>
+                <input id="move-project-input"
+                       list="move-project-options"
+                       placeholder="Начните вводить название проекта"
+                       class="w-full px-3 py-2 border rounded focus:ring-2 focus:ring-blue-500 focus:border-blue-500">
+                <datalist id="move-project-options"></datalist>
+                <div class="mt-2 flex justify-between items-center gap-3">
+                    <button type="button" onclick="clearMoveProjectInput()" class="text-sm text-gray-600 hover:text-gray-800">
+                        Без проекта
+                    </button>
+                </div>
+                <input type="hidden" id="move-project-uuid">
+            </div>
+        </div>
+
+        <div class="flex justify-end space-x-3 mt-6">
+            <button onclick="closeMoveProjectModal()" class="px-4 py-2 text-gray-600 hover:text-gray-800">
+                Отмена
+            </button>
+            <button onclick="confirmMoveProject()" class="px-4 py-2 bg-blue-600 text-white rounded hover:bg-blue-700">
+                Перенести
+            </button>
+        </div>
+    </div>
+</div>
+
+<!-- Modal for creating project during move -->
+<div id="create-project-on-move-modal" class="fixed inset-0 bg-black bg-opacity-50 hidden items-center justify-center z-50">
+    <div class="bg-white rounded-lg shadow-xl w-full max-w-md mx-4 p-6">
+        <h2 class="text-xl font-semibold mb-3">Проект не найден</h2>
+        <p class="text-sm text-gray-600 mb-4">Проект "<span id="create-project-on-move-name" class="font-medium text-gray-900"></span>" не найден. <span id="create-project-on-move-description">Создать и привязать квоту?</span></p>
+        <div class="flex justify-end space-x-3">
+            <button onclick="closeCreateProjectOnMoveModal()" class="px-4 py-2 text-gray-600 hover:text-gray-800">Отмена</button>
+            <button id="create-project-on-move-confirm-btn" onclick="confirmCreateProjectOnMove()" class="px-4 py-2 bg-blue-600 text-white rounded hover:bg-blue-700">Создать и привязать</button>
+        </div>
+    </div>
+</div>
+
 <script>
 // Pagination state
 let currentPage = 1;
 let totalPages = 1;
 let perPage = 20;
+let configStatusMode = 'active';
+let configsSearch = '';
+let projectsCache = [];
+let projectNameByUUID = {};
+let pendingMoveConfigUUID = '';
+let pendingMoveProjectName = '';
+let pendingCreateConfigName = '';
+let pendingCreateProjectName = '';
 
 function renderConfigs(configs) {
+    const emptyText = configStatusMode === 'archived'
+        ? 'Архив пуст'
+        : 'Нет сохраненных конфигураций';
     if (configs.length === 0) {
         document.getElementById('configs-list').innerHTML =
-            '<div class="bg-white rounded-lg shadow p-8 text-center text-gray-500">Нет сохраненных конфигураций</div>';
+            '<div class="bg-white rounded-lg shadow p-8 text-center text-gray-500">' + emptyText + '</div>';
         return;
     }
 
     let html = '<div class="bg-white rounded-lg shadow overflow-hidden"><table class="w-full">';
     html += '<thead class="bg-gray-50"><tr>';
     html += '<th class="px-4 py-3 text-left text-xs font-medium text-gray-500 uppercase">Дата</th>';
+    html += '<th class="px-4 py-3 text-left text-xs font-medium text-gray-500 uppercase">Проект</th>';
     html += '<th class="px-4 py-3 text-left text-xs font-medium text-gray-500 uppercase">Название</th>';
     html += '<th class="px-4 py-3 text-left text-xs font-medium text-gray-500 uppercase">Автор</th>';
     html += '<th class="px-4 py-3 text-left text-xs font-medium text-gray-500 uppercase">Цена (за 1 шт)</th>';
@@ -139,6 +226,9 @@ function renderConfigs(configs) {
         const total = c.total_price ? '$' + c.total_price.toLocaleString('en-US', {minimumFractionDigits: 2}) : '—';
         const serverCount = c.server_count ? c.server_count : 1;
         const author = c.owner_username || (c.user && c.user.username) || '—';
+        const projectName = c.project_uuid && projectNameByUUID[c.project_uuid]
+            ? projectNameByUUID[c.project_uuid]
+            : 'Без проекта';
 
         // Calculate price per unit (total / server count)
         let pricePerUnit = '—';
@@ -149,27 +239,57 @@ function renderConfigs(configs) {
 
         html += '<tr class="hover:bg-gray-50">';
         html += '<td class="px-4 py-3 text-sm text-gray-500">' + date + '</td>';
-        html += '<td class="px-4 py-3 text-sm font-medium"><a href="/configurator?uuid=' + c.uuid + '" class="text-blue-600 hover:text-blue-800 hover:underline">' + escapeHtml(c.name) + '</a></td>';
+        if (configStatusMode === 'archived') {
+            if (c.project_uuid) {
+                html += '<td class="px-4 py-3 text-sm"><a href="/projects/' + c.project_uuid + '" class="text-blue-600 hover:text-blue-800 hover:underline">' + escapeHtml(projectName) + '</a></td>';
+            } else {
+                html += '<td class="px-4 py-3 text-sm text-gray-500">' + escapeHtml(projectName) + '</td>';
+            }
+        } else {
+            if (c.project_uuid) {
+                html += '<td class="px-4 py-3 text-sm"><a href="/projects/' + c.project_uuid + '" class="text-blue-600 hover:text-blue-800 hover:underline">' + escapeHtml(projectName) + '</a></td>';
+            } else {
+                html += '<td class="px-4 py-3 text-sm text-gray-700">' + escapeHtml(projectName) + '</td>';
+            }
+        }
+        if (configStatusMode === 'archived') {
+            html += '<td class="px-4 py-3 text-sm font-medium text-gray-700">' + escapeHtml(c.name) + '</td>';
+        } else {
+            html += '<td class="px-4 py-3 text-sm font-medium"><a href="/configurator?uuid=' + c.uuid + '" class="text-blue-600 hover:text-blue-800 hover:underline">' + escapeHtml(c.name) + '</a></td>';
+        }
         html += '<td class="px-4 py-3 text-sm text-gray-500">' + escapeHtml(author) + '</td>';
         html += '<td class="px-4 py-3 text-sm text-gray-500">' + pricePerUnit + '</td>';
         html += '<td class="px-4 py-3 text-sm text-gray-500">' + serverCount + '</td>';
         html += '<td class="px-4 py-3 text-sm text-right">' + total + '</td>';
         html += '<td class="px-4 py-3 text-sm text-right space-x-2">';
-        html += '<button onclick="openCloneModal(\'' + c.uuid + '\', \'' + escapeHtml(c.name).replace(/'/g, "\\'") + '\')" class="text-green-600 hover:text-green-800" title="Копировать">';
-        html += '<svg class="w-5 h-5" fill="none" stroke="currentColor" viewBox="0 0 24 24">';
-        html += '<path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M8 16H6a2 2 0 01-2-2V6a2 2 0 012-2h8a2 2 0 012 2v2m-6 12h8a2 2 0 002-2v-8a2 2 0 00-2-2h-8a2 2 0 00-2 2v8a2 2 0 002 2z"></path>';
-        html += '</svg>';
-        html += '</button>';
-        html += '<button onclick="openRenameModal(\'' + c.uuid + '\', \'' + escapeHtml(c.name).replace(/'/g, "\\'") + '\')" class="text-blue-600 hover:text-blue-800" title="Переименовать">';
-        html += '<svg class="w-5 h-5" fill="none" stroke="currentColor" viewBox="0 0 24 24">';
-        html += '<path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M11 5H6a2 2 0 00-2 2v11a2 2 0 002 2h11a2 2 0 002-2v-5m-1.414-9.414a2 2 0 112.828 2.828L11.828 15H9v-2.828l8.586-8.586z"></path>';
-        html += '</svg>';
-        html += '</button>';
-        html += '<button onclick="deleteConfig(\'' + c.uuid + '\')" class="text-red-600 hover:text-red-800" title="Удалить">';
-        html += '<svg class="w-5 h-5" fill="none" stroke="currentColor" viewBox="0 0 24 24">';
-        html += '<path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M19 7l-.867 12.142A2 2 0 0116.138 21H7.862a2 2 0 01-1.995-1.858L5 7m5 4v6m4-6v6m1-10V4a1 1 0 00-1-1h-4a1 1 0 00-1 1v3M4 7h16"></path>';
-        html += '</svg>';
-        html += '</button>';
+        if (configStatusMode === 'archived') {
+            html += '<button onclick="reactivateConfig(\'' + c.uuid + '\')" class="text-emerald-600 hover:text-emerald-800" title="Восстановить">';
+            html += '<svg class="w-5 h-5" fill="none" stroke="currentColor" viewBox="0 0 24 24">';
+            html += '<path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M5 13l4 4L19 7"></path>';
+            html += '</svg>';
+            html += '</button>';
+        } else {
+            html += '<button onclick="openMoveProjectModal(\'' + c.uuid + '\', \'' + escapeHtml(c.name).replace(/'/g, "\\'") + '\', \'' + (c.project_uuid || '') + '\')" class="text-indigo-600 hover:text-indigo-800" title="Перенести в проект">';
+            html += '<svg class="w-5 h-5" fill="none" stroke="currentColor" viewBox="0 0 24 24">';
+            html += '<path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M7 16V4m0 0l-3 3m3-3l3 3m7 1v12m0 0l-3-3m3 3l3-3"></path>';
+            html += '</svg>';
+            html += '</button>';
+            html += '<button onclick="openCloneModal(\'' + c.uuid + '\', \'' + escapeHtml(c.name).replace(/'/g, "\\'") + '\')" class="text-green-600 hover:text-green-800" title="Копировать">';
+            html += '<svg class="w-5 h-5" fill="none" stroke="currentColor" viewBox="0 0 24 24">';
+            html += '<path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M8 16H6a2 2 0 01-2-2V6a2 2 0 012-2h8a2 2 0 012 2v2m-6 12h8a2 2 0 002-2v-8a2 2 0 00-2-2h-8a2 2 0 00-2 2v8a2 2 0 002 2z"></path>';
+            html += '</svg>';
+            html += '</button>';
+            html += '<button onclick="openRenameModal(\'' + c.uuid + '\', \'' + escapeHtml(c.name).replace(/'/g, "\\'") + '\')" class="text-blue-600 hover:text-blue-800" title="Переименовать">';
+            html += '<svg class="w-5 h-5" fill="none" stroke="currentColor" viewBox="0 0 24 24">';
+            html += '<path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M11 5H6a2 2 0 00-2 2v11a2 2 0 002 2h11a2 2 0 002-2v-5m-1.414-9.414a2 2 0 112.828 2.828L11.828 15H9v-2.828l8.586-8.586z"></path>';
+            html += '</svg>';
+            html += '</button>';
+            html += '<button onclick="deleteConfig(\'' + c.uuid + '\')" class="text-red-600 hover:text-red-800" title="В архив">';
+            html += '<svg class="w-5 h-5" fill="none" stroke="currentColor" viewBox="0 0 24 24">';
+            html += '<path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M19 7l-.867 12.142A2 2 0 0116.138 21H7.862a2 2 0 01-1.995-1.858L5 7m5 4v6m4-6v6m1-10V4a1 1 0 00-1-1h-4a1 1 0 00-1 1v3M4 7h16"></path>';
+            html += '</svg>';
+            html += '</button>';
+        }
         html += '</td></tr>';
     });
 
@@ -184,13 +304,25 @@ function escapeHtml(text) {
 }
 
 async function deleteConfig(uuid) {
-    if (!confirm('Удалить?')) return;
+    if (!confirm('Переместить конфигурацию в архив?')) return;
     await fetch('/api/configs/' + uuid, {
         method: 'DELETE'
     });
     loadConfigs();
 }
 
+async function reactivateConfig(uuid) {
+    if (!confirm('Восстановить конфигурацию из архива?')) return;
+    const resp = await fetch('/api/configs/' + uuid + '/reactivate', {
+        method: 'POST'
+    });
+    if (!resp.ok) {
+        alert('Не удалось восстановить конфигурацию');
+        return;
+    }
+    loadConfigs();
+}
+
 function openRenameModal(uuid, currentName) {
     document.getElementById('rename-uuid').value = uuid;
     document.getElementById('rename-input').value = currentName;
@@ -283,6 +415,7 @@ async function cloneConfig() {
 
 function openCreateModal() {
     document.getElementById('opportunity-number').value = '';
+    document.getElementById('create-project-input').value = '';
     document.getElementById('create-modal').classList.remove('hidden');
     document.getElementById('create-modal').classList.add('flex');
     document.getElementById('opportunity-number').focus();
@@ -301,6 +434,25 @@ async function createConfig() {
         return;
     }
 
+    const projectName = document.getElementById('create-project-input').value.trim();
+    let projectUUID = '';
+
+    if (projectName) {
+        const existingProject = projectsCache.find(p => p.is_active && p.name.toLowerCase() === projectName.toLowerCase());
+        if (existingProject) {
+            projectUUID = existingProject.uuid;
+        } else {
+            pendingCreateConfigName = name;
+            pendingCreateProjectName = projectName;
+            openCreateProjectOnCreateModal(projectName);
+            return;
+        }
+    }
+
+    await createConfigWithProject(name, projectUUID);
+}
+
+async function createConfigWithProject(name, projectUUID) {
     try {
         const resp = await fetch('/api/configs', {
             method: 'POST',
@@ -311,20 +463,198 @@ async function createConfig() {
                 name: name,
                 items: [],
                 notes: '',
-                server_count: 1
+                server_count: 1,
+                project_uuid: projectUUID || null
             })
         });
 
