chore: обновить submodule bible до последнего коммита

Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>

bible-local/02-architecture.md

@@ -40,14 +40,25 @@ Readiness guard:
 
 ## Pricing contract
 
-Prices come only from `local_pricelist_items`.
+`local_pricelist_items` is the single source of truth for both prices and component catalog (lot_name + lot_category). There is no separate component catalog table.
 
 Rules:
-- `local_components` is metadata-only;
-- quote calculation must not read prices from components;
+- `local_components` table has been removed; do not recreate it;
+- component list for the configurator autocomplete comes from `local_pricelist_items` via `ListComponents`;
+- quote calculation reads prices from `local_pricelist_items` only;
 - latest pricelist selection ignores snapshots without items;
 - auto pricelist mode stays auto and must not be persisted as an explicit resolved ID.
 
+## lot_name case handling
+
+lot_names in `local_pricelist_items` may be stored in mixed case in databases synced before normalization was enforced. `NormalizeLotName` (uppercase + trim) is applied at sync time via `PricelistItemToLocal`, but existing rows are not retroactively updated.
+
+Rules:
+- all SQLite queries that filter by `lot_name` must use `UPPER(lot_name) IN ?` or `UPPER(lot_name) = ?` with an uppercased input — never a bare `=` or `IN` on a string that may have been sourced from user input or a legacy row;
+- result map keys must preserve the original case passed by the caller (build a `uppercase → original` index before the query);
+- `GetLocalPricesForLots` is the canonical pattern: it uppercases the input list, queries with `UPPER(lot_name) IN ?`, and returns keys that match the input lot_names;
+- frontend JS must never infer a component category from the lot_name prefix; `lot_category` from `local_pricelist_items` is the only valid source; items without a category fall into the "Other" tab.
+
 ## Pricing tab layout
 
 The Pricing tab (Ценообразование) has two tables: Buy (Цена покупки) and Sale (Цена продажи).
@@ -133,7 +144,7 @@ full contract and JSON schemas.
 | `required_categories` | Per-config-type badge on tabs with unfilled required categories |
 
 Rules:
-- sync runs after `SyncComponents`; failure is non-fatal (Warn log only);
+- sync runs as part of the pricelist pull; failure is non-fatal (Warn log only);
 - `local_qt_settings` is a read-only cache — never written by user actions;
 - absent or unparseable settings: QF uses hardcoded fallbacks for that key only;
 - `config_types[].categories` is an allowlist: a category absent from all types is shown everywhere;

bible-local/03-database.md

@@ -8,9 +8,8 @@ Main tables:
 
 | Table | Purpose |
 | --- | --- |
-| `local_components` | synced component metadata |
 | `local_pricelists` | local pricelist headers |
-| `local_pricelist_items` | local pricelist rows, the only runtime price source |
+| `local_pricelist_items` | pricelist rows; the only runtime source of prices and component catalog |
 | `local_projects` | user projects |
 | `local_configurations` | user configurations |
 | `local_configuration_versions` | immutable revision snapshots |
@@ -25,8 +24,10 @@ Main tables:
 Rules:
 - cache tables may be rebuilt if local migration recovery requires it;
 - user-authored tables must not be dropped as a recovery shortcut;
-- `local_pricelist_items` is the only valid runtime source of prices;
-- configuration `items` and `vendor_spec` are stored as JSON payloads inside configuration rows.
+- `local_pricelist_items` is the only valid runtime source of prices and component catalog; do not add a separate component cache table;
+- `local_pricelist_items.lot_category` is the single source of a LOT's category at runtime (populated by sync from `qt_pricelist_items.lot_category`); do not derive category from a lot_name prefix or from `qt_categories`/`qt_lot_metadata`;
+- configuration `items` and `vendor_spec` are stored as JSON payloads inside configuration rows;
+- `local_components` table has been removed; any reference to it is dead code.
 
 ## MariaDB
 
@@ -35,8 +36,6 @@ MariaDB is the central sync database (`RFQ_LOG`). Final schema as of 2026-04-15.
 ### QuoteForge tables (qt_*)
 
 Runtime read:
-- `qt_categories` — pricelist categories (note: `name`/`name_ru` columns being removed; QF does not use them)
-- `qt_lot_metadata` — component metadata, price settings
 - `qt_pricelists` — pricelist headers (source: estimate / warehouse / competitor)
 - `qt_pricelist_items` — pricelist rows
 - `qt_partnumber_books` — partnumber book headers
@@ -53,6 +52,8 @@ Insert-only tracking:
 - `qt_vendor_partnumber_seen` — vendor partnumbers encountered during sync; `lot_suggestion` column updated when user manually maps PN → LOT in vendor-spec UI
 
 Server-side only (not queried by client runtime):
+- `qt_categories` — pricelist category registry; QF runtime serves category lists for the UI from `models.DefaultCategories` (Go) overlaid with categories present in `local_pricelist_items`, not from this table. `name`/`name_ru` columns being removed.
+- `qt_lot_metadata` — component metadata / price settings; the Go server-side component/category management layer (`ComponentRepository`, `CategoryRepository`, `ComponentService`) was removed — no client code reads this table
 - `qt_component_usage_stats` — aggregated component popularity stats (written by server jobs)
 - `qt_pricing_alerts` — price anomaly alerts (models exist in Go; feature disabled in runtime)
 - `qt_schema_migrations` — server migration history (applied via `go run ./cmd/qfs -migrate`)

cmd/qfs/main.go

@@ -168,6 +168,13 @@ func main() {
 	// Create connection manager. Runtime stays local-first; MariaDB is used on demand by sync/setup only.
 	connMgr := db.NewConnectionManager(local)
 
+	// Keep the online-status cache fresh in the background so request-handling
+	// goroutines (health checks, middleware, etc.) never block on the MySQL
+	// dial/read timeout themselves.
+	connMgrCtx, connMgrCancel := context.WithCancel(context.Background())
+	defer connMgrCancel()
+	connMgr.Start(connMgrCtx)
+
 	dbUser := local.GetDBUser()
 
 	slog.Info("starting QuoteForge server",
@@ -272,6 +279,8 @@ func main() {
 	syncWorker.Stop()
 	workerCancel()
 	backupCancel()
+	connMgr.Stop()
+	connMgrCancel()
 
 	// Then shutdown HTTP server
 	ctx, cancel := context.WithTimeout(context.Background(), 10*time.Second)
@@ -677,8 +686,7 @@ func setupRouter(cfg *config.Config, local *localdb.LocalDB, connMgr *db.Connect
 	var projectService *services.ProjectService
 
 	syncService = sync.NewService(connMgr, local)
-	componentService := services.NewComponentService(nil, nil)
-	quoteService := services.NewQuoteService(nil, nil, local, nil)
+	quoteService := services.NewQuoteService(nil, local)
 	exportService := services.NewExportService(cfg.Export, local)
 
 	// isOnline function for local-first architecture
@@ -775,7 +783,7 @@ func setupRouter(cfg *config.Config, local *localdb.LocalDB, connMgr *db.Connect
 	templatesPath := filepath.Join("web", "templates")
 
 	// Handlers
-	componentHandler := handlers.NewComponentHandler(componentService, local)
+	componentHandler := handlers.NewComponentHandler(local)
 	quoteHandler := handlers.NewQuoteHandler(quoteService)
 	exportHandler := handlers.NewExportHandler(exportService, configService, projectService, dbUsername)
 	pricelistHandler := handlers.NewPricelistHandler(local)
@@ -997,8 +1005,27 @@ func setupRouter(cfg *config.Config, local *localdb.LocalDB, connMgr *db.Connect
 					return
 				}
 
+				uuids := make([]string, len(cfgs))
+				for i, cfg := range cfgs {
+					uuids[i] = cfg.UUID
+				}
+				viewers, _ := syncService.ListActiveViewersByConfigUUIDs(uuids)
+
+				type cfgRow struct {
+					models.Configuration
+					Viewers []string `json:"viewers"`
+				}
+				rows := make([]cfgRow, len(cfgs))
+				for i, cfg := range cfgs {
+					v := viewers[cfg.UUID]
+					if v == nil {
+						v = []string{}
+					}
+					rows[i] = cfgRow{Configuration: cfg, Viewers: v}
+				}
+
 				c.JSON(http.StatusOK, gin.H{
-					"configurations": cfgs,
+					"configurations": rows,
 					"total":          total,
 					"page":           page,
 					"per_page":       perPage,
@@ -1333,6 +1360,16 @@ func setupRouter(cfg *config.Config, local *localdb.LocalDB, connMgr *db.Connect
 				}
 				c.JSON(http.StatusOK, config)
 			})
+
+			configs.POST("/:uuid/presence", func(c *gin.Context) {
+				_ = local.AddOpenConfigUUID(c.Param("uuid"))
+				c.JSON(http.StatusOK, gin.H{"ok": true})
+			})
+
+			configs.DELETE("/:uuid/presence", func(c *gin.Context) {
+				_ = local.RemoveOpenConfigUUID(c.Param("uuid"))
+				c.JSON(http.StatusOK, gin.H{"ok": true})
+			})
 		}
 
 		projects := api.Group("/projects")
@@ -1673,8 +1710,32 @@ func setupRouter(cfg *config.Config, local *localdb.LocalDB, connMgr *db.Connect
 					}
 					return
 				}
+
+				projUUIDs := make([]string, len(result.Configs))
+				for i, cfg := range result.Configs {
+					projUUIDs[i] = cfg.UUID
+				}
+				projViewers, _ := syncService.ListActiveViewersByConfigUUIDs(projUUIDs)
+
+				type projCfgRow struct {
+					models.Configuration
+					Viewers []string `json:"viewers"`
+				}
+				projRows := make([]projCfgRow, len(result.Configs))
+				for i, cfg := range result.Configs {
+					v := projViewers[cfg.UUID]
+					if v == nil {
+						v = []string{}
+					}
+					projRows[i] = projCfgRow{Configuration: cfg, Viewers: v}
+				}
+
 				c.Header("X-Config-Status", status)
-				c.JSON(http.StatusOK, result)
+				c.JSON(http.StatusOK, gin.H{
+					"project_uuid":   result.ProjectUUID,
+					"configurations": projRows,
+					"total":          result.Total,
+				})
 			})
 
 			projects.PATCH("/:uuid/configs/reorder", func(c *gin.Context) {

internal/article/categories.go

@@ -1,31 +1,12 @@
 package article
 
 import (
-	"errors"
 	"fmt"
 	"strings"
 
 	"git.mchus.pro/mchus/quoteforge/internal/localdb"
 )
 
-// ErrMissingCategoryForLot is returned when a lot has no category in local_pricelist_items.lot_category.
-var ErrMissingCategoryForLot = errors.New("missing_category_for_lot")
-
-type MissingCategoryForLotError struct {
-	LotName string
-}
-
-func (e *MissingCategoryForLotError) Error() string {
-	if e == nil || strings.TrimSpace(e.LotName) == "" {
-		return ErrMissingCategoryForLot.Error()
-	}
-	return fmt.Sprintf("%s: %s", ErrMissingCategoryForLot.Error(), e.LotName)
-}
-
-func (e *MissingCategoryForLotError) Unwrap() error {
-	return ErrMissingCategoryForLot
-}
-
 type Group string
 
 const (
@@ -61,9 +42,10 @@ func GroupForLotCategory(cat string) (group Group, ok bool) {
 	}
 }
 
-// ResolveLotCategoriesStrict resolves categories for lotNames using local_pricelist_items.lot_category
-// for a given server pricelist id. If any lot is missing or has empty category, returns an error.
-func ResolveLotCategoriesStrict(local *localdb.LocalDB, serverPricelistID uint, lotNames []string) (map[string]string, error) {
+// ResolveLotCategories returns lot_category for each lotName found in local_pricelist_items
+// for the given server pricelist. Lots not found in the pricelist are omitted from the result —
+// callers must treat a missing key as "no category" and skip that lot.
+func ResolveLotCategories(local *localdb.LocalDB, serverPricelistID uint, lotNames []string) (map[string]string, error) {
 	if local == nil {
 		return nil, fmt.Errorf("local db is nil")
 	}
@@ -71,30 +53,8 @@ func ResolveLotCategoriesStrict(local *localdb.LocalDB, serverPricelistID uint,
 	if err != nil {
 		return nil, err
 	}
-	missing := make([]string, 0)
-	for _, lot := range lotNames {
-		cat := strings.TrimSpace(cats[lot])
-		if cat == "" {
-			missing = append(missing, lot)
-			continue
-		}
-		cats[lot] = cat
-	}
-	if len(missing) > 0 {
-		fallback, err := local.GetLocalComponentCategoriesByLotNames(missing)
-		if err != nil {
-			return nil, err
-		}
-		for _, lot := range missing {
-			if cat := strings.TrimSpace(fallback[lot]); cat != "" {
-				cats[lot] = cat
-			}
-		}
-		for _, lot := range missing {
-			if strings.TrimSpace(cats[lot]) == "" {
-				return nil, &MissingCategoryForLotError{LotName: lot}
-			}
-		}
+	for lot, cat := range cats {
+		cats[lot] = strings.TrimSpace(cat)
 	}
 	return cats, nil
 }

internal/article/categories_test.go

@@ -1,7 +1,6 @@
 package article
 
 import (
-	"errors"
 	"path/filepath"
 	"testing"
 	"time"
@@ -9,7 +8,7 @@ import (
 	"git.mchus.pro/mchus/quoteforge/internal/localdb"
 )
 
-func TestResolveLotCategoriesStrict_MissingCategoryReturnsError(t *testing.T) {
+func TestResolveLotCategories_MissingLotOmitted(t *testing.T) {
 	local, err := localdb.New(filepath.Join(t.TempDir(), "local.db"))
 	if err != nil {
 		t.Fatalf("init local db: %v", err)
@@ -36,73 +35,60 @@ func TestResolveLotCategoriesStrict_MissingCategoryReturnsError(t *testing.T) {
 		t.Fatalf("save local items: %v", err)
 	}
 
-	_, err = ResolveLotCategoriesStrict(local, 1, []string{"CPU_A"})
-	if err == nil {
-		t.Fatalf("expected error")
+	cats, err := ResolveLotCategories(local, 1, []string{"CPU_A", "UNKNOWN"})
+	if err != nil {
+		t.Fatalf("unexpected error: %v", err)
 	}
-	if !errors.Is(err, ErrMissingCategoryForLot) {
-		t.Fatalf("expected ErrMissingCategoryForLot, got %v", err)
+	if cats["CPU_A"] != "" {
+		t.Fatalf("expected empty category for lot with blank lot_category, got %q", cats["CPU_A"])
+	}
+	if _, ok := cats["UNKNOWN"]; ok {
+		t.Fatalf("expected UNKNOWN lot to be omitted from result")
 	}
 }
 
-func TestResolveLotCategoriesStrict_FallbackToLatestPricelist(t *testing.T) {
+func TestResolveLotCategories_ReturnsKnownCategories(t *testing.T) {
 	local, err := localdb.New(filepath.Join(t.TempDir(), "local.db"))
 	if err != nil {
 		t.Fatalf("init local db: %v", err)
 	}
 	t.Cleanup(func() { _ = local.Close() })
 
-	// Older pricelist used by the configuration — CPU_B has no category here
 	if err := local.SaveLocalPricelist(&localdb.LocalPricelist{
-		ServerID:  2,
+		ServerID:  1,
 		Source:    "estimate",
-		Version:   "S-2026-02-11-002",
-		Name:      "old",
-		IsActive:  false,
-		CreatedAt: time.Now().Add(-time.Hour),
-		SyncedAt:  time.Now().Add(-time.Hour),
-	}); err != nil {
-		t.Fatalf("save old pricelist: %v", err)
-	}
-	oldPL, err := local.GetLocalPricelistByServerID(2)
-	if err != nil {
-		t.Fatalf("get old pricelist: %v", err)
-	}
-	if err := local.SaveLocalPricelistItems([]localdb.LocalPricelistItem{
-		{PricelistID: oldPL.ID, LotName: "CPU_B", LotCategory: "", Price: 10},
-	}); err != nil {
-		t.Fatalf("save old pricelist items: %v", err)
-	}
-
-	// Newer active pricelist — CPU_B has category set
-	if err := local.SaveLocalPricelist(&localdb.LocalPricelist{
-		ServerID:  3,
-		Source:    "estimate",
-		Version:   "S-2026-02-11-003",
-		Name:      "latest",
+		Version:   "S-2026-02-11-001",
+		Name:      "test",
 		IsActive:  true,
 		CreatedAt: time.Now(),
 		SyncedAt:  time.Now(),
 	}); err != nil {
-		t.Fatalf("save latest pricelist: %v", err)
+		t.Fatalf("save pricelist: %v", err)
 	}
-	latestPL, err := local.GetLocalPricelistByServerID(3)
+	pl, err := local.GetLocalPricelistByServerID(1)
 	if err != nil {
-		t.Fatalf("get latest pricelist: %v", err)
+		t.Fatalf("get pricelist: %v", err)
 	}
 	if err := local.SaveLocalPricelistItems([]localdb.LocalPricelistItem{
-		{PricelistID: latestPL.ID, LotName: "CPU_B", LotCategory: "CPU", Price: 10},
+		{PricelistID: pl.ID, LotName: "CPU_B", LotCategory: "CPU", Price: 10},
+		{PricelistID: pl.ID, LotName: "MB_X", LotCategory: "MB", Price: 5},
 	}); err != nil {
-		t.Fatalf("save latest pricelist items: %v", err)
+		t.Fatalf("save items: %v", err)
 	}
 