+        const config = await resp.json();
         if (!resp.ok) {
-            const err = await resp.json();
-            alert('Ошибка: ' + (err.error || 'Не удалось создать'));
+            alert('Ошибка: ' + (config.error || 'Не удалось создать'));
+            return false;
+        }
+
+        window.location.href = '/configurator?uuid=' + config.uuid;
+        return true;
+    } catch(e) {
+        alert('Ошибка создания конфигурации');
+        return false;
+    }
+}
+
+function openMoveProjectModal(uuid, configName, currentProjectUUID) {
+    document.getElementById('move-project-uuid').value = uuid;
+    document.getElementById('move-project-config-name').textContent = configName;
+
+    const input = document.getElementById('move-project-input');
+    const options = document.getElementById('move-project-options');
+    options.innerHTML = '';
+    projectsCache.forEach(project => {
+        if (!project.is_active) return;
+        const option = document.createElement('option');
+        option.value = project.name;
+        options.appendChild(option);
+    });
+
+    if (currentProjectUUID && projectNameByUUID[currentProjectUUID]) {
+        input.value = projectNameByUUID[currentProjectUUID];
+    } else {
+        input.value = '';
+    }
+
+    document.getElementById('move-project-modal').classList.remove('hidden');
+    document.getElementById('move-project-modal').classList.add('flex');
+}
+
+function closeMoveProjectModal() {
+    document.getElementById('move-project-modal').classList.add('hidden');
+    document.getElementById('move-project-modal').classList.remove('flex');
+}
+
+async function confirmMoveProject() {
+    const uuid = document.getElementById('move-project-uuid').value;
+    const projectName = document.getElementById('move-project-input').value.trim();
+
+    if (!uuid) return;
+    let projectUUID = '';
+
+    if (projectName) {
+        const existingProject = projectsCache.find(p => p.is_active && p.name.toLowerCase() === projectName.toLowerCase());
+        if (existingProject) {
+            projectUUID = existingProject.uuid;
+        } else {
+            pendingMoveConfigUUID = uuid;
+            pendingMoveProjectName = projectName;
+            openCreateProjectOnMoveModal(projectName);
+            return;
+        }
+    }
+
+    await moveConfigToProject(uuid, projectUUID);
+}
+
+function clearMoveProjectInput() {
+    document.getElementById('move-project-input').value = '';
+}
+
+function clearCreateProjectInput() {
+    document.getElementById('create-project-input').value = '';
+}
+
+function openCreateProjectOnMoveModal(projectName) {
+    document.getElementById('create-project-on-move-name').textContent = projectName;
+    document.getElementById('create-project-on-move-description').textContent = 'Создать и привязать квоту?';
+    document.getElementById('create-project-on-move-confirm-btn').textContent = 'Создать и привязать';
+    document.getElementById('create-project-on-move-modal').classList.remove('hidden');
+    document.getElementById('create-project-on-move-modal').classList.add('flex');
+}
+
+function openCreateProjectOnCreateModal(projectName) {
+    document.getElementById('create-project-on-move-name').textContent = projectName;
+    document.getElementById('create-project-on-move-description').textContent = 'Создать и использовать для новой конфигурации?';
+    document.getElementById('create-project-on-move-confirm-btn').textContent = 'Создать и использовать';
+    document.getElementById('create-project-on-move-modal').classList.remove('hidden');
+    document.getElementById('create-project-on-move-modal').classList.add('flex');
+}
+
+function closeCreateProjectOnMoveModal() {
+    document.getElementById('create-project-on-move-modal').classList.add('hidden');
+    document.getElementById('create-project-on-move-modal').classList.remove('flex');
+    pendingMoveConfigUUID = '';
+    pendingMoveProjectName = '';
+    pendingCreateConfigName = '';
+    pendingCreateProjectName = '';
+}
+
+async function confirmCreateProjectOnMove() {
+    if (pendingCreateConfigName && pendingCreateProjectName) {
+        const configName = pendingCreateConfigName;
+        const projectName = pendingCreateProjectName;
+        try {
+            const createResp = await fetch('/api/projects', {
+                method: 'POST',
+                headers: {'Content-Type': 'application/json'},
+                body: JSON.stringify({ name: projectName })
+            });
+            if (!createResp.ok) {
+                const err = await createResp.json();
+                alert('Не удалось создать проект: ' + (err.error || 'ошибка'));
+                return;
+            }
+
+            const newProject = await createResp.json();
+            pendingCreateConfigName = '';
+            pendingCreateProjectName = '';
+            await loadProjectsForConfigUI();
+            const created = await createConfigWithProject(configName, newProject.uuid);
+            if (created) {
+                closeCreateProjectOnMoveModal();
+            } else {
+                closeCreateProjectOnMoveModal();
+                document.getElementById('create-project-input').value = projectName;
+            }
+        } catch (e) {
+            alert('Ошибка создания проекта');
+        }
+        return;
+    }
+
+    const configUUID = pendingMoveConfigUUID;
+    const projectName = pendingMoveProjectName;
+    if (!configUUID || !projectName) {
+        closeCreateProjectOnMoveModal();
+        return;
+    }
+
+    try {
+        const createResp = await fetch('/api/projects', {
+            method: 'POST',
+            headers: {'Content-Type': 'application/json'},
+            body: JSON.stringify({ name: projectName })
+        });
+        if (!createResp.ok) {
+            const err = await createResp.json();
+            alert('Не удалось создать проект: ' + (err.error || 'ошибка'));
             return;
         }
 
-        const config = await resp.json();
-        window.location.href = '/configurator?uuid=' + config.uuid;
-    } catch(e) {
-        alert('Ошибка создания конфигурации');
+        const newProject = await createResp.json();
+        pendingMoveConfigUUID = '';
+        pendingMoveProjectName = '';
+        await loadProjectsForConfigUI();
+        document.getElementById('move-project-input').value = projectName;
+        const moved = await moveConfigToProject(configUUID, newProject.uuid);
+        if (moved) {
+            closeCreateProjectOnMoveModal();
+        } else {
+            closeCreateProjectOnMoveModal();
+        }
+    } catch (e) {
+        alert('Ошибка создания проекта');
+    }
+}
+
+async function moveConfigToProject(uuid, projectUUID) {
+    try {
+        const resp = await fetch('/api/configs/' + uuid + '/project', {
+            method: 'PATCH',
+            headers: {
+                'Content-Type': 'application/json'
+            },
+            body: JSON.stringify({ project_uuid: projectUUID })
+        });
+        if (!resp.ok) {
+            const err = await resp.json();
+            alert('Не удалось перенести квоту: ' + (err.error || 'ошибка'));
+            return false;
+        }
+        closeMoveProjectModal();
+        await loadProjectsForConfigUI();
+        await loadConfigs();
+        return true;
+    } catch (e) {
+        alert('Ошибка переноса квоты');
+        return false;
     }
 }
 
@@ -347,12 +677,26 @@ document.getElementById('clone-modal').addEventListener('click', function(e) {
     }
 });
 
+document.getElementById('move-project-modal').addEventListener('click', function(e) {
+    if (e.target === this) {
+        closeMoveProjectModal();
+    }
+});
+
+document.getElementById('create-project-on-move-modal').addEventListener('click', function(e) {
+    if (e.target === this) {
+        closeCreateProjectOnMoveModal();
+    }
+});
+
 // Close modal on Escape key
 document.addEventListener('keydown', function(e) {
     if (e.key === 'Escape') {
         closeCreateModal();
         closeRenameModal();
         closeCloneModal();
+        closeMoveProjectModal();
+        closeCreateProjectOnMoveModal();
     }
 });
 
@@ -385,18 +729,46 @@ function nextPage() {
 }
 
 function updatePagination(total) {
-    totalPages = Math.ceil(total / perPage);
+    totalPages = Math.max(1, Math.ceil(total / perPage));
     document.getElementById('page-info').textContent =
         'Страница ' + currentPage + ' из ' + totalPages + ' (всего: ' + total + ')';
     document.getElementById('btn-prev').disabled = currentPage <= 1;
     document.getElementById('btn-next').disabled = currentPage >= totalPages;
-    document.getElementById('pagination').classList.remove('hidden');
+    if (total <= perPage) {
+        document.getElementById('pagination').classList.add('hidden');
+    } else {
+        document.getElementById('pagination').classList.remove('hidden');
+    }
+}
+
+function setConfigStatusMode(mode) {
+    if (mode !== 'active' && mode !== 'archived') return;
+    configStatusMode = mode;
+    currentPage = 1;
+    applyStatusModeUI();
+    loadConfigs();
+}
+
+function applyStatusModeUI() {
+    const activeBtn = document.getElementById('status-active-btn');
+    const archivedBtn = document.getElementById('status-archived-btn');
+    const actionButtons = document.getElementById('action-buttons');
+
+    if (configStatusMode === 'archived') {
+        activeBtn.className = 'px-4 py-2 text-sm font-medium bg-white text-gray-700 hover:bg-gray-50';
+        archivedBtn.className = 'px-4 py-2 text-sm font-medium bg-blue-600 text-white border-l border-gray-200';
+        actionButtons.classList.add('hidden');
+    } else {
+        activeBtn.className = 'px-4 py-2 text-sm font-medium bg-blue-600 text-white';
+        archivedBtn.className = 'px-4 py-2 text-sm font-medium bg-white text-gray-700 hover:bg-gray-50 border-l border-gray-200';
+        actionButtons.classList.remove('hidden');
+    }
 }
 
 // Load configs with pagination
 async function loadConfigs() {
     try {
-        const resp = await fetch('/api/configs?page=' + currentPage + '&per_page=' + perPage);
+        const resp = await fetch('/api/configs?page=' + currentPage + '&per_page=' + perPage + '&status=' + configStatusMode + '&search=' + encodeURIComponent(configsSearch));
 
         if (!resp.ok) {
             document.getElementById('configs-list').innerHTML =
@@ -446,12 +818,47 @@ async function importConfigsFromServer() {
 }
 
 document.addEventListener('DOMContentLoaded', function() {
-    loadConfigs();
+    applyStatusModeUI();
+    loadProjectsForConfigUI().then(loadConfigs);
 
     // Load latest pricelist version for badge
     loadLatestPricelistVersion();
 });
 
+document.getElementById('configs-search').addEventListener('input', function(e) {
+    configsSearch = (e.target.value || '').trim();
+    currentPage = 1;
+    loadConfigs();
+});
+
+async function loadProjectsForConfigUI() {
+    projectsCache = [];
+    projectNameByUUID = {};
+    try {
+        const resp = await fetch('/api/projects?status=all');
+        if (!resp.ok) return;
+        const data = await resp.json();
+        projectsCache = (data.projects || []);
+
+        projectsCache.forEach(project => {
+            projectNameByUUID[project.uuid] = project.name;
+        });
+
+        const createOptions = document.getElementById('create-project-options');
+        if (createOptions) {
+            createOptions.innerHTML = '';
+            projectsCache.forEach(project => {
+                if (!project.is_active) return;
+                const option = document.createElement('option');
+                option.value = project.name;
+                createOptions.appendChild(option);
+            });
+        }
+    } catch (e) {
+        // keep default behavior without project selection data
+    }
+}
+
 async function loadLatestPricelistVersion() {
     try {
         const resp = await fetch('/api/pricelists/latest');

web/templates/index.html

@@ -15,8 +15,14 @@
             </h1>
         </div>
         <div id="save-buttons" class="hidden flex items-center space-x-2">
-            <button onclick="refreshPrices()" class="px-4 py-2 bg-blue-600 text-white rounded hover:bg-blue-700">
-                Пересчитать цену
+            <button id="refresh-prices-btn" onclick="refreshPrices()" class="px-4 py-2 bg-blue-600 text-white rounded hover:bg-blue-700">
+                Обновить цены
+            </button>
+            <button type="button"
+                    onclick="openPriceSettingsModal()"
+                    class="h-10 px-3 bg-gray-100 text-gray-700 rounded hover:bg-gray-200 border border-gray-300 inline-flex items-center justify-center"
+                    title="Настройки цен">
+                Цены
             </button>
             <button onclick="saveConfig()" class="px-4 py-2 bg-green-600 text-white rounded hover:bg-green-700">
                 Сохранить
@@ -34,6 +40,10 @@
                        class="w-20 px-3 py-2 border rounded focus:ring-2 focus:ring-blue-500"
                        onchange="updateServerCount()">
             </div>
+            <div class="text-sm text-gray-600">
+                <div class="font-medium text-gray-700 mb-1">Прайслисты цен</div>
+                <div id="pricelist-settings-summary">Estimate: авто, Склад: авто, Конкуренты: авто</div>
+            </div>
             <div class="text-sm text-gray-500">
                 <span id="server-count-info">Всего: <span id="total-server-count">1</span> сервер(а)</span>
             </div>
@@ -78,20 +88,37 @@
     </div>
 
     <!-- Cart summary -->
-    <div id="cart-summary" class="bg-white rounded-lg shadow p-4">
-        <h3 class="font-semibold mb-3">Итого конфигурация</h3>
-        <div id="cart-items" class="space-y-2 mb-4"></div>
-        <div class="border-t pt-3 flex justify-between items-center">
-            <div class="text-lg font-bold">
-                Итого: <span id="cart-total">$0.00</span>
+    <div id="cart-summary" class="bg-white rounded-lg shadow overflow-hidden">
+        <button type="button"
+                onclick="toggleCartSummarySection()"
+                class="w-full px-4 py-3 flex items-center justify-between text-blue-900 bg-gradient-to-r from-blue-100 to-blue-50 hover:from-blue-200 hover:to-blue-100 border-b border-blue-200">
+            <span class="font-semibold">Итого конфигурация</span>
+            <svg id="cart-summary-toggle-icon" class="w-5 h-5 transition-transform duration-200" fill="none" stroke="currentColor" viewBox="0 0 24 24">
+                <path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M19 9l-7 7-7-7"></path>
+            </svg>
+        </button>
+        <div id="cart-summary-content" class="p-4">
+            <div id="cart-items" class="space-y-2 mb-4"></div>
+            <div class="border-t pt-3 flex justify-between items-center">
+                <div class="text-lg font-bold">
+                    Итого: <span id="cart-total">$0.00</span>
+                </div>
+                <button onclick="exportCSV()" class="px-3 py-1 bg-gray-200 text-gray-700 rounded text-sm hover:bg-gray-300">Экспорт CSV</button>
             </div>
-            <button onclick="exportCSV()" class="px-3 py-1 bg-gray-200 text-gray-700 rounded text-sm hover:bg-gray-300">Экспорт CSV</button>
         </div>
     </div>
 