-	cats, err := ResolveLotCategoriesStrict(local, 2, []string{"CPU_B"})
+	cats, err := ResolveLotCategories(local, 1, []string{"CPU_B", "MB_X", "NOT_IN_PL"})
 	if err != nil {
-		t.Fatalf("expected fallback, got error: %v", err)
+		t.Fatalf("unexpected error: %v", err)
 	}
 	if cats["CPU_B"] != "CPU" {
 		t.Fatalf("expected CPU, got %q", cats["CPU_B"])
 	}
+	if cats["MB_X"] != "MB" {
+		t.Fatalf("expected MB, got %q", cats["MB_X"])
+	}
+	if _, ok := cats["NOT_IN_PL"]; ok {
+		t.Fatalf("expected NOT_IN_PL to be omitted")
+	}
 }
 
 func TestGroupForLotCategory(t *testing.T) {

internal/article/generator.go

@@ -55,7 +55,7 @@ func Build(local *localdb.LocalDB, items []models.ConfigItem, opts BuildOptions)
 		return BuildResult{}, fmt.Errorf("pricelist_id required for article")
 	}
 
-	cats, err := ResolveLotCategoriesStrict(local, *opts.ServerPricelist, lotNames)
+	cats, err := ResolveLotCategories(local, *opts.ServerPricelist, lotNames)
 	if err != nil {
 		return BuildResult{}, err
 	}

internal/db/connection.go

@@ -17,6 +17,11 @@ const (
 	defaultPingInterval      = 30 * time.Second
 	defaultReconnectCooldown = 10 * time.Second
 
+	// defaultStatusCheckInterval controls how often the background prober
+	// re-checks connectivity to keep IsOnline() cheap. Request-handling
+	// goroutines must never pay the MySQL dial/read timeout themselves.
+	defaultStatusCheckInterval = 15 * time.Second
+
 	maxOpenConns    = 10
 	maxIdleConns    = 2
 	connMaxLifetime = 5 * time.Minute
@@ -33,86 +38,148 @@ type ConnectionStatus struct {
 // ConnectionManager manages database connections with thread-safety and connection pooling
 type ConnectionManager struct {
 	localDB           *localdb.LocalDB // for getting DSN from settings
-	mu                sync.RWMutex     // protects db and state
+	mu                sync.RWMutex     // protects db/lastError/lastCheck only — never held during network I/O
+	connMu            sync.Mutex       // serializes actual dial/ping attempts; held *instead of* mu during network I/O
 	db                *gorm.DB         // current connection (nil if not connected)
 	lastError         error            // last connection error
 	lastCheck         time.Time        // time of last check/attempt
 	connectTimeout    time.Duration    // timeout for connection (default: 5s)
 	pingInterval      time.Duration    // minimum interval between pings (default: 30s)
 	reconnectCooldown time.Duration    // pause after failed attempt (default: 10s)
+
+	statusCheckInterval time.Duration // background prober cadence (default: 15s)
+	stopStatusLoop      chan struct{} // closed by Stop() to end the background loop
 }
 
 // NewConnectionManager creates a new ConnectionManager instance
 func NewConnectionManager(localDB *localdb.LocalDB) *ConnectionManager {
 	return &ConnectionManager{
-		localDB:           localDB,
-		connectTimeout:    defaultConnectTimeout,
-		pingInterval:      defaultPingInterval,
-		reconnectCooldown: defaultReconnectCooldown,
-		db:                nil,
-		lastError:         nil,
-		lastCheck:         time.Time{},
+		localDB:             localDB,
+		connectTimeout:      defaultConnectTimeout,
+		pingInterval:        defaultPingInterval,
+		reconnectCooldown:   defaultReconnectCooldown,
+		statusCheckInterval: defaultStatusCheckInterval,
+		db:                  nil,
+		lastError:           nil,
+		lastCheck:           time.Time{},
 	}
 }
 
-// GetDB returns the current database connection, establishing it if needed
-// Thread-safe and respects connection cooldowns
+// Start launches a background goroutine that keeps the online-status cache
+// fresh, so that IsOnline() (called from request-handling middleware) never
+// blocks on network I/O itself. Returns immediately — the app must be able
+// to serve the local-first UI right away, before connectivity is even known.
+// Until the first background check completes, IsOnline() reports offline
+// (the safe default). Stop via ctx cancellation or Stop().
+func (cm *ConnectionManager) Start(ctx context.Context) {
+	cm.mu.Lock()
+	if cm.stopStatusLoop == nil {
+		cm.stopStatusLoop = make(chan struct{})
+	}
+	stopCh := cm.stopStatusLoop
+	cm.mu.Unlock()
+
+	go func() {
+		// Prime the cache in the background; the dial/read timeout must not
+		// delay server startup.
+		cm.checkOnlineNow()
+
+		ticker := time.NewTicker(cm.statusCheckInterval)
+		defer ticker.Stop()
+		for {
+			select {
+			case <-ctx.Done():
+				return
+			case <-stopCh:
+				return
+			case <-ticker.C:
+				cm.checkOnlineNow()
+			}
+		}
+	}()
+}
+
+// Stop ends the background status-refresh loop started by Start.
+func (cm *ConnectionManager) Stop() {
+	cm.mu.Lock()
+	defer cm.mu.Unlock()
+	if cm.stopStatusLoop != nil {
+		close(cm.stopStatusLoop)
+		cm.stopStatusLoop = nil
+	}
+}
+
+// GetDB returns the current database connection, establishing it if needed.
+// Thread-safe and respects connection cooldowns. The actual network I/O
+// (dial/ping) never runs while holding cm.mu, so concurrent readers of the
+// cached status (IsOnline, GetStatus) are never blocked by an in-flight
+// connection attempt — only concurrent GetDB/checkOnlineNow callers are
+// serialized against each other, via connMu.
 func (cm *ConnectionManager) GetDB() (*gorm.DB, error) {
 	// Handle case where localDB is nil
 	if cm.localDB == nil {
 		return nil, fmt.Errorf("local database not initialized")
 	}
 
-	// First check if we already have a valid connection
-	cm.mu.RLock()
-	if cm.db != nil {
-		// Check if connection is still valid and within ping interval
-		if time.Since(cm.lastCheck) < cm.pingInterval {
-			cm.mu.RUnlock()
-			return cm.db, nil
-		}
+	if db, err, ok := cm.cachedResult(); ok {
+		return db, err
 	}
-	cm.mu.RUnlock()
 
-	// Upgrade to write lock
+	// Serialize actual connection attempts so concurrent callers don't dial
+	// in parallel. This may block the calling goroutine on network I/O, but
+	// never blocks other goroutines that only read the cached status.
+	cm.connMu.Lock()
+	defer cm.connMu.Unlock()
+
+	// Re-check: another goroutine may have just finished connecting while we
+	// were waiting for connMu.
+	if db, err, ok := cm.cachedResult(); ok {
+		return db, err
+	}
+
+	newDB, err := cm.dial()
+
 	cm.mu.Lock()
-	defer cm.mu.Unlock()
-
-	// Double-check: someone else might have connected while we were waiting for the write lock
-	if cm.db != nil {
-		// Check if connection is still valid and within ping interval
-		if time.Since(cm.lastCheck) < cm.pingInterval {
-			return cm.db, nil
-		}
-	}
-
-	// Check if we're in cooldown period after a failed attempt
-	if cm.lastError != nil && time.Since(cm.lastCheck) < cm.reconnectCooldown {
-		return nil, cm.lastError
-	}
-
-	// Attempt to connect
-	err := cm.connect()
 	if err != nil {
 		// Drop stale handle so callers don't treat it as an active connection.
 		cm.db = nil
 		cm.lastError = err
 		cm.lastCheck = time.Now()
+		cm.mu.Unlock()
 		return nil, err
 	}
-
-	// Update last check time and return success
-	cm.lastCheck = time.Now()
+	cm.db = newDB
 	cm.lastError = nil
-	return cm.db, nil
+	cm.lastCheck = time.Now()
+	cm.mu.Unlock()
+
+	return newDB, nil
 }
 
-// connect establishes a new database connection
-func (cm *ConnectionManager) connect() error {
+// cachedResult returns (db, err, true) if the cached state is still fresh
+// enough to answer without a new network round-trip: either a live
+// connection within pingInterval, or a recent failure still within
+// reconnectCooldown. Returns ok=false if a fresh connection attempt is needed.
+func (cm *ConnectionManager) cachedResult() (*gorm.DB, error, bool) {
+	cm.mu.RLock()
+	defer cm.mu.RUnlock()
+
+	if cm.db != nil && time.Since(cm.lastCheck) < cm.pingInterval {
+		return cm.db, nil, true
+	}
+	if cm.db == nil && cm.lastError != nil && time.Since(cm.lastCheck) < cm.reconnectCooldown {
+		return nil, cm.lastError, true
+	}
+	return nil, nil, false
+}
+
+// dial establishes a new database connection. Pure network I/O — must not be
+// called while holding cm.mu.
+func (cm *ConnectionManager) dial() (*gorm.DB, error) {
 	// Get DSN from local settings
 	dsn, err := cm.localDB.GetDSN()
 	if err != nil {
-		return fmt.Errorf("getting DSN: %w", err)
+		return nil, fmt.Errorf("getting DSN: %w", err)
 	}
 
 	// Create context with timeout
@@ -124,18 +191,18 @@ func (cm *ConnectionManager) connect() error {
 		Logger: logger.Default.LogMode(logger.Silent),
 	})
 	if err != nil {
-		return fmt.Errorf("opening database connection: %w", err)
+		return nil, fmt.Errorf("opening database connection: %w", err)
 	}
 
 	// Test the connection
 	sqlDB, err := db.DB()
 	if err != nil {
-		return fmt.Errorf("getting sql.DB: %w", err)
+		return nil, fmt.Errorf("getting sql.DB: %w", err)
 	}
 
 	// Ping with timeout
 	if err = sqlDB.PingContext(ctx); err != nil {
-		return fmt.Errorf("pinging database: %w", err)
+		return nil, fmt.Errorf("pinging database: %w", err)
 	}
 
 	// Set connection pool settings
@@ -143,15 +210,25 @@ func (cm *ConnectionManager) connect() error {
 	sqlDB.SetMaxIdleConns(maxIdleConns)
 	sqlDB.SetConnMaxLifetime(connMaxLifetime)
 
-	// Store the connection
-	cm.db = db
-
-	return nil
+	return db, nil
 }
 
-// IsOnline checks if the database is currently connected and responsive.
-// If disconnected, it tries to reconnect (respecting cooldowns in GetDB).
+// IsOnline returns the cached connectivity status. It never performs network
+// I/O itself so it is safe to call from request-handling middleware; the
+// background loop started by Start() (or an explicit TryConnect) is
+// responsible for keeping the cache fresh.
 func (cm *ConnectionManager) IsOnline() bool {
+	cm.mu.RLock()
+	defer cm.mu.RUnlock()
+	return cm.db != nil && cm.lastError == nil
+}
+
+// checkOnlineNow checks if the database is currently connected and
+// responsive, performing real network I/O (dial/ping) as needed. If
+// disconnected, it tries to reconnect (respecting cooldowns in GetDB). This
+// must only be called from the background status loop or explicit
+// user-triggered reconnects, never from request-handling goroutines.
+func (cm *ConnectionManager) checkOnlineNow() bool {
 	cm.mu.RLock()
 	isDisconnected := cm.db == nil
 	lastErr := cm.lastError
@@ -169,57 +246,65 @@ func (cm *ConnectionManager) IsOnline() bool {
 		return lastErr == nil
 	}
 
-	// Need to perform actual ping.
-	cm.mu.Lock()
-	defer cm.mu.Unlock()
+	// Serialize actual ping attempts (network I/O) against other
+	// connect/ping attempts, without ever holding cm.mu during the I/O.
+	cm.connMu.Lock()
+	defer cm.connMu.Unlock()
 
-	// Double-check after acquiring write lock
-	if cm.db == nil {
+	cm.mu.RLock()
+	db := cm.db
+	checkedRecently = time.Since(cm.lastCheck) < cm.pingInterval
+	cm.mu.RUnlock()
+
+	if db == nil {
 		return false
 	}
+	if checkedRecently {
+		return true
+	}
 
-	// Perform ping with timeout
+	// Perform ping with timeout — no locks held here.
 	ctx, cancel := context.WithTimeout(context.Background(), cm.connectTimeout)
 	defer cancel()
 
-	sqlDB, err := cm.db.DB()
+	sqlDB, err := db.DB()
+	if err == nil {
+		err = sqlDB.PingContext(ctx)
+	}
+
+	cm.mu.Lock()
+	defer cm.mu.Unlock()
 	if err != nil {
 		cm.lastError = err
 		cm.lastCheck = time.Now()
 		cm.db = nil
 		return false
 	}
-
-	if err = sqlDB.PingContext(ctx); err != nil {
-		cm.lastError = err
-		cm.lastCheck = time.Now()
-		cm.db = nil
-		return false
-	}
-
-	// Update last check time and return success
 	cm.lastCheck = time.Now()
 	cm.lastError = nil
 	return true
 }
 
-// TryConnect forces a new connection attempt (for UI "Reconnect" button)
-// Ignores cooldown period
+// TryConnect forces a new connection attempt (for UI "Reconnect" button).
+// Ignores the reconnect cooldown, but still serializes against other
+// dial attempts via connMu and never holds cm.mu during network I/O.
 func (cm *ConnectionManager) TryConnect() error {
+	cm.connMu.Lock()
+	defer cm.connMu.Unlock()
+
+	newDB, err := cm.dial()
+
 	cm.mu.Lock()
 	defer cm.mu.Unlock()
-
-	// Attempt to connect
-	err := cm.connect()
 	if err != nil {
+		cm.db = nil
 		cm.lastError = err
 		cm.lastCheck = time.Now()
 		return err
 	}
-
-	// Update last check time and clear error
-	cm.lastCheck = time.Now()
+	cm.db = newDB
 	cm.lastError = nil
+	cm.lastCheck = time.Now()
 	return nil
 }
 

internal/handlers/component.go

@@ -7,20 +7,17 @@ import (
 
 	"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"
 	"github.com/gin-gonic/gin"
 )
 
 type ComponentHandler struct {
-	componentService *services.ComponentService
-	localDB          *localdb.LocalDB
+	localDB *localdb.LocalDB
 }
 
-func NewComponentHandler(componentService *services.ComponentService, localDB *localdb.LocalDB) *ComponentHandler {
+func NewComponentHandler(localDB *localdb.LocalDB) *ComponentHandler {
 	return &ComponentHandler{
-		componentService: componentService,
-		localDB:          localDB,
+		localDB: localDB,
 	}
 }
 
@@ -34,17 +31,10 @@ func (h *ComponentHandler) List(c *gin.Context) {
 		perPage = 20
 	}
 
-	filter := repository.ComponentFilter{
-		Category:      c.Query("category"),
-		Search:        c.Query("search"),
-		HasPrice:      c.Query("has_price") == "true",
-		ExcludeHidden: c.Query("include_hidden") != "true", // По умолчанию скрытые не показываются
-	}
-
 	localFilter := localdb.ComponentFilter{
-		Category: filter.Category,
-		Search:   filter.Search,
-		HasPrice: filter.HasPrice,
+		Category: c.Query("category"),
+		Search:   c.Query("search"),
+		HasPrice: c.Query("has_price") == "true",
 	}
 	offset := (page - 1) * perPage
 	localComps, total, err := h.localDB.ListComponents(localFilter, offset, perPage)

internal/handlers/vendor_spec.go

@@ -6,7 +6,6 @@ import (
 	"net/http"
 