     <!-- Custom price section -->
-    <div id="custom-price-section" class="bg-white rounded-lg shadow p-4">
-        <h3 class="font-semibold mb-3">Своя цена</h3>
+    <div id="custom-price-section" class="bg-white rounded-lg shadow overflow-hidden">
+        <button type="button"
+                onclick="toggleCustomPriceSection()"
+                class="w-full px-4 py-3 flex items-center justify-between text-blue-900 bg-gradient-to-r from-blue-100 to-blue-50 hover:from-blue-200 hover:to-blue-100 border-b border-blue-200">
+            <span class="font-semibold">Своя цена</span>
+            <svg id="custom-price-toggle-icon" class="w-5 h-5 transition-transform duration-200" fill="none" stroke="currentColor" viewBox="0 0 24 24">
+                <path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M19 9l-7 7-7-7"></path>
+            </svg>
+        </button>
+        <div id="custom-price-content" class="p-4">
         <div class="flex items-center gap-4 mb-4">
             <div class="flex-1">
                 <label class="block text-sm text-gray-600 mb-1">Введите целевую цену</label>
@@ -147,6 +174,83 @@
                 </button>
             </div>
         </div>
+        </div>
+    </div>
+
+    <!-- Sale price section -->
+    <div id="sale-price-section" class="bg-white rounded-lg shadow overflow-hidden">
+        <button type="button"
+                onclick="toggleSalePriceSection()"
+                class="w-full px-4 py-3 flex items-center justify-between text-blue-900 bg-gradient-to-r from-blue-100 to-blue-50 hover:from-blue-200 hover:to-blue-100 border-b border-blue-200">
+            <span class="font-semibold">Цена продажи</span>
+            <svg id="sale-price-toggle-icon" class="w-5 h-5 transition-transform duration-200" fill="none" stroke="currentColor" viewBox="0 0 24 24">
+                <path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M19 9l-7 7-7-7"></path>
+            </svg>
+        </button>
+        <div id="sale-price-content" class="p-4">
+        <div id="sale-prices" class="border-t pt-3">
+            <div class="overflow-x-auto">
+                <table class="w-full text-sm">
+                    <thead class="bg-gray-50">
+                        <tr>
+                            <th class="px-3 py-2 text-left text-xs font-medium text-gray-500 uppercase">Артикул</th>
+                            <th class="px-3 py-2 text-right text-xs font-medium text-gray-500 uppercase">Кол-во</th>
+                            <th class="px-3 py-2 text-right text-xs font-medium text-gray-500 uppercase">Est. Price</th>
+                            <th class="px-3 py-2 text-right text-xs font-medium text-gray-500 uppercase">Склад</th>
+                            <th class="px-3 py-2 text-right text-xs font-medium text-gray-500 uppercase">Конкуренты</th>
+                        </tr>
+                    </thead>
+                    <tbody id="sale-prices-body" class="divide-y"></tbody>
+                    <tfoot class="bg-gray-50 font-medium">
+                        <tr>
+                            <td class="px-3 py-2">Итого</td>
+                            <td class="px-3 py-2 text-right">—</td>
+                            <td class="px-3 py-2 text-right" id="sale-total-est">$0.00</td>
+                            <td class="px-3 py-2 text-right" id="sale-total-warehouse">$0.00</td>
+                            <td class="px-3 py-2 text-right" id="sale-total-competitor">$0.00</td>
+                        </tr>
+                    </tfoot>
+                </table>
+            </div>
+        </div>
+        </div>
+    </div>
+</div>
+
+<!-- Price settings modal -->
+<div id="price-settings-modal" class="hidden fixed inset-0 z-50">
+    <div class="absolute inset-0 bg-black/40" onclick="closePriceSettingsModal()"></div>
+    <div class="relative max-w-xl mx-auto mt-24 bg-white rounded-lg shadow-xl border">
+        <div class="px-5 py-4 border-b flex items-center justify-between">
+            <h3 class="text-lg font-semibold text-gray-900">Настройки цен</h3>
+            <button type="button" onclick="closePriceSettingsModal()" class="text-gray-500 hover:text-gray-700">
+                <svg class="w-5 h-5" fill="none" stroke="currentColor" viewBox="0 0 24 24">
+                    <path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M6 18L18 6M6 6l12 12"></path>
+                </svg>
+            </button>
+        </div>
+        <div class="px-5 py-4 space-y-4">
+            <div>
+                <label class="block text-sm font-medium text-gray-700 mb-1">Estimate</label>
+                <select id="settings-pricelist-estimate" class="w-full px-3 py-2 border rounded focus:ring-2 focus:ring-blue-500"></select>
+            </div>
+            <div>
+                <label class="block text-sm font-medium text-gray-700 mb-1">Склад</label>
+                <select id="settings-pricelist-warehouse" class="w-full px-3 py-2 border rounded focus:ring-2 focus:ring-blue-500"></select>
+            </div>
+            <div>
+                <label class="block text-sm font-medium text-gray-700 mb-1">Конкуренты</label>
+                <select id="settings-pricelist-competitor" class="w-full px-3 py-2 border rounded focus:ring-2 focus:ring-blue-500"></select>
+            </div>
+            <label class="flex items-center gap-2 text-sm text-gray-700">
+                <input id="settings-disable-price-refresh" type="checkbox" class="rounded border-gray-300 text-blue-600 focus:ring-blue-500">
+                <span>Не обновлять цены</span>
+            </label>
+        </div>
+        <div class="px-5 py-4 border-t flex justify-end gap-2">
+            <button type="button" onclick="closePriceSettingsModal()" class="px-4 py-2 bg-gray-100 text-gray-700 rounded hover:bg-gray-200">Отмена</button>
+            <button type="button" onclick="applyPriceSettings()" class="px-4 py-2 bg-blue-600 text-white rounded hover:bg-blue-700">Применить</button>
+        </div>
     </div>
 </div>
 
@@ -224,6 +328,18 @@ let cart = [];
 let categoryOrderMap = {}; // Category code -> display_order mapping
 let autoSaveTimeout = null; // Timeout for debounced autosave
 let serverCount = 1; // Server count for the configuration
+let selectedPricelistIds = {
+    estimate: null,
+    warehouse: null,
+    competitor: null
+};
+let disablePriceRefresh = false;
+let activePricelistsBySource = {
+    estimate: [],
+    warehouse: [],
+    competitor: []
+};
+let priceLevelsRequestSeq = 0;
 
 // Autocomplete state
 let autocompleteInput = null;
@@ -232,6 +348,101 @@ let autocompleteMode = null; // 'single', 'multi', 'section'
 let autocompleteIndex = -1;
 let autocompleteFiltered = [];
 
+function getDisplayPrice(item) {
+    if (typeof item.unit_price === 'number' && item.unit_price > 0) {
+        return item.unit_price;
+    }
+    if (typeof item.estimate_price === 'number' && item.estimate_price > 0) {
+        return item.estimate_price;
+    }
+    return 0;
+}
+
+function formatNumberRu(value) {
+    const rounded = Math.round(value);
+    return rounded
+        .toLocaleString('ru-RU', { minimumFractionDigits: 0, maximumFractionDigits: 0 })
+        .replace(/[\u202f\u00a0 ]/g, '\u00A0');
+}
+
+function formatMoney(value) {
+    return '$\u00A0' + formatNumberRu(value);
+}
+
+function formatPriceOrNA(value) {
+    if (typeof value !== 'number' || value <= 0) {
+        return 'N/A';
+    }
+    return formatMoney(value);
+}
+
+function formatDelta(abs, pct) {
+    if (typeof abs !== 'number') {
+        return 'N/A';
+    }
+    const sign = abs > 0 ? '+' : abs < 0 ? '-' : '';
+    const absValue = Math.abs(abs);
+    if (typeof pct !== 'number') {
+        return sign + formatMoney(absValue);
+    }
+    const pctSign = pct > 0 ? '+' : pct < 0 ? '-' : '';
+    return sign + formatMoney(absValue) + ' (' + pctSign + Math.round(Math.abs(pct)) + '%)';
+}
+
+async function refreshPriceLevels() {
+    if (!configUUID || cart.length === 0 || disablePriceRefresh) {
+        return;
+    }
+
+    const seq = ++priceLevelsRequestSeq;
+    try {
+        const payload = {
+            items: cart.map(item => ({
+                lot_name: item.lot_name,
+                quantity: item.quantity
+            })),
+            pricelist_ids: Object.fromEntries(
+                Object.entries(selectedPricelistIds)
+                    .filter(([, id]) => typeof id === 'number' && id > 0)
+            )
+        };
+        const resp = await fetch('/api/quote/price-levels', {
+            method: 'POST',
+            headers: { 'Content-Type': 'application/json' },
+            body: JSON.stringify(payload)
+        });
+        if (!resp.ok) {
+            return;
+        }
+        const data = await resp.json();
+        if (seq !== priceLevelsRequestSeq) {
+            return;
+        }
+        const byLot = new Map((data.items || []).map(i => [i.lot_name, i]));
+        cart = cart.map(item => {
+            const levels = byLot.get(item.lot_name);
+            if (!levels) return item;
+            const next = { ...item, ...levels };
+            if (typeof levels.estimate_price === 'number' && levels.estimate_price > 0) {
+                next.unit_price = levels.estimate_price;
+            }
+            return next;
+        });
+        if (data.resolved_pricelist_ids) {
+            ['estimate', 'warehouse', 'competitor'].forEach(source => {
+                if (!selectedPricelistIds[source] && data.resolved_pricelist_ids[source]) {
+                    selectedPricelistIds[source] = data.resolved_pricelist_ids[source];
+                }
+            });
+            syncPriceSettingsControls();
+            renderPricelistSettingsSummary();
+            persistLocalPriceSettings();
+        }
+    } catch(e) {
+        console.error('Failed to refresh price levels', e);
+    }
+}
+
 // Load categories from API and update tab configuration
 async function loadCategoriesFromAPI() {
     try {
@@ -296,12 +507,16 @@ document.addEventListener('DOMContentLoaded', async function() {
         serverCount = config.server_count || 1;
         document.getElementById('server-count').value = serverCount;
         document.getElementById('total-server-count').textContent = serverCount;
+        selectedPricelistIds.estimate = config.pricelist_id || null;
 
         if (config.items && config.items.length > 0) {
             cart = config.items.map(item => ({
                 lot_name: item.lot_name,
                 quantity: item.quantity,
                 unit_price: item.unit_price,
+                estimate_price: item.unit_price,
+                warehouse_price: null,
+                competitor_price: null,
                 description: item.description || '',
                 category: item.category || getCategoryFromLotName(item.lot_name)
             }));
@@ -322,7 +537,13 @@ document.addEventListener('DOMContentLoaded', async function() {
         return;
     }
 
+    restoreLocalPriceSettings();
+    await loadActivePricelists();
+    syncPriceSettingsControls();
+    renderPricelistSettingsSummary();
+    updateRefreshPricesButtonState();
     await loadAllComponents();
+    await refreshPriceLevels();
     renderTab();
     updateCartUI();
 
@@ -361,6 +582,151 @@ function updateServerCount() {
     triggerAutoSave();
 }
 
+async function loadActivePricelists() {
+    const sources = ['estimate', 'warehouse', 'competitor'];
+    await Promise.all(sources.map(async source => {
+        try {
+            const resp = await fetch(`/api/pricelists?active_only=true&source=${source}&per_page=200`);
+            const data = await resp.json();
+            activePricelistsBySource[source] = data.pricelists || [];
+            const existing = selectedPricelistIds[source];
+            if (existing && activePricelistsBySource[source].some(pl => Number(pl.id) === Number(existing))) {
+                return;
+            }
+            selectedPricelistIds[source] = activePricelistsBySource[source].length > 0
+                ? Number(activePricelistsBySource[source][0].id)
+                : null;
+        } catch (e) {
+            activePricelistsBySource[source] = [];
+            selectedPricelistIds[source] = null;
+        }
+    }));
+}
+
+function renderPricelistSelectOptions(selectId, source) {
+    const select = document.getElementById(selectId);
+    if (!select) return;
+    const pricelists = activePricelistsBySource[source] || [];
+    if (pricelists.length === 0) {
+        select.innerHTML = '<option value="">Нет активных прайслистов</option>';
+        select.value = '';
+        return;
+    }
+    select.innerHTML = `<option value="">Авто (последний активный)</option>` + pricelists.map(pl => {
+        return `<option value="${pl.id}">${escapeHtml(pl.version)}</option>`;
+    }).join('');
+    const current = selectedPricelistIds[source];
+    select.value = current ? String(current) : '';
+}
+
+function syncPriceSettingsControls() {
+    renderPricelistSelectOptions('settings-pricelist-estimate', 'estimate');
+    renderPricelistSelectOptions('settings-pricelist-warehouse', 'warehouse');
+    renderPricelistSelectOptions('settings-pricelist-competitor', 'competitor');
+    const disableCheckbox = document.getElementById('settings-disable-price-refresh');
+    if (disableCheckbox) {
+        disableCheckbox.checked = disablePriceRefresh;
+    }
+}
+
+function getPricelistVersionById(source, id) {
+    const pricelists = activePricelistsBySource[source] || [];
+    const found = pricelists.find(pl => Number(pl.id) === Number(id));
+    return found ? found.version : null;
+}
+
+function renderPricelistSettingsSummary() {
+    const summary = document.getElementById('pricelist-settings-summary');
+    if (!summary) return;
+    const estimate = selectedPricelistIds.estimate ? getPricelistVersionById('estimate', selectedPricelistIds.estimate) || `ID ${selectedPricelistIds.estimate}` : 'авто';
+    const warehouse = selectedPricelistIds.warehouse ? getPricelistVersionById('warehouse', selectedPricelistIds.warehouse) || `ID ${selectedPricelistIds.warehouse}` : 'авто';
+    const competitor = selectedPricelistIds.competitor ? getPricelistVersionById('competitor', selectedPricelistIds.competitor) || `ID ${selectedPricelistIds.competitor}` : 'авто';
+    const refreshState = disablePriceRefresh ? ' | Обновление цен: выкл' : '';
+    summary.textContent = `Estimate: ${estimate}, Склад: ${warehouse}, Конкуренты: ${competitor}${refreshState}`;
+}
+
+function updateRefreshPricesButtonState() {
+    const refreshBtn = document.getElementById('refresh-prices-btn');
+    if (!refreshBtn) return;
+    if (disablePriceRefresh) {
+        refreshBtn.disabled = true;
+        refreshBtn.className = 'px-4 py-2 bg-gray-300 text-gray-500 rounded cursor-not-allowed';
+        refreshBtn.title = 'Обновление цен отключено в настройках';
+    } else {
+        refreshBtn.disabled = false;
+        refreshBtn.className = 'px-4 py-2 bg-blue-600 text-white rounded hover:bg-blue-700';
+        refreshBtn.title = '';
+    }
+}
+
+function getPriceSettingsStorageKey() {
+    return `qf_price_settings_${configUUID || 'default'}`;
+}
+
+function persistLocalPriceSettings() {
+    try {
+        localStorage.setItem(getPriceSettingsStorageKey(), JSON.stringify({
+            pricelist_ids: selectedPricelistIds,
+            disable_price_refresh: disablePriceRefresh
+        }));
+    } catch (e) {
+        // ignore localStorage failures
+    }
+}
+
+function restoreLocalPriceSettings() {
+    try {
+        const raw = localStorage.getItem(getPriceSettingsStorageKey());
+        if (!raw) return;
+        const parsed = JSON.parse(raw);
+        if (parsed && parsed.pricelist_ids) {
+            ['estimate', 'warehouse', 'competitor'].forEach(source => {
+                const next = parseInt(parsed.pricelist_ids[source]);
+                if (Number.isFinite(next) && next > 0) {
+                    selectedPricelistIds[source] = next;
+                }
+            });
+        }
+        disablePriceRefresh = Boolean(parsed?.disable_price_refresh);
+    } catch (e) {
+        // ignore invalid localStorage payload
+    }
+}
+
+async function openPriceSettingsModal() {
+    await loadActivePricelists();
+    syncPriceSettingsControls();
+    renderPricelistSettingsSummary();
+    document.getElementById('price-settings-modal')?.classList.remove('hidden');
+}
+
+function closePriceSettingsModal() {
+    document.getElementById('price-settings-modal')?.classList.add('hidden');
+}
+
+function applyPriceSettings() {
+    const estimateVal = parseInt(document.getElementById('settings-pricelist-estimate')?.value || '');
+    const warehouseVal = parseInt(document.getElementById('settings-pricelist-warehouse')?.value || '');
+    const competitorVal = parseInt(document.getElementById('settings-pricelist-competitor')?.value || '');
+    const disableVal = Boolean(document.getElementById('settings-disable-price-refresh')?.checked);
+
+    selectedPricelistIds.estimate = Number.isFinite(estimateVal) && estimateVal > 0 ? estimateVal : null;
+    selectedPricelistIds.warehouse = Number.isFinite(warehouseVal) && warehouseVal > 0 ? warehouseVal : null;
+    selectedPricelistIds.competitor = Number.isFinite(competitorVal) && competitorVal > 0 ? competitorVal : null;
+    disablePriceRefresh = disableVal;
+
+    updateRefreshPricesButtonState();
+    renderPricelistSettingsSummary();
+    persistLocalPriceSettings();
+    closePriceSettingsModal();
+
+    refreshPriceLevels().then(() => {
+        renderTab();
+        updateCartUI();
+        triggerAutoSave();
+    });
+}
+
 function getCategoryFromLotName(lotName) {
     const parts = lotName.split('_');
     return parts[0] || '';
@@ -433,7 +799,7 @@ function renderSingleSelectTab(categories) {
                     <th class="px-3 py-2 text-left text-xs font-medium text-gray-500 uppercase w-24">Тип</th>
                     <th class="px-3 py-2 text-left text-xs font-medium text-gray-500 uppercase">LOT</th>
                     <th class="px-3 py-2 text-left text-xs font-medium text-gray-500 uppercase">Описание</th>
-                    <th class="px-3 py-2 text-right text-xs font-medium text-gray-500 uppercase w-24">Цена</th>
+                    <th class="px-3 py-2 text-right text-xs font-medium text-gray-500 uppercase w-24">Estimate</th>
                     <th class="px-3 py-2 text-center text-xs font-medium text-gray-500 uppercase w-20">Кол-во</th>
                     <th class="px-3 py-2 text-right text-xs font-medium text-gray-500 uppercase w-28">Стоимость</th>
                     <th class="px-3 py-2 w-10"></th>
@@ -450,8 +816,9 @@ function renderSingleSelectTab(categories) {
 