 	"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"
 	syncsvc "git.mchus.pro/mchus/quoteforge/internal/services/sync"
@@ -100,7 +99,7 @@ func (h *VendorSpecHandler) PutVendorSpec(c *gin.Context) {
 			body.VendorSpec[i].SortOrder = (i + 1) * 10
 		}
 		// Persist canonical LOT mapping only.
-		body.VendorSpec[i].LotMappings = normalizeLotMappings(body.VendorSpec[i].LotMappings)
+		body.VendorSpec[i].LotMappings = localdb.NormalizeLotMappings(body.VendorSpec[i].LotMappings)
 		body.VendorSpec[i].ResolvedLotName = ""
 		body.VendorSpec[i].ResolutionSource = ""
 		body.VendorSpec[i].ManualLotSuggestion = ""
@@ -165,39 +164,6 @@ func (h *VendorSpecHandler) pushLotSuggestions(spec []localdb.VendorSpecItem) {
 	}
 }
 
-func normalizeLotMappings(in []localdb.VendorSpecLotMapping) []localdb.VendorSpecLotMapping {
-	if len(in) == 0 {
-		return nil
-	}
-	merged := make(map[string]int, len(in))
-	order := make([]string, 0, len(in))
-	for _, m := range in {
-		lot := models.NormalizeLotName(m.LotName)
-		if lot == "" {
-			continue
-		}
-		qty := m.QuantityPerPN
-		if qty < 1 {
-			qty = 1
-		}
-		if _, exists := merged[lot]; !exists {
-			order = append(order, lot)
-		}
-		merged[lot] += qty
-	}
-	out := make([]localdb.VendorSpecLotMapping, 0, len(order))
-	for _, lot := range order {
-		out = append(out, localdb.VendorSpecLotMapping{
-			LotName:       lot,
-			QuantityPerPN: merged[lot],
-		})
-	}
-	if len(out) == 0 {
-		return nil
-	}
-	return out
-}
-
 // ResolveVendorSpec resolves vendor PN → LOT without modifying the cart.
 // POST /api/configs/:uuid/vendor-spec/resolve
 func (h *VendorSpecHandler) ResolveVendorSpec(c *gin.Context) {

internal/localdb/converters.go

@@ -6,6 +6,42 @@ import (
 	"git.mchus.pro/mchus/quoteforge/internal/models"
 )
 
+// NormalizeLotMappings is the single canonical normalizer for vendor BOM LOT
+// mappings. LOT names are canonicalized to their uppercase form (see
+// models.NormalizeLotName) so that all BOM↔cart matching is case-insensitive,
+// duplicate LOTs are merged (summing quantity-per-PN), and quantities are at
+// least 1. Returns nil for an empty result. Both the persistence path
+// (handlers) and the CSV export path must use this — do not reimplement it.
+func NormalizeLotMappings(in []VendorSpecLotMapping) []VendorSpecLotMapping {
+	if len(in) == 0 {
+		return nil
+	}
+	merged := make(map[string]int, len(in))
+	order := make([]string, 0, len(in))
+	for _, m := range in {
+		lot := models.NormalizeLotName(m.LotName)
+		if lot == "" {
+			continue
+		}
+		qty := m.QuantityPerPN
+		if qty < 1 {
+			qty = 1
+		}
+		if _, exists := merged[lot]; !exists {
+			order = append(order, lot)
+		}
+		merged[lot] += qty
+	}
+	if len(order) == 0 {
+		return nil
+	}
+	out := make([]VendorSpecLotMapping, 0, len(order))
+	for _, lot := range order {
+		out = append(out, VendorSpecLotMapping{LotName: lot, QuantityPerPN: merged[lot]})
+	}
+	return out
+}
+
 // ConfigurationToLocal converts models.Configuration to LocalConfiguration
 func ConfigurationToLocal(cfg *models.Configuration) *LocalConfiguration {
 	items := make(LocalConfigItems, len(cfg.Items))
@@ -294,41 +330,3 @@ func LocalToPricelistItem(local *LocalPricelistItem, serverPricelistID uint) *mo
 	}
 }
 
-// ComponentToLocal converts models.LotMetadata to LocalComponent
-func ComponentToLocal(meta *models.LotMetadata) *LocalComponent {
-	var lotDesc string
-	var category string
-
-	if meta.Lot != nil {
-		lotDesc = meta.Lot.LotDescription
-	}
-
-	// Extract category from lot_name (e.g., "CPU_AMD_9654" -> "CPU")
-	if len(meta.LotName) > 0 {
-		for i, ch := range meta.LotName {
-			if ch == '_' {
-				category = meta.LotName[:i]
-				break
-			}
-		}
-	}
-
-	return &LocalComponent{
-		LotName:        meta.LotName,
-		LotDescription: lotDesc,
-		Category:       category,
-		Model:          meta.Model,
-	}
-}
-
-// LocalToComponent converts LocalComponent to models.LotMetadata
-func LocalToComponent(local *LocalComponent) *models.LotMetadata {
-	return &models.LotMetadata{
-		LotName: local.LotName,
-		Model:   local.Model,
-		Lot: &models.Lot{
-			LotName:        local.LotName,
-			LotDescription: local.LotDescription,
-		},
-	}
-}

internal/localdb/converters_test.go

@@ -6,6 +6,36 @@ import (
 	"git.mchus.pro/mchus/quoteforge/internal/models"
 )
 
+func TestNormalizeLotMappings_CaseInsensitiveMerge(t *testing.T) {
+	in := []VendorSpecLotMapping{
+		{LotName: "cpu_intel_6960p", QuantityPerPN: 1},
+		{LotName: "CPU_INTEL_6960P", QuantityPerPN: 2},
+		{LotName: "  ps_5200w_Titanium ", QuantityPerPN: 0},
+		{LotName: "", QuantityPerPN: 5},
+	}
+
+	out := NormalizeLotMappings(in)
+
+	if len(out) != 2 {
+		t.Fatalf("expected 2 merged mappings, got %d: %+v", len(out), out)
+	}
+	if out[0].LotName != "CPU_INTEL_6960P" || out[0].QuantityPerPN != 3 {
+		t.Fatalf("expected CPU_INTEL_6960P qty 3, got %+v", out[0])
+	}
+	if out[1].LotName != "PS_5200W_TITANIUM" || out[1].QuantityPerPN != 1 {
+		t.Fatalf("expected PS_5200W_TITANIUM qty 1 (clamped), got %+v", out[1])
+	}
+}
+
+func TestNormalizeLotMappings_Empty(t *testing.T) {
+	if NormalizeLotMappings(nil) != nil {
+		t.Fatal("expected nil for empty input")
+	}
+	if NormalizeLotMappings([]VendorSpecLotMapping{{LotName: "  "}}) != nil {
+		t.Fatal("expected nil when all entries blank")
+	}
+}
+
 func TestPricelistItemToLocal_PreservesLotCategory(t *testing.T) {
 	item := &models.PricelistItem{
 		LotName:     "CPU_A",

internal/localdb/localdb.go

@@ -114,6 +114,13 @@ func New(dbPath string) (*LocalDB, error) {
 		return nil, fmt.Errorf("opening sqlite database: %w", err)
 	}
 
+	// SQLite requires a single writer connection to avoid SQLITE_BUSY under concurrent requests.
+	sqlDB, err := db.DB()
+	if err != nil {
+		return nil, fmt.Errorf("get sql.DB from gorm: %w", err)
+	}
+	sqlDB.SetMaxOpenConns(1)
+
 	// Enable WAL mode so background sync writes never block UI reads.
 	if err := db.Exec("PRAGMA journal_mode=WAL").Error; err != nil {
 		slog.Warn("failed to enable WAL mode", "error", err)
@@ -121,6 +128,10 @@ func New(dbPath string) (*LocalDB, error) {
 	if err := db.Exec("PRAGMA synchronous=NORMAL").Error; err != nil {
 		slog.Warn("failed to set synchronous=NORMAL", "error", err)
 	}
+	// Wait up to 5 s before returning SQLITE_BUSY (guards against WAL checkpoints and external locks).
+	if err := db.Exec("PRAGMA busy_timeout = 5000").Error; err != nil {
+		slog.Warn("failed to set busy_timeout", "error", err)
+	}
 
 	if err := ensureLocalProjectsTable(db); err != nil {
 		return nil, fmt.Errorf("ensure local_projects table: %w", err)
@@ -1235,6 +1246,67 @@ func (l *LocalDB) GetLastComponentSyncError() string {
 }
 
 
+const openConfigUUIDsKey = "open_config_uuids"
+
+// GetOpenConfigUUIDs returns UUIDs of all configurations currently open in the configurator.
+func (l *LocalDB) GetOpenConfigUUIDs() []string {
+	value, ok := l.getAppSettingValue(openConfigUUIDsKey)
+	if !ok || value == "" {
+		return nil
+	}
+	var uuids []string
+	if err := json.Unmarshal([]byte(value), &uuids); err != nil {
+		return nil
+	}
+	return uuids
+}
+
+// AddOpenConfigUUID records that a configuration is open in the configurator.
+func (l *LocalDB) AddOpenConfigUUID(uuid string) error {
+	uuids := l.GetOpenConfigUUIDs()
+	for _, u := range uuids {
+		if u == uuid {
+			return nil
+		}
+	}
+	uuids = append(uuids, uuid)
+	raw, err := json.Marshal(uuids)
+	if err != nil {
+		return err
+	}
+	return l.db.Exec(`
+		INSERT INTO app_settings (key, value, updated_at)
+		VALUES (?, ?, ?)
+		ON CONFLICT(key) DO UPDATE SET value = excluded.value, updated_at = excluded.updated_at
+	`, openConfigUUIDsKey, string(raw), time.Now().Format(time.RFC3339)).Error
+}
+
+// RemoveOpenConfigUUID records that a configuration is no longer open in the configurator.
+func (l *LocalDB) RemoveOpenConfigUUID(uuid string) error {
+	uuids := l.GetOpenConfigUUIDs()
+	filtered := uuids[:0]
+	for _, u := range uuids {
+		if u != uuid {
+			filtered = append(filtered, u)
+		}
+	}
+	var raw []byte
+	var err error
+	if len(filtered) == 0 {
+		raw = []byte("[]")
+	} else {
+		raw, err = json.Marshal(filtered)
+		if err != nil {
+			return err
+		}
+	}
+	return l.db.Exec(`
+		INSERT INTO app_settings (key, value, updated_at)
+		VALUES (?, ?, ?)
+		ON CONFLICT(key) DO UPDATE SET value = excluded.value, updated_at = excluded.updated_at
+	`, openConfigUUIDsKey, string(raw), time.Now().Format(time.RFC3339)).Error
+}
+
 // CountLocalPricelists returns the number of local pricelists
 func (l *LocalDB) CountLocalPricelists() int64 {
 	var count int64
@@ -1720,12 +1792,13 @@ func (l *LocalDB) RepairPendingChanges() (int, []string, error) {
 	var remainingErrors []string
 
 	for _, change := range erroredChanges {
+		var modified bool
 		var repairErr error
 		switch change.EntityType {
 		case "project":
-			repairErr = l.repairProjectChange(&change)
+			modified, repairErr = l.repairProjectChange(&change)
 		case "configuration":
-			repairErr = l.repairConfigurationChange(&change)
+			modified, repairErr = l.repairConfigurationChange(&change)
 		default:
 			repairErr = fmt.Errorf("unknown entity type: %s", change.EntityType)
 		}
@@ -1736,7 +1809,13 @@ func (l *LocalDB) RepairPendingChanges() (int, []string, error) {
 			continue
 		}
 
-		// Clear error and reset attempts
+		// Only reset attempts when the repair actually changed local data.
+		// If nothing was modified, the error is server-side; leaving attempts
+		// intact lets maxPendingChangeAttempts eventually abandon the change.
+		if !modified {
+			continue
+		}
+
 		if err := l.db.Model(&PendingChange{}).Where("id = ?", change.ID).Updates(map[string]interface{}{
 			"last_error": "",
 			"attempts":   0,
@@ -1752,12 +1831,13 @@ func (l *LocalDB) RepairPendingChanges() (int, []string, error) {
 }
 
 // repairProjectChange validates and fixes project data.
+// Returns (modified, err): modified=true only when local data was actually changed.
 // Note: This only validates local data. Server-side conflicts (like duplicate code+variant)
 // are handled by sync service layer with deduplication logic.
-func (l *LocalDB) repairProjectChange(change *PendingChange) error {
+func (l *LocalDB) repairProjectChange(change *PendingChange) (bool, error) {
 	project, err := l.GetProjectByUUID(change.EntityUUID)
 	if err != nil {
-		return fmt.Errorf("project not found locally: %w", err)
+		return false, fmt.Errorf("project not found locally: %w", err)
 	}
 
 	modified := false
@@ -1783,7 +1863,7 @@ func (l *LocalDB) repairProjectChange(change *PendingChange) error {
 	if strings.TrimSpace(project.OwnerUsername) == "" {
 		project.OwnerUsername = l.GetDBUser()
 		if project.OwnerUsername == "" {
-			return fmt.Errorf("cannot determine owner username")
+			return false, fmt.Errorf("cannot determine owner username")
 		}
 		modified = true
 	}
@@ -1804,18 +1884,19 @@ func (l *LocalDB) repairProjectChange(change *PendingChange) error {
 
 	if modified {
 		if err := l.SaveProject(project); err != nil {
-			return fmt.Errorf("saving repaired project: %w", err)
+			return false, fmt.Errorf("saving repaired project: %w", err)
 		}
 	}
 
-	return nil
+	return modified, nil
 }
 
-// repairConfigurationChange validates and fixes configuration data
-func (l *LocalDB) repairConfigurationChange(change *PendingChange) error {
+// repairConfigurationChange validates and fixes configuration data.
+// Returns (modified, err): modified=true only when local data was actually changed.
+func (l *LocalDB) repairConfigurationChange(change *PendingChange) (bool, error) {
 	config, err := l.GetConfigurationByUUID(change.EntityUUID)
 	if err != nil {
-		return fmt.Errorf("configuration not found locally: %w", err)
+		return false, fmt.Errorf("configuration not found locally: %w", err)
 	}
 
 	modified := false
@@ -1827,7 +1908,7 @@ func (l *LocalDB) repairConfigurationChange(change *PendingChange) error {
 			// Project doesn't exist locally - use default system project
 			systemProject, sysErr := l.EnsureDefaultProject(config.OriginalUsername)
 			if sysErr != nil {
-				return fmt.Errorf("getting system project: %w", sysErr)
+				return false, fmt.Errorf("getting system project: %w", sysErr)
 			}
 			config.ProjectUUID = &systemProject.UUID
 			modified = true
@@ -1836,11 +1917,11 @@ func (l *LocalDB) repairConfigurationChange(change *PendingChange) error {
 
 	if modified {
 		if err := l.SaveConfiguration(config); err != nil {
-			return fmt.Errorf("saving repaired configuration: %w", err)
+			return false, fmt.Errorf("saving repaired configuration: %w", err)
 		}
 	}
 
-	return nil
+	return modified, nil
 }
 
 // GetSyncGuardState returns the latest readiness guard state.

internal/models/metadata.go

@@ -1,92 +0,0 @@
-package models
-
-import (
-	"database/sql/driver"
-	"encoding/json"
-	"errors"
-	"time"
-)
-
-type PriceMethod string
-
-const (
-	PriceMethodManual         PriceMethod = "manual"
-	PriceMethodMedian         PriceMethod = "median"
-	PriceMethodAverage        PriceMethod = "average"
-	PriceMethodWeightedMedian PriceMethod = "weighted_median"
-)
-
-type Specs map[string]interface{}
-
-func (s Specs) Value() (driver.Value, error) {
-	return json.Marshal(s)
-}
-
-func (s *Specs) Scan(value interface{}) error {
-	if value == nil {
-		*s = make(Specs)
-		return nil
-	}
-	bytes, ok := value.([]byte)
-	if !ok {
-		return errors.New("type assertion to []byte failed")
-	}
-	return json.Unmarshal(bytes, s)
-}
-
-type LotMetadata struct {
-	LotName          string       `gorm:"column:lot_name;primaryKey;size:255" json:"lot_name"`
-	CategoryID       *uint        `gorm:"column:category_id" json:"category_id"`
-	Model            string       `gorm:"size:100" json:"model"`
-	Specs            Specs        `gorm:"type:json" json:"specs"`
-	CurrentPrice     *float64     `gorm:"type:decimal(12,2)" json:"current_price"`
-	PriceMethod      PriceMethod  `gorm:"type:enum('manual','median','average','weighted_median');default:'median'" json:"price_method"`
-	PricePeriodDays  int          `gorm:"default:90" json:"price_period_days"`
-	PriceCoefficient float64      `gorm:"type:decimal(5,2);default:0" json:"price_coefficient"`
-	ManualPrice      *float64     `gorm:"type:decimal(12,2)" json:"manual_price"`
-	PriceUpdatedAt   *time.Time   `json:"price_updated_at"`
-	RequestCount     int          `gorm:"default:0" json:"request_count"`
-	LastRequestDate  *time.Time   `gorm:"type:date" json:"last_request_date"`
-	PopularityScore  float64      `gorm:"type:decimal(10,4);default:0" json:"popularity_score"`
-	MetaPrices       string       `gorm:"size:1000" json:"meta_prices"`
-	MetaMethod       string       `gorm:"size:20" json:"meta_method"`
-	MetaPeriodDays   int          `gorm:"default:90" json:"meta_period_days"`
-	IsHidden         bool         `gorm:"default:false" json:"is_hidden"`
-
-	// Relations
-	Lot      *Lot      `gorm:"foreignKey:LotName;references:LotName" json:"lot,omitempty"`
-	Category *Category `gorm:"foreignKey:CategoryID" json:"category,omitempty"`
-}
-
-func (LotMetadata) TableName() string {
-	return "qt_lot_metadata"
-}
-
-type PriceFreshness string
-
-const (
-	FreshnessFresh    PriceFreshness = "fresh"
-	FreshnessNormal   PriceFreshness = "normal"
-	FreshnessStale    PriceFreshness = "stale"
-	FreshnessCritical PriceFreshness = "critical"
-)
-
-func (m *LotMetadata) GetPriceFreshness(greenDays, yellowDays, redDays, minQuotes int) PriceFreshness {
-	if m.CurrentPrice == nil || *m.CurrentPrice == 0 {
-		return FreshnessCritical
-	}
-	if m.PriceUpdatedAt == nil {
-		return FreshnessCritical
-	}
-
-	daysSince := int(time.Since(*m.PriceUpdatedAt).Hours() / 24)
-
-	if daysSince < greenDays && m.RequestCount >= minQuotes {
-		return FreshnessFresh
-	} else if daysSince < yellowDays {
-		return FreshnessNormal
-	} else if daysSince < redDays {
-		return FreshnessStale
-	}
-	return FreshnessCritical
-}