         const comp = selectedItem ? allComponents.find(c => c.lot_name === selectedItem.lot_name) : null;
         const price = comp?.current_price || 0;
+        const estimate = selectedItem?.estimate_price ?? price;
         const qty = selectedItem?.quantity || 1;
-        const total = price * qty;
+        const total = (selectedItem ? getDisplayPrice(selectedItem) : price) * qty;
 
         html += `
             <tr class="hover:bg-gray-50">
@@ -469,14 +836,14 @@ function renderSingleSelectTab(categories) {
                     </div>
                 </td>
                 <td class="px-3 py-2 text-sm text-gray-500 truncate max-w-xs" id="desc-${cat}">${escapeHtml(comp?.description || '')}</td>
-                <td class="px-3 py-2 text-sm text-right" id="price-${cat}">${price ? '$' + price.toFixed(2) : '—'}</td>
+                <td class="px-3 py-2 text-sm text-right" id="price-${cat}">${formatPriceOrNA(estimate)}</td>
                 <td class="px-3 py-2 text-center">
                     <input type="number" min="1" value="${qty}"
                            id="qty-${cat}"
                            onchange="updateSingleQuantity('${cat}', this.value)"
                            class="w-16 px-2 py-1 border rounded text-center text-sm">
                 </td>
-                <td class="px-3 py-2 text-sm text-right font-medium" id="total-${cat}">${total ? '$' + total.toFixed(2) : '—'}</td>
+                <td class="px-3 py-2 text-sm text-right font-medium" id="total-${cat}">${total ? formatMoney(total) : '—'}</td>
                 <td class="px-3 py-2 text-center">
                     ${selectedItem ? `
                         <button onclick="clearSingleSelect('${cat}')" class="text-red-500 hover:text-red-700">
@@ -508,7 +875,7 @@ function renderMultiSelectTab(components) {
                 <tr>
                     <th class="px-3 py-2 text-left text-xs font-medium text-gray-500 uppercase">LOT</th>
                     <th class="px-3 py-2 text-left text-xs font-medium text-gray-500 uppercase">Описание</th>
-                    <th class="px-3 py-2 text-right text-xs font-medium text-gray-500 uppercase w-24">Цена</th>
+                    <th class="px-3 py-2 text-right text-xs font-medium text-gray-500 uppercase w-24">Estimate</th>
                     <th class="px-3 py-2 text-center text-xs font-medium text-gray-500 uppercase w-20">Кол-во</th>
                     <th class="px-3 py-2 text-right text-xs font-medium text-gray-500 uppercase w-28">Стоимость</th>
                     <th class="px-3 py-2 w-10"></th>
@@ -520,19 +887,19 @@ function renderMultiSelectTab(components) {
     // Render existing cart items for this tab
     tabItems.forEach((item, idx) => {
         const comp = allComponents.find(c => c.lot_name === item.lot_name);
-        const total = item.unit_price * item.quantity;
+        const total = getDisplayPrice(item) * item.quantity;
 
         html += `
             <tr class="hover:bg-gray-50">
                 <td class="px-3 py-2 text-sm font-mono">${escapeHtml(item.lot_name)}</td>
                 <td class="px-3 py-2 text-sm text-gray-500 truncate max-w-xs">${escapeHtml(item.description || comp?.description || '')}</td>
-                <td class="px-3 py-2 text-sm text-right">$${item.unit_price.toFixed(2)}</td>
+                <td class="px-3 py-2 text-sm text-right">${formatPriceOrNA(item.estimate_price ?? item.unit_price)}</td>
                 <td class="px-3 py-2 text-center">
                     <input type="number" min="1" value="${item.quantity}"
                            onchange="updateMultiQuantity('${item.lot_name}', this.value)"
                            class="w-16 px-2 py-1 border rounded text-center text-sm">
                 </td>
-                <td class="px-3 py-2 text-sm text-right font-medium">$${total.toFixed(2)}</td>
+                <td class="px-3 py-2 text-sm text-right font-medium">${formatMoney(total)}</td>
                 <td class="px-3 py-2 text-center">
                     <button onclick="removeFromCart('${item.lot_name}')" class="text-red-500 hover:text-red-700">
                         <svg class="w-4 h-4" fill="none" stroke="currentColor" viewBox="0 0 24 24">
@@ -558,7 +925,7 @@ function renderMultiSelectTab(components) {
                            onkeydown="handleAutocompleteKeyMulti(event)">
                 </div>
             </td>
-            <td class="px-3 py-2 text-sm text-right text-gray-400" id="new-price">—</td>
+            <td class="px-3 py-2 text-sm text-right text-gray-400" id="new-price">N/A</td>
             <td class="px-3 py-2 text-center">
                 <input type="number" min="1" value="1" id="new-qty"
                        class="w-16 px-2 py-1 border rounded text-center text-sm">
@@ -609,7 +976,7 @@ function renderMultiSelectTabWithSections(sections) {
                         <tr>
                             <th class="px-3 py-2 text-left text-xs font-medium text-gray-500 uppercase">LOT</th>
                             <th class="px-3 py-2 text-left text-xs font-medium text-gray-500 uppercase">Описание</th>
-                            <th class="px-3 py-2 text-right text-xs font-medium text-gray-500 uppercase w-24">Цена</th>
+                            <th class="px-3 py-2 text-right text-xs font-medium text-gray-500 uppercase w-24">Estimate</th>
                             <th class="px-3 py-2 text-center text-xs font-medium text-gray-500 uppercase w-20">Кол-во</th>
                             <th class="px-3 py-2 text-right text-xs font-medium text-gray-500 uppercase w-28">Стоимость</th>
                             <th class="px-3 py-2 w-10"></th>
@@ -621,19 +988,19 @@ function renderMultiSelectTabWithSections(sections) {
         // Render existing cart items for this section
         sectionItems.forEach((item) => {
             const comp = allComponents.find(c => c.lot_name === item.lot_name);
-            const total = item.unit_price * item.quantity;
+            const total = getDisplayPrice(item) * item.quantity;
 
             html += `
                 <tr class="hover:bg-gray-50">
                     <td class="px-3 py-2 text-sm font-mono">${escapeHtml(item.lot_name)}</td>
                     <td class="px-3 py-2 text-sm text-gray-500 truncate max-w-xs">${escapeHtml(item.description || comp?.description || '')}</td>
-                    <td class="px-3 py-2 text-sm text-right">$${item.unit_price.toFixed(2)}</td>
+                    <td class="px-3 py-2 text-sm text-right">${formatPriceOrNA(item.estimate_price ?? item.unit_price)}</td>
                     <td class="px-3 py-2 text-center">
                         <input type="number" min="1" value="${item.quantity}"
                                onchange="updateMultiQuantity('${item.lot_name}', this.value)"
                                class="w-16 px-2 py-1 border rounded text-center text-sm">
                     </td>
-                    <td class="px-3 py-2 text-sm text-right font-medium">$${total.toFixed(2)}</td>
+                    <td class="px-3 py-2 text-sm text-right font-medium">${formatMoney(total)}</td>
                     <td class="px-3 py-2 text-center">
                         <button onclick="removeFromCart('${item.lot_name}')" class="text-red-500 hover:text-red-700">
                             <svg class="w-4 h-4" fill="none" stroke="currentColor" viewBox="0 0 24 24">
@@ -662,7 +1029,7 @@ function renderMultiSelectTabWithSections(sections) {
                                onkeydown="handleAutocompleteKeySection(event, '${sectionId}')">
                     </div>
                 </td>
-                <td class="px-3 py-2 text-sm text-right text-gray-400" id="new-price-${sectionId}">—</td>
+                <td class="px-3 py-2 text-sm text-right text-gray-400" id="new-price-${sectionId}">N/A</td>
                 <td class="px-3 py-2 text-center">
                     <input type="number" min="1" value="1" id="new-qty-${sectionId}"
                            class="w-16 px-2 py-1 border rounded text-center text-sm">
@@ -784,14 +1151,26 @@ function selectAutocompleteItem(index) {
         lot_name: comp.lot_name,
         quantity: qty,
         unit_price: comp.current_price,
+        estimate_price: comp.current_price,
+        warehouse_price: null,
+        competitor_price: null,
+        delta_wh_estimate_abs: null,
+        delta_wh_estimate_pct: null,
+        delta_comp_estimate_abs: null,
+        delta_comp_estimate_pct: null,
+        delta_comp_wh_abs: null,
+        delta_comp_wh_pct: null,
+        price_missing: ['warehouse', 'competitor'],
         description: comp.description || '',
         category: getComponentCategory(comp)
     });
 
     hideAutocomplete();
-    renderTab();
-    updateCartUI();
-    triggerAutoSave();
+    refreshPriceLevels().then(() => {
+        renderTab();
+        updateCartUI();
+        triggerAutoSave();
+    });
 }
 
 function hideAutocomplete() {
@@ -864,14 +1243,26 @@ function selectAutocompleteItemMulti(index) {
         lot_name: comp.lot_name,
         quantity: qty,
         unit_price: comp.current_price,
+        estimate_price: comp.current_price,
+        warehouse_price: null,
+        competitor_price: null,
+        delta_wh_estimate_abs: null,
+        delta_wh_estimate_pct: null,
+        delta_comp_estimate_abs: null,
+        delta_comp_estimate_pct: null,
+        delta_comp_wh_abs: null,
+        delta_comp_wh_pct: null,
+        price_missing: ['warehouse', 'competitor'],
         description: comp.description || '',
         category: getComponentCategory(comp)
     });
 
     hideAutocomplete();
-    renderTab();
-    updateCartUI();
-    triggerAutoSave();
+    refreshPriceLevels().then(() => {
+        renderTab();
+        updateCartUI();
+        triggerAutoSave();
+    });
 }
 
 // Autocomplete for sectioned tabs (like storage with RAID and Disks sections)
@@ -951,6 +1342,16 @@ function selectAutocompleteItemSection(index, sectionId) {
         lot_name: comp.lot_name,
         quantity: qty,
         unit_price: comp.current_price,
+        estimate_price: comp.current_price,
+        warehouse_price: null,
+        competitor_price: null,
+        delta_wh_estimate_abs: null,
+        delta_wh_estimate_pct: null,
+        delta_comp_estimate_abs: null,
+        delta_comp_estimate_pct: null,
+        delta_comp_wh_abs: null,
+        delta_comp_wh_pct: null,
+        price_missing: ['warehouse', 'competitor'],
         description: comp.description || '',
         category: getComponentCategory(comp)
     });
@@ -964,9 +1365,11 @@ function selectAutocompleteItemSection(index, sectionId) {
     // Reset quantity to 1
     if (qtyInput) qtyInput.value = '1';
 
-    renderTab();
-    updateCartUI();
-    triggerAutoSave();
+    refreshPriceLevels().then(() => {
+        renderTab();
+        updateCartUI();
+        triggerAutoSave();
+    });
 }
 
 function clearSingleSelect(category) {
@@ -1005,7 +1408,7 @@ function updateMultiQuantity(lotName, value) {
         if (row) {
             const totalCell = row.querySelector('td:nth-child(5)');
             if (totalCell) {
-                totalCell.textContent = '$' + (item.unit_price * item.quantity).toFixed(2);
+                totalCell.textContent = formatMoney(getDisplayPrice(item) * item.quantity);
             }
         }
     }
@@ -1019,11 +1422,12 @@ function removeFromCart(lotName) {
 }
 
 function updateCartUI() {
-    const total = cart.reduce((sum, item) => sum + (item.unit_price * item.quantity), 0);
-    document.getElementById('cart-total').textContent = '$' + total.toLocaleString('en-US', {minimumFractionDigits: 2});
+    const total = cart.reduce((sum, item) => sum + (getDisplayPrice(item) * item.quantity), 0);
+    document.getElementById('cart-total').textContent = formatMoney(total);
 
     // Recalculate custom price section if active
     calculateCustomPrice();
+    renderSalePriceTable();
 
     if (cart.length === 0) {
         document.getElementById('cart-items').innerHTML =
@@ -1067,7 +1471,7 @@ function updateCartUI() {
         html += `<div class="mb-2"><div class="text-xs font-medium text-gray-400 uppercase mb-1">${tabLabel}</div>`;
 
         items.forEach(item => {
-            const itemTotal = item.unit_price * item.quantity;
+            const itemTotal = getDisplayPrice(item) * item.quantity;
             html += `
                 <div class="flex justify-between items-center py-1 text-sm">
                     <div class="flex-1">
@@ -1076,7 +1480,7 @@ function updateCartUI() {
                         <span>${item.quantity}</span>
                     </div>
                     <div class="flex items-center space-x-2">
-                        <span>$${itemTotal.toLocaleString('en-US', {minimumFractionDigits: 2})}</span>
+                        <span>${formatMoney(itemTotal)}</span>
                         <button onclick="removeFromCart('${item.lot_name}')" class="text-red-500 hover:text-red-700">
                             <svg class="w-4 h-4" fill="none" stroke="currentColor" viewBox="0 0 24 24">
                                 <path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M6 18L18 6M6 6l12 12"></path>
@@ -1133,7 +1537,8 @@ async function saveConfig(showNotification = true) {
                 items: cart,
                 custom_price: customPrice,
                 notes: '',
-                server_count: serverCountValue
+                server_count: serverCountValue,
+                pricelist_id: selectedPricelistIds.estimate
             })
         });
 
@@ -1176,12 +1581,143 @@ async function exportCSV() {
     }
 }
 
+function formatLineTotalTooltip(qty, unitPrice) {
+    if (typeof unitPrice !== 'number' || unitPrice <= 0) return '';
+    const lineTotal = qty * unitPrice;
+    return `${formatNumberRu(qty)} * ${formatMoney(unitPrice)} = ${formatMoney(lineTotal)}`;
+}
+
+function toggleSection(contentId, iconId) {
+    const content = document.getElementById(contentId);
+    const icon = document.getElementById(iconId);
+    if (!content || !icon) return;
+
+    const isHidden = content.classList.toggle('hidden');
+    if (isHidden) {
+        icon.classList.add('-rotate-90');
+    } else {
+        icon.classList.remove('-rotate-90');
+    }
+}
+
+function toggleCartSummarySection() {
+    toggleSection('cart-summary-content', 'cart-summary-toggle-icon');
+}
+
+function toggleCustomPriceSection() {
+    toggleSection('custom-price-content', 'custom-price-toggle-icon');
+}
+
+function toggleSalePriceSection() {
+    toggleSection('sale-price-content', 'sale-price-toggle-icon');
+}
+
+function formatDiffPercent(baseTotal, compareTotal, compareLabel) {
+    if (typeof baseTotal !== 'number' || typeof compareTotal !== 'number' || compareTotal <= 0) {
+        return `N/A от ${compareLabel}`;
+    }
+    const pct = ((baseTotal - compareTotal) / compareTotal) * 100;
+    const sign = pct > 0 ? '+' : '';
+    return `${sign}${pct.toFixed(1)}% от ${compareLabel}`;
+}
+
+function getTotalClass(current, references) {
+    const validRefs = references.filter(v => typeof v === 'number' && v > 0);
+    if (typeof current !== 'number' || current <= 0 || validRefs.length === 0) {
+        return 'text-gray-900';
+    }
+    const avg = validRefs.reduce((sum, v) => sum + v, 0) / validRefs.length;
+    if (current < avg) return 'text-green-600';
+    if (current > avg) return 'text-red-600';
+    return 'text-gray-900';
+}
+
+function renderSalePriceTable() {
+    const body = document.getElementById('sale-prices-body');
+    const totalEstEl = document.getElementById('sale-total-est');
+    const totalWarehouseEl = document.getElementById('sale-total-warehouse');
+    const totalCompetitorEl = document.getElementById('sale-total-competitor');
+    if (!body || !totalEstEl || !totalWarehouseEl || !totalCompetitorEl) return;
+
+    if (cart.length === 0) {
+        body.innerHTML = '<tr><td colspan="5" class="px-3 py-3 text-center text-gray-500">Конфигурация пуста</td></tr>';
+        totalEstEl.textContent = '$0.00';
+        totalWarehouseEl.textContent = '$0.00';
+        totalCompetitorEl.textContent = '$0.00';
+        totalEstEl.title = '';
+        totalWarehouseEl.title = '';
+        totalCompetitorEl.title = '';
+        totalEstEl.className = 'px-3 py-2 text-right';
+        totalWarehouseEl.className = 'px-3 py-2 text-right';
+        totalCompetitorEl.className = 'px-3 py-2 text-right';
+        return;
+    }
+
+    const sortedCart = [...cart].sort((a, b) => {
+        const catA = (a.category || getCategoryFromLotName(a.lot_name)).toUpperCase();
+        const catB = (b.category || getCategoryFromLotName(b.lot_name)).toUpperCase();
+        const orderA = categoryOrderMap[catA] || 9999;
+        const orderB = categoryOrderMap[catB] || 9999;
+        return orderA - orderB;
+    });
+
+    let html = '';
+    let totalEstimate = 0;
+    let totalWarehouse = 0;
+    let totalCompetitor = 0;
+
+    sortedCart.forEach(item => {
+        const qty = item.quantity || 1;
+        const estPrice = item.estimate_price;
+        const warehousePrice = item.warehouse_price;
+        const competitorPrice = item.competitor_price;
+
+        if (typeof estPrice === 'number' && estPrice > 0) totalEstimate += estPrice * qty;
+        if (typeof warehousePrice === 'number' && warehousePrice > 0) totalWarehouse += warehousePrice * qty;
+        if (typeof competitorPrice === 'number' && competitorPrice > 0) totalCompetitor += competitorPrice * qty;
+
+        const estTooltip = formatLineTotalTooltip(qty, estPrice);
+        const warehouseTooltip = formatLineTotalTooltip(qty, warehousePrice);
+        const competitorTooltip = formatLineTotalTooltip(qty, competitorPrice);
+
+        html += `
+            <tr>
+                <td class="px-3 py-2 font-mono">${escapeHtml(item.lot_name)}</td>
+                <td class="px-3 py-2 text-right">${qty}</td>
+                <td class="px-3 py-2 text-right" title="${escapeHtml(estTooltip)}">${formatPriceOrNA(estPrice)}</td>
+                <td class="px-3 py-2 text-right" title="${escapeHtml(warehouseTooltip)}">${formatPriceOrNA(warehousePrice)}</td>
+                <td class="px-3 py-2 text-right" title="${escapeHtml(competitorTooltip)}">${formatPriceOrNA(competitorPrice)}</td>
+            </tr>
+        `;
+    });
+
+    body.innerHTML = html;
+
+    totalEstEl.textContent = formatMoney(totalEstimate);
+    totalWarehouseEl.textContent = formatMoney(totalWarehouse);
+    totalCompetitorEl.textContent = formatMoney(totalCompetitor);
+
+    totalEstEl.title =
+        `${formatDiffPercent(totalEstimate, totalWarehouse, 'склад')}\n` +
+        `${formatDiffPercent(totalEstimate, totalCompetitor, 'конкуренты')}`;
+    totalWarehouseEl.title =
+        `${formatDiffPercent(totalWarehouse, totalEstimate, 'est.price')}\n` +
+        `${formatDiffPercent(totalWarehouse, totalCompetitor, 'конкуренты')}`;
+    totalCompetitorEl.title =
+        `${formatDiffPercent(totalCompetitor, totalEstimate, 'est.price')}\n` +
+        `${formatDiffPercent(totalCompetitor, totalWarehouse, 'склад')}`;
+
+    totalEstEl.className = `px-3 py-2 text-right ${getTotalClass(totalEstimate, [totalWarehouse, totalCompetitor])}`;
+    totalWarehouseEl.className = `px-3 py-2 text-right ${getTotalClass(totalWarehouse, [totalEstimate, totalCompetitor])}`;
+    totalCompetitorEl.className = `px-3 py-2 text-right ${getTotalClass(totalCompetitor, [totalEstimate, totalWarehouse])}`;
+}
+
 // Custom price functionality
 function calculateCustomPrice() {
     const customPriceInput = document.getElementById('custom-price-input');
     const customPrice = parseFloat(customPriceInput.value) || 0;
 
-    const originalTotal = cart.reduce((sum, item) => sum + (item.unit_price * item.quantity), 0);
+    const originalTotal = cart.reduce((sum, item) => sum + (getDisplayPrice(item) * item.quantity), 0);
 
     if (customPrice <= 0 || cart.length === 0 || originalTotal <= 0) {
         document.getElementById('adjusted-prices').classList.add('hidden');
@@ -1222,7 +1758,7 @@ function calculateCustomPrice() {
     let totalNew = 0;
 
     sortedCart.forEach(item => {
-        const originalPrice = item.unit_price;
+        const originalPrice = getDisplayPrice(item);
         const newPrice = originalPrice * coefficient;
         const itemOriginalTotal = originalPrice * item.quantity;
         const itemNewTotal = newPrice * item.quantity;
@@ -1234,17 +1770,17 @@ function calculateCustomPrice() {
             <tr>
                 <td class="px-3 py-2 font-mono">${escapeHtml(item.lot_name)}</td>
                 <td class="px-3 py-2 text-right">${item.quantity}</td>
-                <td class="px-3 py-2 text-right text-gray-500">$${originalPrice.toFixed(2)}</td>
-                <td class="px-3 py-2 text-right text-green-600">$${newPrice.toFixed(2)}</td>
-                <td class="px-3 py-2 text-right">$${itemNewTotal.toFixed(2)}</td>
+                <td class="px-3 py-2 text-right text-gray-500">${formatMoney(originalPrice)}</td>
+                <td class="px-3 py-2 text-right text-green-600">${formatMoney(newPrice)}</td>
+                <td class="px-3 py-2 text-right">${formatMoney(itemNewTotal)}</td>
             </tr>
         `;
     });
 
     document.getElementById('adjusted-prices-body').innerHTML = html;
-    document.getElementById('adjusted-total-original').textContent = '$' + totalOriginal.toFixed(2);
-    document.getElementById('adjusted-total-new').textContent = '$' + totalNew.toFixed(2);
-    document.getElementById('adjusted-total-final').textContent = '$' + totalNew.toFixed(2);
+    document.getElementById('adjusted-total-original').textContent = formatMoney(totalOriginal);
+    document.getElementById('adjusted-total-new').textContent = formatMoney(totalNew);
+    document.getElementById('adjusted-total-final').textContent = formatMoney(totalNew);
     document.getElementById('adjusted-prices').classList.remove('hidden');
 }
 
@@ -1259,7 +1795,7 @@ async function exportCSVWithCustomPrice() {
     if (cart.length === 0) return;
 
     const customPrice = parseFloat(document.getElementById('custom-price-input').value) || 0;
-    const originalTotal = cart.reduce((sum, item) => sum + (item.unit_price * item.quantity), 0);
+    const originalTotal = cart.reduce((sum, item) => sum + (getDisplayPrice(item) * item.quantity), 0);
 
     if (customPrice <= 0 || originalTotal <= 0) {
         showToast('Введите целевую цену', 'error');
@@ -1271,7 +1807,7 @@ async function exportCSVWithCustomPrice() {
     // Create adjusted cart
     const adjustedCart = cart.map(item => ({
         ...item,
-        unit_price: parseFloat((item.unit_price * coefficient).toFixed(2))
+        unit_price: parseFloat((getDisplayPrice(item) * coefficient).toFixed(2))
     }));
 
     try {
@@ -1296,6 +1832,10 @@ async function exportCSVWithCustomPrice() {
 async function refreshPrices() {
     // RBAC disabled - no token check required
     if (!configUUID) return;
+    if (disablePriceRefresh) {
+        showToast('Обновление цен отключено в настройках', 'error');
+        return;
+    }
 
     try {
         const resp = await fetch('/api/configs/' + configUUID + '/refresh-prices', {
@@ -1318,6 +1858,9 @@ async function refreshPrices() {
                 lot_name: item.lot_name,
                 quantity: item.quantity,
                 unit_price: item.unit_price,
+                estimate_price: item.unit_price,
+                warehouse_price: null,
+                competitor_price: null,
                 description: item.description || '',
                 category: item.category || getCategoryFromLotName(item.lot_name)
             }));
@@ -1327,8 +1870,18 @@ async function refreshPrices() {
         if (config.price_updated_at) {
             updatePriceUpdateDate(config.price_updated_at);
         }
+        if (config.pricelist_id) {
+            selectedPricelistIds.estimate = config.pricelist_id;
+            if (!activePricelistsBySource.estimate.some(opt => Number(opt.id) === Number(config.pricelist_id))) {
+                await loadActivePricelists();
+            }
+            syncPriceSettingsControls();
+            renderPricelistSettingsSummary();
+            persistLocalPriceSettings();
+        }
 
         // Re-render UI
+        await refreshPriceLevels();
         renderTab();
         updateCartUI();
 

web/templates/pricelist_detail.html

@@ -57,13 +57,15 @@
                     <th class="px-6 py-3 text-left text-xs font-medium text-gray-500 uppercase">Артикул</th>
                     <th class="px-6 py-3 text-left text-xs font-medium text-gray-500 uppercase">Категория</th>
                     <th class="px-6 py-3 text-left text-xs font-medium text-gray-500 uppercase">Описание</th>
+                    <th id="th-qty" class="hidden px-6 py-3 text-right text-xs font-medium text-gray-500 uppercase">Доступно</th>
+                    <th id="th-partnumbers" class="hidden px-6 py-3 text-left text-xs font-medium text-gray-500 uppercase">Partnumbers</th>
                     <th class="px-6 py-3 text-right text-xs font-medium text-gray-500 uppercase">Цена, $</th>
                     <th class="px-6 py-3 text-left text-xs font-medium text-gray-500 uppercase">Настройки</th>
                 </tr>
             </thead>
             <tbody id="items-body" class="bg-white divide-y divide-gray-200">
                 <tr>
-                    <td colspan="5" class="px-6 py-4 text-center text-gray-500">Загрузка...</td>
+                    <td colspan="7" class="px-6 py-4 text-center text-gray-500">Загрузка...</td>
                 </tr>
             </tbody>
         </table>
@@ -80,6 +82,7 @@
     let currentPage = 1;
     let searchQuery = '';
     let searchTimeout = null;
+    let currentSource = '';
 
     async function loadPricelistInfo() {
         try {
@@ -87,6 +90,8 @@
             if (!resp.ok) throw new Error('Pricelist not found');
 
             const pl = await resp.json();
+            currentSource = pl.source || '';
+            toggleWarehouseColumns();
 
             document.getElementById('page-title').textContent = `Прайслист ${pl.version}`;
             document.getElementById('pl-version').textContent = pl.version;
@@ -128,13 +133,15 @@
 
             const resp = await fetch(url);
             const data = await resp.json();
+            currentSource = data.source || currentSource;
+            toggleWarehouseColumns();
 
             renderItems(data.items || []);
             renderItemsPagination(data.total, data.page, data.per_page);
         } catch (e) {
             document.getElementById('items-body').innerHTML = `
                 <tr>
-                    <td colspan="5" class="px-6 py-4 text-center text-red-500">
+                    <td colspan="${itemsColspan()}" class="px-6 py-4 text-center text-red-500">
                         Ошибка загрузки: ${e.message}
                     </td>
                 </tr>
@@ -142,17 +149,40 @@
         }
     }
 
+    function isWarehouseSource() {
+        return (currentSource || '').toLowerCase() === 'warehouse';
+    }
+
+    function itemsColspan() {
+        return isWarehouseSource() ? 7 : 5;
+    }
+
+    function toggleWarehouseColumns() {
+        const visible = isWarehouseSource();
+        document.getElementById('th-qty').classList.toggle('hidden', !visible);
+        document.getElementById('th-partnumbers').classList.toggle('hidden', !visible);
+    }
+
+    function formatQty(qty) {
+        if (typeof qty !== 'number') return '—';
+        if (Number.isInteger(qty)) return qty.toString();
+        return qty.toLocaleString('ru-RU', { minimumFractionDigits: 0, maximumFractionDigits: 3 });
+    }
+
     function formatPriceSettings(item) {
         // Format price settings to match admin pricing interface style
         let settings = [];
         const hasManualPrice = item.manual_price && item.manual_price > 0;
         const hasMeta = item.meta_prices && item.meta_prices.trim() !== '';
+        const method = (item.price_method || '').toLowerCase();
 