internal/models/models.go

@@ -11,7 +11,6 @@ import (
 func AllModels() []interface{} {
 	return []interface{}{
 		&Category{},
-		&LotMetadata{},
 		&Project{},
 		&Configuration{},
 		&Pricelist{},

internal/repository/category.go

@@ -1,76 +0,0 @@
-package repository
-
-import (
-	"git.mchus.pro/mchus/quoteforge/internal/models"
-	"gorm.io/gorm"
-)
-
-type CategoryRepository struct {
-	db *gorm.DB
-}
-
-func NewCategoryRepository(db *gorm.DB) *CategoryRepository {
-	return &CategoryRepository{db: db}
-}
-
-func (r *CategoryRepository) GetAll() ([]models.Category, error) {
-	var categories []models.Category
-	err := r.db.Order("display_order ASC").Find(&categories).Error
-	return categories, err
-}
-
-func (r *CategoryRepository) GetByCode(code string) (*models.Category, error) {
-	var category models.Category
-	err := r.db.Where("code = ?", code).First(&category).Error
-	if err != nil {
-		return nil, err
-	}
-	return &category, nil
-}
-
-func (r *CategoryRepository) GetByID(id uint) (*models.Category, error) {
-	var category models.Category
-	err := r.db.First(&category, id).Error
-	if err != nil {
-		return nil, err
-	}
-	return &category, nil
-}
-
-// CreateIfNotExists creates a new category if it doesn't exist, returns existing one if it does
-func (r *CategoryRepository) CreateIfNotExists(code string) (*models.Category, error) {
-	// Try to find existing
-	existing, err := r.GetByCode(code)
-	if err == nil {
-		return existing, nil
-	}
-
-	// Get max display order to put new category at the end
-	var maxOrder int
-	r.db.Model(&models.Category{}).Select("COALESCE(MAX(display_order), 0)").Scan(&maxOrder)
-
-	// Create new category
-	newCat := &models.Category{
-		Code:         code,
-		Name:         code, // Use code as name initially
-		NameRu:       code,
-		DisplayOrder: maxOrder + 1,
-		IsRequired:   false,
-	}
-
-	if err := r.db.Create(newCat).Error; err != nil {
-		return nil, err
-	}
-
-	return newCat, nil
-}
-
-// Create creates a new category
-func (r *CategoryRepository) Create(category *models.Category) error {
-	return r.db.Create(category).Error
-}
-
-// Update updates an existing category
-func (r *CategoryRepository) Update(category *models.Category) error {
-	return r.db.Save(category).Error
-}

internal/repository/component.go

@@ -1,140 +0,0 @@
-package repository
-
-import (
-	"time"
-
-	"git.mchus.pro/mchus/quoteforge/internal/models"
-	"gorm.io/gorm"
-)
-
-type ComponentRepository struct {
-	db *gorm.DB
-}
-
-func NewComponentRepository(db *gorm.DB) *ComponentRepository {
-	return &ComponentRepository{db: db}
-}
-
-type ComponentFilter struct {
-	Category     string
-	Search       string
-	HasPrice     bool
-	ExcludeHidden bool
-	SortField    string
-	SortDir      string
-}
-
-func (r *ComponentRepository) List(filter ComponentFilter, offset, limit int) ([]models.LotMetadata, int64, error) {
-	var components []models.LotMetadata
-	var total int64
-
-	query := r.db.Model(&models.LotMetadata{}).
-		Preload("Lot").
-		Preload("Category")
-
-	if filter.Category != "" {
-		query = query.Joins("JOIN qt_categories ON qt_lot_metadata.category_id = qt_categories.id").
-			Where("qt_categories.code = ?", filter.Category)
-	}
-	if filter.Search != "" {
-		search := "%" + filter.Search + "%"
-		query = query.Where("lot_name LIKE ? OR model LIKE ?", search, search)
-	}
-	if filter.HasPrice {
-		query = query.Where("current_price IS NOT NULL AND current_price > 0")
-	}
-	if filter.ExcludeHidden {
-		query = query.Where("is_hidden = ? OR is_hidden IS NULL", false)
-	}
-
-	query.Count(&total)
-
-	// Apply sorting
-	sortDir := "ASC"
-	if filter.SortDir == "desc" {
-		sortDir = "DESC"
-	}
-
-	switch filter.SortField {
-	case "popularity_score":
-		query = query.Order("popularity_score " + sortDir)
-	case "current_price":
-		query = query.Order("CASE WHEN current_price IS NULL OR current_price = 0 THEN 1 ELSE 0 END").
-			Order("current_price " + sortDir)
-	case "lot_name":
-		query = query.Order("lot_name " + sortDir)
-	default:
-		// Default: sort by popularity, no price goes last
-		query = query.
-			Order("CASE WHEN current_price IS NULL OR current_price = 0 THEN 1 ELSE 0 END").
-			Order("popularity_score DESC")
-	}
-
-	err := query.
-		Offset(offset).
-		Limit(limit).
-		Find(&components).Error
-
-	return components, total, err
-}
-
-func (r *ComponentRepository) GetByLotName(lotName string) (*models.LotMetadata, error) {
-	var component models.LotMetadata
-	err := r.db.
-		Preload("Lot").
-		Preload("Category").
-		Where("lot_name = ?", lotName).
-		First(&component).Error
-	if err != nil {
-		return nil, err
-	}
-	return &component, nil
-}
-
-func (r *ComponentRepository) GetMultiple(lotNames []string) ([]models.LotMetadata, error) {
-	var components []models.LotMetadata
-	err := r.db.
-		Preload("Lot").
-		Preload("Category").
-		Where("lot_name IN ?", lotNames).
-		Find(&components).Error
-	return components, err
-}
-
-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
-}
-
-func (r *ComponentRepository) IncrementRequestCount(lotName string) error {
-	now := time.Now()
-	return r.db.Model(&models.LotMetadata{}).
-		Where("lot_name = ?", lotName).
-		Updates(map[string]interface{}{
-			"request_count":     gorm.Expr("request_count + 1"),
-			"last_request_date": now,
-		}).Error
-}
-
-// GetAllLots returns all lots from the existing lot table
-func (r *ComponentRepository) GetAllLots() ([]models.Lot, error) {
-	var lots []models.Lot
-	err := r.db.Find(&lots).Error
-	return lots, err
-}
-
-// GetLotsWithoutMetadata returns lots that don't have qt_lot_metadata entries
-func (r *ComponentRepository) GetLotsWithoutMetadata() ([]models.Lot, error) {
-	var lots []models.Lot
-	err := r.db.
-		Where("lot_name NOT IN (SELECT lot_name FROM qt_lot_metadata)").
-		Find(&lots).Error
-	return lots, err
-}

internal/repository/project.go

@@ -23,6 +23,11 @@ func (r *ProjectRepository) Update(project *models.Project) error {
 }
 