         // Method indicator
         if (hasManualPrice) {
             settings.push('<span class="text-orange-600 font-medium">РУЧН</span>');
-        } else if (item.price_method === 'average') {
+        } else if (method === 'average') {
             settings.push('Сред');
+        } else if (method === 'weighted_median') {
+            settings.push('Взвеш. мед');
         } else {
             settings.push('Мед');
         }
@@ -185,7 +215,7 @@
         if (items.length === 0) {
             document.getElementById('items-body').innerHTML = `
                 <tr>
-                    <td colspan="5" class="px-6 py-4 text-center text-gray-500">
+                    <td colspan="${itemsColspan()}" class="px-6 py-4 text-center text-gray-500">
                         ${searchQuery ? 'Ничего не найдено' : 'Позиции не найдены'}
                     </td>
                 </tr>
@@ -193,10 +223,13 @@
             return;
         }
 
+        const showWarehouse = isWarehouseSource();
         const html = items.map(item => {
             const price = item.price.toLocaleString('en-US', { minimumFractionDigits: 2, maximumFractionDigits: 2 });
             const description = item.lot_description || '-';
             const truncatedDesc = description.length > 60 ? description.substring(0, 60) + '...' : description;
+            const qty = formatQty(item.available_qty);
+            const partnumbers = Array.isArray(item.partnumbers) && item.partnumbers.length > 0 ? item.partnumbers.join(', ') : '—';
 
             return `
                 <tr class="hover:bg-gray-50">
@@ -207,6 +240,8 @@
                         <span class="px-2 py-1 text-xs bg-gray-100 rounded">${item.category || '-'}</span>
                     </td>
                     <td class="px-6 py-3 text-sm text-gray-500" title="${description}">${truncatedDesc}</td>
+                    ${showWarehouse ? `<td class="px-6 py-3 whitespace-nowrap text-right font-mono">${qty}</td>` : ''}
+                    ${showWarehouse ? `<td class="px-6 py-3 text-sm text-gray-600" title="${escapeHtml(partnumbers)}">${escapeHtml(partnumbers)}</td>` : ''}
                     <td class="px-6 py-3 whitespace-nowrap text-right font-mono">${price}</td>
                     <td class="px-6 py-3 whitespace-nowrap text-sm"><span class="text-xs bg-gray-100 px-2 py-1 rounded">${formatPriceSettings(item)}</span></td>
                 </tr>

web/templates/project_detail.html

@@ -0,0 +1,501 @@
+{{define "title"}}Проект - QuoteForge{{end}}
+
+{{define "content"}}
+<div class="space-y-4">
+    <div class="flex items-center justify-between gap-3">
+        <div class="flex items-center gap-3">
+            <a href="/projects" class="text-gray-500 hover:text-gray-700" title="Назад к проектам">
+                <svg class="w-5 h-5" fill="none" stroke="currentColor" viewBox="0 0 24 24">
+                    <path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M15 19l-7-7 7-7"></path>
+                </svg>
+            </a>
+            <h1 class="text-2xl font-bold" id="project-title">Проект</h1>
+        </div>
+    </div>
+
+    <div id="action-buttons" class="mt-4 grid grid-cols-1 sm:grid-cols-2 gap-3">
+        <button onclick="openCreateModal()" class="py-3 bg-blue-600 text-white rounded-lg hover:bg-blue-700 font-medium">
+            + Создать новую квоту
+        </button>
+        <button onclick="openImportModal()" class="py-3 bg-indigo-600 text-white rounded-lg hover:bg-indigo-700 font-medium">
+            Импорт квоты
+        </button>
+    </div>
+    <div class="mt-2">
+        <a id="tracker-link" href="https://tracker.yandex.ru/OPS-1933" target="_blank" rel="noopener noreferrer" class="text-sm text-blue-600 hover:text-blue-800 hover:underline">
+            открыть в трекере
+        </a>
+    </div>
+
+    <div class="mt-4 inline-flex rounded-lg border border-gray-200 overflow-hidden">
+        <button id="status-active-btn" onclick="setConfigStatusMode('active')" class="px-4 py-2 text-sm font-medium bg-blue-600 text-white">
+            Активные
+        </button>
+        <button id="status-archived-btn" onclick="setConfigStatusMode('archived')" class="px-4 py-2 text-sm font-medium bg-white text-gray-700 hover:bg-gray-50 border-l border-gray-200">
+            Архив
+        </button>
+    </div>
+
+    <div id="configs-list">
+        <div class="text-center py-8 text-gray-500">Загрузка...</div>
+    </div>
+</div>
+
+<div id="create-modal" class="fixed inset-0 bg-black bg-opacity-50 hidden items-center justify-center z-50">
+    <div class="bg-white rounded-lg shadow-xl w-full max-w-md mx-4 p-6">
+        <h2 class="text-xl font-semibold mb-4">Новая квота в проекте</h2>
+        <div class="space-y-4">
+            <div>
+                <label class="block text-sm font-medium text-gray-700 mb-1">Название квоты</label>
+                <input type="text" id="create-name" placeholder="Например: OPP-2026-001"
+                       class="w-full px-3 py-2 border rounded focus:ring-2 focus:ring-blue-500 focus:border-blue-500">
+            </div>
+        </div>
+        <div class="flex justify-end space-x-3 mt-6">
+            <button onclick="closeCreateModal()" class="px-4 py-2 text-gray-600 hover:text-gray-800">Отмена</button>
+            <button onclick="createConfig()" class="px-4 py-2 bg-blue-600 text-white rounded hover:bg-blue-700">Создать</button>
+        </div>
+    </div>
+</div>
+
+<div id="rename-modal" class="fixed inset-0 bg-black bg-opacity-50 hidden items-center justify-center z-50">
+    <div class="bg-white rounded-lg shadow-xl w-full max-w-md mx-4 p-6">
+        <h2 class="text-xl font-semibold mb-4">Переименовать квоту</h2>
+        <div class="space-y-4">
+            <div>
+                <label class="block text-sm font-medium text-gray-700 mb-1">Новое название</label>
+                <input type="text" id="rename-input"
+                       class="w-full px-3 py-2 border rounded focus:ring-2 focus:ring-blue-500 focus:border-blue-500">
+                <input type="hidden" id="rename-uuid">
+            </div>
+        </div>
+        <div class="flex justify-end space-x-3 mt-6">
+            <button onclick="closeRenameModal()" class="px-4 py-2 text-gray-600 hover:text-gray-800">Отмена</button>
+            <button onclick="renameConfig()" class="px-4 py-2 bg-blue-600 text-white rounded hover:bg-blue-700">Сохранить</button>
+        </div>
+    </div>
+</div>
+
+<div id="clone-modal" class="fixed inset-0 bg-black bg-opacity-50 hidden items-center justify-center z-50">
+    <div class="bg-white rounded-lg shadow-xl w-full max-w-md mx-4 p-6">
+        <h2 class="text-xl font-semibold mb-4">Копировать квоту</h2>
+        <div class="space-y-4">
+            <div>
+                <label class="block text-sm font-medium text-gray-700 mb-1">Название копии</label>
+                <input type="text" id="clone-input"
+                       class="w-full px-3 py-2 border rounded focus:ring-2 focus:ring-blue-500 focus:border-blue-500">
+                <input type="hidden" id="clone-uuid">
+            </div>
+        </div>
+        <div class="flex justify-end space-x-3 mt-6">
+            <button onclick="closeCloneModal()" class="px-4 py-2 text-gray-600 hover:text-gray-800">Отмена</button>
+            <button onclick="cloneConfig()" class="px-4 py-2 bg-green-600 text-white rounded hover:bg-green-700">Копировать</button>
+        </div>
+    </div>
+</div>
+
+<div id="import-modal" class="fixed inset-0 bg-black bg-opacity-50 hidden items-center justify-center z-50">
+    <div class="bg-white rounded-lg shadow-xl w-full max-w-md mx-4 p-6">
+        <h2 class="text-xl font-semibold mb-4">Импорт квоты в проект</h2>
+        <div class="space-y-3">
+            <label class="block text-sm font-medium text-gray-700">Квота</label>
+            <input id="import-config-input"
+                   list="import-config-options"
+                   placeholder="Начните вводить название квоты"
+                   class="w-full px-3 py-2 border rounded focus:ring-2 focus:ring-blue-500 focus:border-blue-500">
+            <datalist id="import-config-options"></datalist>
+            <div class="text-xs text-gray-500">Квота будет перемещена в текущий проект.</div>
+        </div>
+        <div class="flex justify-end gap-2 mt-6">
+            <button onclick="closeImportModal()" class="px-4 py-2 text-gray-600 hover:text-gray-800">Отмена</button>
+            <button onclick="importConfigToProject()" class="px-4 py-2 bg-indigo-600 text-white rounded hover:bg-indigo-700">Импортировать</button>
+        </div>
+    </div>
+</div>
+
+<script>
+const projectUUID = '{{.ProjectUUID}}';
+let configStatusMode = 'active';
+let project = null;
+let allConfigs = [];
+
+function escapeHtml(text) {
+    const div = document.createElement('div');
+    div.textContent = text || '';
+    return div.innerHTML;
+}
+
+function resolveProjectTrackerURL(projectData) {
+    if (!projectData) return '';
+    const explicitURL = (projectData.tracker_url || '').trim();
+    return explicitURL;
+}
+
+function setConfigStatusMode(mode) {
+    if (mode !== 'active' && mode !== 'archived') return;
+    configStatusMode = mode;
+    applyStatusModeUI();
+    loadConfigs();
+}
+
+function applyStatusModeUI() {
+    const activeBtn = document.getElementById('status-active-btn');
+    const archivedBtn = document.getElementById('status-archived-btn');
+    const actionButtons = document.getElementById('action-buttons');
+
+    if (configStatusMode === 'archived') {
+        activeBtn.className = 'px-4 py-2 text-sm font-medium bg-white text-gray-700 hover:bg-gray-50';
+        archivedBtn.className = 'px-4 py-2 text-sm font-medium bg-blue-600 text-white border-l border-gray-200';
+        actionButtons.classList.add('hidden');
+    } else {
+        activeBtn.className = 'px-4 py-2 text-sm font-medium bg-blue-600 text-white';
+        archivedBtn.className = 'px-4 py-2 text-sm font-medium bg-white text-gray-700 hover:bg-gray-50 border-l border-gray-200';
+        actionButtons.classList.remove('hidden');
+    }
+}
+
+function renderConfigs(configs) {
+    const emptyText = configStatusMode === 'archived' ? 'Архив пуст' : 'Нет квот в проекте';
+    if (configs.length === 0) {
+        document.getElementById('configs-list').innerHTML =
+            '<div class="bg-white rounded-lg shadow p-8 text-center text-gray-500">' + emptyText + '</div>';
+        return;
+    }
+
+    let totalSum = 0;
+    let html = '<div class="bg-white rounded-lg shadow overflow-hidden"><table class="w-full">';
+    html += '<thead class="bg-gray-50"><tr>';
+    html += '<th class="px-4 py-3 text-left text-xs font-medium text-gray-500 uppercase">Дата</th>';
+    html += '<th class="px-4 py-3 text-left text-xs font-medium text-gray-500 uppercase">Название</th>';
+    html += '<th class="px-4 py-3 text-left text-xs font-medium text-gray-500 uppercase">Автор</th>';
+    html += '<th class="px-4 py-3 text-left text-xs font-medium text-gray-500 uppercase">Цена (за 1 шт)</th>';
+    html += '<th class="px-4 py-3 text-left text-xs font-medium text-gray-500 uppercase">Кол-во</th>';
+    html += '<th class="px-4 py-3 text-right text-xs font-medium text-gray-500 uppercase">Сумма</th>';
+    html += '<th class="px-4 py-3 text-right text-xs font-medium text-gray-500 uppercase">Действия</th>';
+    html += '</tr></thead><tbody class="divide-y">';
+
+    configs.forEach(c => {
+        const date = new Date(c.created_at).toLocaleDateString('ru-RU');
+        const total = c.total_price || 0;
+        const serverCount = c.server_count || 1;
+        const author = c.owner_username || (c.user && c.user.username) || '—';
+        const unitPrice = serverCount > 0 ? (total / serverCount) : 0;
+        totalSum += total;
+
+        html += '<tr class="hover:bg-gray-50">';
+        html += '<td class="px-4 py-3 text-sm text-gray-500">' + date + '</td>';
+        if (configStatusMode === 'archived') {
+            html += '<td class="px-4 py-3 text-sm font-medium text-gray-700">' + escapeHtml(c.name) + '</td>';
+        } else {
+            html += '<td class="px-4 py-3 text-sm font-medium"><a href="/configurator?uuid=' + c.uuid + '" class="text-blue-600 hover:text-blue-800 hover:underline">' + escapeHtml(c.name) + '</a></td>';
+        }
+        html += '<td class="px-4 py-3 text-sm text-gray-500">' + escapeHtml(author) + '</td>';
+        html += '<td class="px-4 py-3 text-sm text-gray-500">$' + unitPrice.toLocaleString('en-US', {minimumFractionDigits: 2}) + '</td>';
+        html += '<td class="px-4 py-3 text-sm text-gray-500">' + serverCount + '</td>';
+        html += '<td class="px-4 py-3 text-sm text-right">$' + total.toLocaleString('en-US', {minimumFractionDigits: 2}) + '</td>';
+        html += '<td class="px-4 py-3 text-sm text-right space-x-2">';
+        if (configStatusMode === 'archived') {
+            html += '<button onclick="reactivateConfig(\'' + c.uuid + '\')" class="text-emerald-600 hover:text-emerald-800" title="Восстановить">';
+            html += '<svg class="w-5 h-5" fill="none" stroke="currentColor" viewBox="0 0 24 24"><path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M5 13l4 4L19 7"></path></svg></button>';
+        } else {
+            html += '<button onclick="openCloneModal(\'' + c.uuid + '\', \'' + escapeHtml(c.name).replace(/'/g, "\\'") + '\')" class="text-green-600 hover:text-green-800" title="Копировать">';
+            html += '<svg class="w-5 h-5" fill="none" stroke="currentColor" viewBox="0 0 24 24"><path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M8 16H6a2 2 0 01-2-2V6a2 2 0 012-2h8a2 2 0 012 2v2m-6 12h8a2 2 0 002-2v-8a2 2 0 00-2-2h-8a2 2 0 00-2 2v8a2 2 0 002 2z"></path></svg></button>';
+            html += '<button onclick="openRenameModal(\'' + c.uuid + '\', \'' + escapeHtml(c.name).replace(/'/g, "\\'") + '\')" class="text-blue-600 hover:text-blue-800" title="Переименовать">';
+            html += '<svg class="w-5 h-5" fill="none" stroke="currentColor" viewBox="0 0 24 24"><path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M11 5H6a2 2 0 00-2 2v11a2 2 0 002 2h11a2 2 0 002-2v-5m-1.414-9.414a2 2 0 112.828 2.828L11.828 15H9v-2.828l8.586-8.586z"></path></svg></button>';
+            html += '<button onclick="deleteConfig(\'' + c.uuid + '\')" class="text-red-600 hover:text-red-800" title="В архив">';
+            html += '<svg class="w-5 h-5" fill="none" stroke="currentColor" viewBox="0 0 24 24"><path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M19 7l-.867 12.142A2 2 0 0116.138 21H7.862a2 2 0 01-1.995-1.858L5 7m5 4v6m4-6v6m1-10V4a1 1 0 00-1-1h-4a1 1 0 00-1 1v3M4 7h16"></path></svg></button>';
+        }
+        html += '</td></tr>';
+    });
+
+    html += '</tbody>';
+    html += '<tfoot class="bg-gray-50 border-t">';
+    html += '<tr>';
+    html += '<td class="px-4 py-3 text-sm font-medium text-gray-700" colspan="4">Итого по проекту</td>';
+    html += '<td class="px-4 py-3 text-sm text-gray-700">' + configs.length + '</td>';
+    html += '<td class="px-4 py-3 text-sm text-right font-semibold text-gray-900">$' + totalSum.toLocaleString('en-US', {minimumFractionDigits: 2}) + '</td>';
+    html += '<td class="px-4 py-3"></td>';
+    html += '</tr>';
+    html += '</tfoot>';
+    html += '</table></div>';
+    document.getElementById('configs-list').innerHTML = html;
+}
+
+async function loadProject() {
+    const resp = await fetch('/api/projects/' + projectUUID);
+    if (!resp.ok) {
+        document.getElementById('configs-list').innerHTML = '<div class="bg-white rounded-lg shadow p-8 text-center text-red-600">Проект не найден</div>';
+        return false;
+    }
+    project = await resp.json();
+    document.getElementById('project-title').textContent = project.name;
+    const trackerLink = document.getElementById('tracker-link');
+    if (trackerLink) {
+        if (project && project.is_system) {
+            trackerLink.classList.add('hidden');
+            return true;
+        }
+        const trackerURL = resolveProjectTrackerURL(project);
+        if (trackerURL) {
+            trackerLink.href = trackerURL;
+            trackerLink.classList.remove('hidden');
+        } else {
+            trackerLink.classList.add('hidden');
+        }
+    }
+    return true;
+}
+
+async function loadConfigs() {
+    try {
+        const resp = await fetch('/api/projects/' + projectUUID + '/configs?status=' + configStatusMode);
+        if (!resp.ok) {
+            document.getElementById('configs-list').innerHTML =
+                '<div class="bg-white rounded-lg shadow p-8 text-center text-red-600">Ошибка загрузки</div>';
+            return;
+        }
+
+        const data = await resp.json();
+        allConfigs = (data.configurations || []);
+        renderConfigs(allConfigs);
+    } catch (e) {
+        document.getElementById('configs-list').innerHTML =
+            '<div class="bg-white rounded-lg shadow p-8 text-center text-red-600">Ошибка загрузки</div>';
+    }
+}
+
+function openCreateModal() {
+    document.getElementById('create-name').value = '';
+    document.getElementById('create-modal').classList.remove('hidden');
+    document.getElementById('create-modal').classList.add('flex');
+    document.getElementById('create-name').focus();
+}
+
+function closeCreateModal() {
+    document.getElementById('create-modal').classList.add('hidden');
+    document.getElementById('create-modal').classList.remove('flex');
+}
+
+async function createConfig() {
+    const name = document.getElementById('create-name').value.trim();
+    if (!name) {
+        alert('Введите название');
+        return;
+    }
+    const resp = await fetch('/api/projects/' + projectUUID + '/configs', {
+        method: 'POST',
+        headers: {'Content-Type': 'application/json'},
+        body: JSON.stringify({name: name, items: [], notes: '', server_count: 1})
+    });
+    if (!resp.ok) {
+        alert('Не удалось создать квоту');
+        return;
+    }
+    closeCreateModal();
+    loadConfigs();
+}
+
+async function deleteConfig(uuid) {
+    if (!confirm('Переместить квоту в архив?')) return;
+    await fetch('/api/configs/' + uuid, {method: 'DELETE'});
+    loadConfigs();
+}
+
+async function reactivateConfig(uuid) {
+    const resp = await fetch('/api/configs/' + uuid + '/reactivate', {method: 'POST'});
+    if (!resp.ok) {
+        alert('Не удалось восстановить квоту');
+        return;
+    }
+    const moved = await fetch('/api/configs/' + uuid + '/project', {
+        method: 'PATCH',
+        headers: {'Content-Type': 'application/json'},
+        body: JSON.stringify({project_uuid: projectUUID})
+    });
+    if (!moved.ok) {
+        alert('Квота восстановлена, но не удалось вернуть в проект');
+    }
+    loadConfigs();
+}
+
+function openRenameModal(uuid, currentName) {
+    document.getElementById('rename-uuid').value = uuid;
+    document.getElementById('rename-input').value = currentName;
+    document.getElementById('rename-modal').classList.remove('hidden');
+    document.getElementById('rename-modal').classList.add('flex');
+}
+
+function closeRenameModal() {
+    document.getElementById('rename-modal').classList.add('hidden');
+    document.getElementById('rename-modal').classList.remove('flex');
+}
+
+async function renameConfig() {
+    const uuid = document.getElementById('rename-uuid').value;
+    const name = document.getElementById('rename-input').value.trim();
+    if (!name) {
+        alert('Введите название');
+        return;
+    }
+    const resp = await fetch('/api/configs/' + uuid + '/rename', {
+        method: 'PATCH',
+        headers: {'Content-Type': 'application/json'},
+        body: JSON.stringify({name: name})
+    });
+    if (!resp.ok) {
+        alert('Не удалось переименовать');
+        return;
+    }
+    closeRenameModal();
+    loadConfigs();
+}
+
+function openCloneModal(uuid, currentName) {
+    document.getElementById('clone-uuid').value = uuid;
+    document.getElementById('clone-input').value = currentName + ' (копия)';
+    document.getElementById('clone-modal').classList.remove('hidden');
+    document.getElementById('clone-modal').classList.add('flex');
+}
+
+function closeCloneModal() {
+    document.getElementById('clone-modal').classList.add('hidden');
+    document.getElementById('clone-modal').classList.remove('flex');
+}
+
+async function cloneConfig() {
+    const uuid = document.getElementById('clone-uuid').value;
+    const name = document.getElementById('clone-input').value.trim();
+    if (!name) {
+        alert('Введите название');
+        return;
+    }
+    const resp = await fetch('/api/projects/' + projectUUID + '/configs/' + uuid + '/clone', {
+        method: 'POST',
+        headers: {'Content-Type': 'application/json'},
+        body: JSON.stringify({name: name})
+    });
+    if (!resp.ok) {
+        alert('Не удалось скопировать');
+        return;
+    }
+    closeCloneModal();
+    loadConfigs();
+}
+
+function openImportModal() {
+    const activeOther = allConfigs.length ? null : null; // no-op placeholder
+    void activeOther;
+    document.getElementById('import-config-input').value = '';
+    document.getElementById('import-config-options').innerHTML = '';
+    loadImportOptions();
+    document.getElementById('import-modal').classList.remove('hidden');
+    document.getElementById('import-modal').classList.add('flex');
+}
+
+function closeImportModal() {
+    document.getElementById('import-modal').classList.add('hidden');
+    document.getElementById('import-modal').classList.remove('flex');
+}
+
+async function loadImportOptions() {
+    const resp = await fetch('/api/configs?page=1&per_page=500&status=active');
+    if (!resp.ok) return;
+    const data = await resp.json();
+    const options = document.getElementById('import-config-options');
+    options.innerHTML = '';
+    (data.configurations || [])
+        .filter(c => c.project_uuid !== projectUUID)
+        .forEach(c => {
+            const opt = document.createElement('option');
+            opt.value = c.name;
+            options.appendChild(opt);
+        });
+}
+
+async function importConfigToProject() {
+    const query = document.getElementById('import-config-input').value.trim();
+    if (!query) {
+        alert('Выберите квоту');
+        return;
+    }
+    const resp = await fetch('/api/configs?page=1&per_page=500&status=active');
+    if (!resp.ok) {
+        alert('Не удалось загрузить список квот');
+        return;
+    }
+    const data = await resp.json();
+    const sourceConfigs = (data.configurations || []).filter(c => c.project_uuid !== projectUUID);
+
+    let targets = [];
+    if (query.includes('*')) {
+        targets = sourceConfigs.filter(c => wildcardMatch(c.name || '', query));
+    } else {
+        const found = sourceConfigs.find(c => (c.name || '').toLowerCase() === query.toLowerCase());
+        if (found) {
+            targets = [found];
+        }
+    }
+
+    if (!targets.length) {
+        alert('Подходящие квоты не найдены');
+        return;
+    }
+
+    let moved = 0;
+    let failed = 0;
+    for (const cfg of targets) {
+        const move = await fetch('/api/configs/' + cfg.uuid + '/project', {
+            method: 'PATCH',
+            headers: {'Content-Type': 'application/json'},
+            body: JSON.stringify({project_uuid: projectUUID})
+        });
+        if (move.ok) {
+            moved++;
+        } else {
+            failed++;
+        }
+    }
+
+    if (!moved) {
+        alert('Не удалось импортировать квоты');
+        return;
+    }
+
+    closeImportModal();
+    await loadConfigs();
+    if (targets.length > 1 || failed > 0) {
+        alert('Импорт завершен: перенесено ' + moved + ', ошибок ' + failed);
+    }
+}
+
+function wildcardMatch(value, pattern) {
+    const escaped = pattern
+        .replace(/[.+^${}()|[\]\\]/g, '\\$&')
+        .replace(/\*/g, '.*');
+    const regex = new RegExp('^' + escaped + '$', 'i');
+    return regex.test(value);
+}
+
+document.getElementById('create-modal').addEventListener('click', function(e) { if (e.target === this) closeCreateModal(); });
+document.getElementById('rename-modal').addEventListener('click', function(e) { if (e.target === this) closeRenameModal(); });
+document.getElementById('clone-modal').addEventListener('click', function(e) { if (e.target === this) closeCloneModal(); });
+document.getElementById('import-modal').addEventListener('click', function(e) { if (e.target === this) closeImportModal(); });
+document.addEventListener('keydown', function(e) {
+    if (e.key === 'Escape') {
+        closeCreateModal();
+        closeRenameModal();
+        closeCloneModal();
+        closeImportModal();
+    }
+});
+
+document.addEventListener('DOMContentLoaded', async function() {
+    applyStatusModeUI();
+    const ok = await loadProject();
+    if (!ok) return;
+    await loadConfigs();
+});
+</script>
+{{end}}
+
+{{template "base" .}}

web/templates/projects.html

@@ -0,0 +1,426 @@
+{{define "title"}}Мои проекты - QuoteForge{{end}}
+
+{{define "content"}}
+<div class="space-y-4">
+    <div class="flex flex-wrap items-center justify-between gap-3">
+        <h1 class="text-2xl font-bold">Мои проекты</h1>
+        <div class="flex items-center gap-2">
+            <a href="/configs" class="px-4 py-2 bg-gray-200 text-gray-800 rounded hover:bg-gray-300">
+                Все конфигурации
+            </a>
+            <button onclick="openCreateProjectModal()" class="px-4 py-2 bg-blue-600 text-white rounded hover:bg-blue-700">
+                + Новый проект
+            </button>
+        </div>
+    </div>
+
+    <div class="inline-flex rounded-lg border border-gray-200 overflow-hidden">
+        <button id="status-active-btn" onclick="setStatus('active')" class="px-4 py-2 text-sm font-medium bg-blue-600 text-white">Активные</button>
+        <button id="status-archived-btn" onclick="setStatus('archived')" class="px-4 py-2 text-sm font-medium bg-white text-gray-700 hover:bg-gray-50 border-l border-gray-200">Архив</button>
+    </div>
+
+    <div class="max-w-md">
+        <input id="projects-search" type="text" placeholder="Поиск проекта по названию"
+               class="w-full px-3 py-2 border rounded focus:ring-2 focus:ring-blue-500 focus:border-blue-500">
+    </div>
+
+    <div id="projects-table" class="bg-white rounded-lg shadow p-4 text-gray-500">Загрузка...</div>
+</div>
+
+<div id="create-project-modal" class="fixed inset-0 bg-black bg-opacity-50 hidden items-center justify-center z-50">
+    <div class="bg-white rounded-lg shadow-xl w-full max-w-md mx-4 p-6">
+        <h2 class="text-xl font-semibold mb-4">Новый проект</h2>
+        <div class="space-y-4">
+            <div>
+                <label for="create-project-code" class="block text-sm font-medium text-gray-700 mb-1">Код проекта</label>
+                <input id="create-project-code" type="text" placeholder="Например: OPS-123"
+                       class="w-full px-3 py-2 border rounded focus:ring-2 focus:ring-blue-500 focus:border-blue-500">
+            </div>
+            <div>
+                <label for="create-project-tracker-url" class="block text-sm font-medium text-gray-700 mb-1">Ссылка на трекер</label>
+                <input id="create-project-tracker-url" type="url" placeholder="https://tracker.yandex.ru/OPS-123"
+                       class="w-full px-3 py-2 border rounded focus:ring-2 focus:ring-blue-500 focus:border-blue-500">
+            </div>
+        </div>
+        <div class="flex justify-end gap-2 mt-6">
+            <button type="button" onclick="closeCreateProjectModal()" class="px-4 py-2 text-gray-600 hover:text-gray-800">Отмена</button>
+            <button type="button" onclick="createProject()" class="px-4 py-2 bg-blue-600 text-white rounded hover:bg-blue-700">Создать</button>
+        </div>
+    </div>
+</div>
+
+<script>
+let status = 'active';
+let projectsSearch = '';
+let authorSearch = '';
+let currentPage = 1;
+let perPage = 10;
+let sortField = 'created_at';
+let sortDir = 'desc';
+let createProjectTrackerManuallyEdited = false;
+let createProjectLastAutoTrackerURL = '';
+
+const trackerBaseURL = 'https://tracker.yandex.ru/';
+
+function escapeHtml(text) {
+    const div = document.createElement('div');
+    div.textContent = text || '';
+    return div.innerHTML;
+}
+
+function formatMoney(v) {
+    return '$' + (v || 0).toLocaleString('en-US', {minimumFractionDigits: 2});
+}
+
+function formatDateTime(value) {
+    if (!value) return '—';
+    const date = new Date(value);
+    if (Number.isNaN(date.getTime())) return '—';
+    return date.toLocaleString('ru-RU', {
+        year: 'numeric',
+        month: '2-digit',
+        day: '2-digit',
+        hour: '2-digit',
+        minute: '2-digit'
+    });
+}
+
+function toggleSort(field) {
+    if (sortField === field) {
+        sortDir = sortDir === 'asc' ? 'desc' : 'asc';
+    } else {
+        sortField = field;
+        sortDir = field === 'name' ? 'asc' : 'desc';
+    }
+    currentPage = 1;
+    loadProjects();
+}
+
+function setStatus(value) {
+    status = value;
+    currentPage = 1;
+    document.getElementById('status-active-btn').className = value === 'active'
+        ? 'px-4 py-2 text-sm font-medium bg-blue-600 text-white'
+        : 'px-4 py-2 text-sm font-medium bg-white text-gray-700 hover:bg-gray-50';
+    document.getElementById('status-archived-btn').className = value === 'archived'
+        ? 'px-4 py-2 text-sm font-medium bg-blue-600 text-white border-l border-gray-200'
+        : 'px-4 py-2 text-sm font-medium bg-white text-gray-700 hover:bg-gray-50 border-l border-gray-200';
+    loadProjects();
+}
+
+async function loadProjects() {
+    const root = document.getElementById('projects-table');
+    root.innerHTML = '<div class="text-gray-500">Загрузка...</div>';
+
+    let rows = [];
+    let total = 0;
+    let totalPages = 0;
+    let page = currentPage;
+    try {
+        const params = new URLSearchParams({
+            status: status,
+            search: projectsSearch,
+            author: authorSearch,
+            page: String(currentPage),
+            per_page: String(perPage),
+            sort: sortField,
+            dir: sortDir
+        });
+        const resp = await fetch('/api/projects?' + params.toString());
+        if (!resp.ok) {
+            throw new Error('HTTP ' + resp.status);
+        }
+        const data = await resp.json();
+        rows = data.projects || [];
+        total = data.total || 0;
+        totalPages = data.total_pages || 0;
+        page = data.page || currentPage;
+        currentPage = page;
+    } catch (e) {
+        root.innerHTML = '<div class="text-red-600">Ошибка загрузки проектов: ' + escapeHtml(String(e.message || e)) + '</div>';
+        return;
+    }
+
+    let html = '<div class="overflow-x-auto"><table class="w-full">';
+    html += '<thead class="bg-gray-50">';
+    html += '<tr>';
+    html += '<th class="px-4 py-3 text-left text-xs font-medium text-gray-500 uppercase">';
+    html += '<button type="button" onclick="toggleSort(\'name\')" class="inline-flex items-center gap-1 hover:text-gray-700">Название проекта';
+    if (sortField === 'name') {
+        html += sortDir === 'asc' ? ' <span>↑</span>' : ' <span>↓</span>';
+    }
+    html += '</button></th>';
+    html += '<th class="px-4 py-3 text-left text-xs font-medium text-gray-500 uppercase">Автор</th>';
+    html += '<th class="px-4 py-3 text-left text-xs font-medium text-gray-500 uppercase">';
+    html += '<button type="button" onclick="toggleSort(\'created_at\')" class="inline-flex items-center gap-1 hover:text-gray-700">Создан';
+    if (sortField === 'created_at') {
+        html += sortDir === 'asc' ? ' <span>↑</span>' : ' <span>↓</span>';
+    }
+    html += '</button></th>';
+    html += '<th class="px-4 py-3 text-right text-xs font-medium text-gray-500 uppercase">Кол-во квот</th>';
+    html += '<th class="px-4 py-3 text-right text-xs font-medium text-gray-500 uppercase">Сумма</th>';
+    html += '<th class="px-4 py-3 text-right text-xs font-medium text-gray-500 uppercase">Действия</th>';
+    html += '</tr>';
+    html += '<tr>';
+    html += '<th class="px-4 py-2"></th>';
+    html += '<th class="px-4 py-2"><input id="projects-author-filter" type="text" value="' + escapeHtml(authorSearch) + '" placeholder="Фильтр автора" class="w-full px-2 py-1 border rounded text-xs focus:ring-1 focus:ring-blue-500 focus:border-blue-500"></th>';
+    html += '<th class="px-4 py-2"></th>';
+    html += '<th class="px-4 py-2"></th>';
+    html += '<th class="px-4 py-2"></th>';
+    html += '<th class="px-4 py-2"></th>';
+    html += '</tr>';
+    html += '</thead><tbody class="divide-y">';
+
+    if (!rows.length) {
+        html += '<tr><td colspan="6" class="px-4 py-6 text-sm text-gray-500 text-center">Проектов нет</td></tr>';
+    }
+
+    rows.forEach(p => {
+        html += '<tr class="hover:bg-gray-50">';
+        html += '<td class="px-4 py-3 text-sm font-medium"><a class="text-blue-600 hover:underline" href="/projects/' + p.uuid + '">' + escapeHtml(p.name) + '</a></td>';
+        html += '<td class="px-4 py-3 text-sm text-gray-600">' + escapeHtml(p.owner_username || '—') + '</td>';
+        html += '<td class="px-4 py-3 text-sm text-gray-600">' + escapeHtml(formatDateTime(p.created_at)) + '</td>';
+        html += '<td class="px-4 py-3 text-sm text-right text-gray-700">' + (p.config_count || 0) + '</td>';
+        html += '<td class="px-4 py-3 text-sm text-right text-gray-700">' + formatMoney(p.total) + '</td>';
+        html += '<td class="px-4 py-3 text-sm text-right"><div class="inline-flex items-center gap-2">';
+
+        if (p.is_active) {
+            html += '<button onclick="copyProject(\'' + p.uuid + '\', \'' + escapeHtml(p.name).replace(/'/g, "\\'") + '\')" class="text-green-700 hover:text-green-900" title="Копировать">';
+            html += '<svg class="w-5 h-5" fill="none" stroke="currentColor" viewBox="0 0 24 24"><path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M8 16H6a2 2 0 01-2-2V6a2 2 0 012-2h8a2 2 0 012 2v2m-6 12h8a2 2 0 002-2v-8a2 2 0 00-2-2h-8a2 2 0 00-2 2v8a2 2 0 002 2z"></path></svg>';
+            html += '</button>';
+
+            html += '<button onclick="renameProject(\'' + p.uuid + '\', \'' + escapeHtml(p.name).replace(/'/g, "\\'") + '\')" class="text-blue-700 hover:text-blue-900" title="Переименовать">';
+            html += '<svg class="w-5 h-5" fill="none" stroke="currentColor" viewBox="0 0 24 24"><path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M11 5H6a2 2 0 00-2 2v11a2 2 0 002 2h11a2 2 0 002-2v-5m-1.414-9.414a2 2 0 112.828 2.828L11.828 15H9v-2.828l8.586-8.586z"></path></svg>';
+            html += '</button>';
+
+            html += '<button onclick="archiveProject(\'' + p.uuid + '\')" class="text-red-700 hover:text-red-900" title="Удалить (в архив)">';
+            html += '<svg class="w-5 h-5" fill="none" stroke="currentColor" viewBox="0 0 24 24"><path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M19 7l-.867 12.142A2 2 0 0116.138 21H7.862a2 2 0 01-1.995-1.858L5 7m5 4v6m4-6v6m1-10V4a1 1 0 00-1-1h-4a1 1 0 00-1 1v3M4 7h16"></path></svg>';
+            html += '</button>';
+
+            html += '<button onclick="addConfigToProject(\'' + p.uuid + '\')" class="text-indigo-700 hover:text-indigo-900" title="Добавить квоту">';
+            html += '<svg class="w-5 h-5" fill="none" stroke="currentColor" viewBox="0 0 24 24"><path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M12 4v16m8-8H4"></path></svg>';
+            html += '</button>';
+        } else {
+            html += '<button onclick="reactivateProject(\'' + p.uuid + '\')" class="text-emerald-700 hover:text-emerald-900" title="Восстановить">';
+            html += '<svg class="w-5 h-5" fill="none" stroke="currentColor" viewBox="0 0 24 24"><path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M5 13l4 4L19 7"></path></svg>';
+            html += '</button>';
+        }
+        html += '</div></td>';
+        html += '</tr>';
+    });
+
+    html += '</tbody></table></div>';
+
+    if (totalPages > 1) {
+        html += '<div class="flex items-center justify-between mt-4 pt-4 border-t">';
+        html += '<div class="text-sm text-gray-600">Показано ' + rows.length + ' из ' + total + '</div>';
+        html += '<div class="inline-flex items-center gap-1">';
+        html += '<button type="button" onclick="goToPage(' + (page - 1) + ')" ' + (page <= 1 ? 'disabled' : '') + ' class="px-3 py-1 text-sm border rounded ' + (page <= 1 ? 'text-gray-300 border-gray-200 cursor-not-allowed' : 'text-gray-700 hover:bg-gray-50') + '">&larr;</button>';
+        const startPage = Math.max(1, page - 2);
+        const endPage = Math.min(totalPages, page + 2);
+        for (let i = startPage; i <= endPage; i++) {
+            html += '<button type="button" onclick="goToPage(' + i + ')" class="px-3 py-1 text-sm border rounded ' + (i === page ? 'bg-blue-600 text-white border-blue-600' : 'text-gray-700 border-gray-300 hover:bg-gray-50') + '">' + i + '</button>';
+        }
+        html += '<button type="button" onclick="goToPage(' + (page + 1) + ')" ' + (page >= totalPages ? 'disabled' : '') + ' class="px-3 py-1 text-sm border rounded ' + (page >= totalPages ? 'text-gray-300 border-gray-200 cursor-not-allowed' : 'text-gray-700 hover:bg-gray-50') + '">&rarr;</button>';
+        html += '</div>';
+        html += '</div>';
+    }
+
+    root.innerHTML = html;
+
+    const authorInput = document.getElementById('projects-author-filter');
+    if (authorInput) {
+        authorInput.addEventListener('input', function(e) {
+            authorSearch = (e.target.value || '').trim();
+            currentPage = 1;
+            loadProjects();
+        });
+    }
+}
+
+function goToPage(page) {
+    if (page < 1) return;
+    currentPage = page;
+    loadProjects();
+}
+
+function buildTrackerURLFromProjectCode(projectCode) {
+    const code = (projectCode || '').trim();
+    if (!code) return '';
+    return trackerBaseURL + encodeURIComponent(code);
+}
+
+function openCreateProjectModal() {
+    const codeInput = document.getElementById('create-project-code');
+    const trackerInput = document.getElementById('create-project-tracker-url');
+    codeInput.value = '';
+    trackerInput.value = '';
+    createProjectTrackerManuallyEdited = false;
+    createProjectLastAutoTrackerURL = '';
+    document.getElementById('create-project-modal').classList.remove('hidden');
+    document.getElementById('create-project-modal').classList.add('flex');
+    codeInput.focus();
+}
+
+function closeCreateProjectModal() {
+    document.getElementById('create-project-modal').classList.add('hidden');
+    document.getElementById('create-project-modal').classList.remove('flex');
+}
+
+function updateCreateProjectTrackerURL() {
+    const codeInput = document.getElementById('create-project-code');
+    const trackerInput = document.getElementById('create-project-tracker-url');
+    const generatedURL = buildTrackerURLFromProjectCode(codeInput.value);
+    if (!createProjectTrackerManuallyEdited || trackerInput.value.trim() === '' || trackerInput.value === createProjectLastAutoTrackerURL) {
+        trackerInput.value = generatedURL;
+        createProjectLastAutoTrackerURL = generatedURL;
+    }
+}
+
+async function createProject() {
+    const codeInput = document.getElementById('create-project-code');
+    const trackerInput = document.getElementById('create-project-tracker-url');
+    const name = (codeInput.value || '').trim();
+    if (!name) {
+        alert('Введите код проекта');
+        return;
+    }
+    const resp = await fetch('/api/projects', {
+        method: 'POST',
+        headers: {'Content-Type': 'application/json'},
+        body: JSON.stringify({
+            name: name,
+            tracker_url: (trackerInput.value || '').trim()
+        })
+    });
+    if (!resp.ok) {
+        alert('Не удалось создать проект');
+        return;
+    }
+    closeCreateProjectModal();
+    loadProjects();
+}
+
+async function renameProject(projectUUID, currentName) {
+    const name = prompt('Новое название проекта', currentName);
+    if (!name || !name.trim() || name.trim() === currentName) return;
+    const resp = await fetch('/api/projects/' + projectUUID, {
+        method: 'PUT',
+        headers: {'Content-Type': 'application/json'},
+        body: JSON.stringify({name: name.trim()})
+    });
+    if (!resp.ok) {
+        alert('Не удалось переименовать проект');
+        return;
+    }
+    loadProjects();
+}
+
+async function archiveProject(projectUUID) {
+    if (!confirm('Переместить проект в архив?')) return;
+    const resp = await fetch('/api/projects/' + projectUUID + '/archive', {method: 'POST'});
+    if (!resp.ok) {
+        alert('Не удалось архивировать проект');
+        return;
+    }
+    loadProjects();
+}
+
+async function reactivateProject(projectUUID) {
+    const resp = await fetch('/api/projects/' + projectUUID + '/reactivate', {method: 'POST'});
+    if (!resp.ok) {
+        alert('Не удалось восстановить проект');
+        return;
+    }
+    loadProjects();
+}
+
+async function addConfigToProject(projectUUID) {
+    const name = prompt('Название новой квоты');
+    if (!name || !name.trim()) return;
+    const resp = await fetch('/api/projects/' + projectUUID + '/configs', {
+        method: 'POST',
+        headers: {'Content-Type': 'application/json'},
+        body: JSON.stringify({name: name.trim(), items: [], notes: '', server_count: 1})
+    });
+    if (!resp.ok) {
+        alert('Не удалось создать квоту');
+        return;
+    }
+    loadProjects();
+}
+
+async function copyProject(projectUUID, projectName) {
+    const newName = prompt('Название копии проекта', projectName + ' (копия)');
+    if (!newName || !newName.trim()) return;
+
+    const createResp = await fetch('/api/projects', {
+        method: 'POST',
+        headers: {'Content-Type': 'application/json'},
+        body: JSON.stringify({name: newName.trim()})
+    });
+    if (!createResp.ok) {
+        alert('Не удалось создать копию проекта');
+        return;
+    }
+    const newProject = await createResp.json();
+
+    const listResp = await fetch('/api/projects/' + projectUUID + '/configs');
+    if (!listResp.ok) {
+        alert('Проект скопирован без квот (не удалось загрузить исходные квоты)');
+        loadProjects();
+        return;
+    }
+    const listData = await listResp.json();
+    const configs = listData.configurations || [];
+
+    for (const cfg of configs) {
+        await fetch('/api/projects/' + newProject.uuid + '/configs/' + cfg.uuid + '/clone', {
+            method: 'POST',
+            headers: {'Content-Type': 'application/json'},
+            body: JSON.stringify({name: cfg.name})
+        });
+    }
+
+    loadProjects();
+}
+
+loadProjects();
+
+document.getElementById('projects-search').addEventListener('input', function(e) {
+    projectsSearch = (e.target.value || '').trim();
+    currentPage = 1;
+    loadProjects();
+});
+
+document.getElementById('create-project-code').addEventListener('input', function() {
+    updateCreateProjectTrackerURL();
+});
+
+document.getElementById('create-project-tracker-url').addEventListener('input', function(e) {
+    createProjectTrackerManuallyEdited = (e.target.value || '').trim() !== createProjectLastAutoTrackerURL;
+});
+
+document.getElementById('create-project-code').addEventListener('keydown', function(e) {
+    if (e.key === 'Enter') {
+        e.preventDefault();
+        createProject();
+    }
+});
+
+document.getElementById('create-project-tracker-url').addEventListener('keydown', function(e) {
+    if (e.key === 'Enter') {
+        e.preventDefault();
+        createProject();
+    }
+});
+
+document.getElementById('create-project-modal').addEventListener('click', function(e) {
+    if (e.target === this) {
+        closeCreateProjectModal();
+    }
+});
+</script>
+{{end}}
+
+{{template "base" .}}