 func (r *ProjectRepository) UpsertByUUID(project *models.Project) error {
+	// Clear the client-side primary key so the upsert is driven purely by the
+	// uuid unique constraint. Passing a non-zero ID can trigger ON DUPLICATE KEY
+	// on the primary key of an unrelated row, leaving uuid unchanged and causing
+	// the follow-up SELECT to return ErrRecordNotFound.
+	project.ID = 0
 	if err := r.db.Clauses(clause.OnConflict{
 		Columns: []clause.Column{{Name: "uuid"}},
 		DoUpdates: clause.AssignmentColumns([]string{

internal/repository/unified.go

@@ -1,393 +0,0 @@
-package repository
-
-import (
-	"encoding/json"
-	"fmt"
-	"time"
-
-	"git.mchus.pro/mchus/quoteforge/internal/localdb"
-	"git.mchus.pro/mchus/quoteforge/internal/models"
-	"gorm.io/gorm"
-)
-
-// DataSource defines the unified interface for data access
-// It abstracts whether data comes from MariaDB (online) or SQLite (offline)
-type DataSource interface {
-	// Components
-	GetComponents(filter ComponentFilter, offset, limit int) ([]models.LotMetadata, int64, error)
-	GetComponent(lotName string) (*models.LotMetadata, error)
-
-	// Configurations
-	SaveConfiguration(cfg *models.Configuration) error
-	GetConfigurations(ownerUsername string) ([]models.Configuration, error)
-	GetConfigurationByUUID(uuid string) (*models.Configuration, error)
-	DeleteConfiguration(uuid string) error
-
-	// Pricelists (read-only in offline mode)
-	GetPricelists() ([]models.PricelistSummary, error)
-	GetPricelistByID(id uint) (*models.Pricelist, error)
-	GetPricelistItems(pricelistID uint) ([]models.PricelistItem, error)
-	GetLatestPricelist() (*models.Pricelist, error)
-}
-
-// UnifiedRepo implements DataSource with automatic online/offline switching
-type UnifiedRepo struct {
-	mariaDB  *gorm.DB
-	localDB  *localdb.LocalDB
-	isOnline bool
-}
-
-// NewUnifiedRepo creates a new unified repository
-func NewUnifiedRepo(mariaDB *gorm.DB, localDB *localdb.LocalDB, isOnline bool) *UnifiedRepo {
-	return &UnifiedRepo{
-		mariaDB:  mariaDB,
-		localDB:  localDB,
-		isOnline: isOnline,
-	}
-}
-
-// SetOnlineStatus updates the online/offline status
-func (r *UnifiedRepo) SetOnlineStatus(online bool) {
-	r.isOnline = online
-}
-
-// IsOnline returns the current online/offline status
-func (r *UnifiedRepo) IsOnline() bool {
-	return r.isOnline
-}
-
-// Component methods
-
-// GetComponents returns components from MariaDB (online) or local cache (offline)
-func (r *UnifiedRepo) GetComponents(filter ComponentFilter, offset, limit int) ([]models.LotMetadata, int64, error) {
-	if r.isOnline {
-		return r.getComponentsOnline(filter, offset, limit)
-	}
-	return r.getComponentsOffline(filter, offset, limit)
-}
-
-func (r *UnifiedRepo) getComponentsOnline(filter ComponentFilter, offset, limit int) ([]models.LotMetadata, int64, error) {
-	repo := NewComponentRepository(r.mariaDB)
-	return repo.List(filter, offset, limit)
-}
-
-func (r *UnifiedRepo) getComponentsOffline(filter ComponentFilter, offset, limit int) ([]models.LotMetadata, int64, error) {
-	var components []localdb.LocalComponent
-	query := r.localDB.DB().Model(&localdb.LocalComponent{})
-
-	// Apply filters
-	if filter.Category != "" {
-		query = query.Where("category = ?", filter.Category)
-	}
-	if filter.Search != "" {
-		search := "%" + filter.Search + "%"
-		query = query.Where("lot_name LIKE ? OR lot_description LIKE ? OR model LIKE ?", search, search, search)
-	}
-	var total int64
-	query.Count(&total)
-
-	// Apply sorting
-	sortDir := "ASC"
-	if filter.SortDir == "desc" {
-		sortDir = "DESC"
-	}
-	switch filter.SortField {
-	case "lot_name":
-		query = query.Order("lot_name " + sortDir)
-	default:
-		query = query.Order("lot_name ASC")
-	}
-
-	if err := query.Offset(offset).Limit(limit).Find(&components).Error; err != nil {
-		return nil, 0, fmt.Errorf("fetching offline components: %w", err)
-	}
-
-	// Convert to models.LotMetadata
-	result := make([]models.LotMetadata, len(components))
-	for i, comp := range components {
-		result[i] = models.LotMetadata{
-			LotName: comp.LotName,
-			Model:   comp.Model,
-			Lot: &models.Lot{
-				LotName:        comp.LotName,
-				LotDescription: comp.LotDescription,
-			},
-		}
-	}
-
-	return result, total, nil
-}
-
-// GetComponent returns a single component by lot name
-func (r *UnifiedRepo) GetComponent(lotName string) (*models.LotMetadata, error) {
-	if r.isOnline {
-		repo := NewComponentRepository(r.mariaDB)
-		return repo.GetByLotName(lotName)
-	}
-
-	var comp localdb.LocalComponent
-	if err := r.localDB.DB().Where("lot_name = ?", lotName).First(&comp).Error; err != nil {
-		return nil, fmt.Errorf("fetching offline component: %w", err)
-	}
-
-	return &models.LotMetadata{
-		LotName: comp.LotName,
-		Model:   comp.Model,
-		Lot: &models.Lot{
-			LotName:        comp.LotName,
-			LotDescription: comp.LotDescription,
-		},
-	}, nil
-}
-
-// Configuration methods
-
-// SaveConfiguration saves a configuration (online: MariaDB, offline: SQLite + pending_changes)
-func (r *UnifiedRepo) SaveConfiguration(cfg *models.Configuration) error {
-	if r.isOnline {
-		repo := NewConfigurationRepository(r.mariaDB)
-		return repo.Create(cfg)
-	}
-
-	// Offline: save to local SQLite and queue for sync
-	localCfg := &localdb.LocalConfiguration{
-		UUID:             cfg.UUID,
-		Name:             cfg.Name,
-		TotalPrice:       cfg.TotalPrice,
-		CustomPrice:      cfg.CustomPrice,
-		Notes:            cfg.Notes,
-		IsTemplate:       cfg.IsTemplate,
-		ServerCount:      cfg.ServerCount,
-		CreatedAt:        cfg.CreatedAt,
-		UpdatedAt:        time.Now(),
-		SyncStatus:       "pending",
-		OriginalUsername: cfg.OwnerUsername,
-	}
-
-	// Convert items
-	localItems := make(localdb.LocalConfigItems, len(cfg.Items))
-	for i, item := range cfg.Items {
-		localItems[i] = localdb.LocalConfigItem{
-			LotName:   item.LotName,
-			Quantity:  item.Quantity,
-			UnitPrice: item.UnitPrice,
-		}
-	}
-	localCfg.Items = localItems
-
-	if err := r.localDB.SaveConfiguration(localCfg); err != nil {
-		return fmt.Errorf("saving local configuration: %w", err)
-	}
-
-	// Add to pending changes queue
-	payload, err := json.Marshal(cfg)
-	if err != nil {
-		return fmt.Errorf("marshaling configuration for sync: %w", err)
-	}
-
-	return r.localDB.AddPendingChange("configuration", cfg.UUID, "create", string(payload))
-}
-
-// GetConfigurations returns all configurations for a user
-func (r *UnifiedRepo) GetConfigurations(ownerUsername string) ([]models.Configuration, error) {
-	if r.isOnline {
-		repo := NewConfigurationRepository(r.mariaDB)
-		configs, _, err := repo.ListByUser(ownerUsername, 0, 1000)
-		return configs, err
-	}
-
-	// Offline: get from local SQLite
-	localConfigs, err := r.localDB.GetConfigurations()
-	if err != nil {
-		return nil, fmt.Errorf("fetching local configurations: %w", err)
-	}
-
-	// Convert to models.Configuration
-	result := make([]models.Configuration, len(localConfigs))
-	for i, lc := range localConfigs {
-		items := make(models.ConfigItems, len(lc.Items))
-		for j, item := range lc.Items {
-			items[j] = models.ConfigItem{
-				LotName:   item.LotName,
-				Quantity:  item.Quantity,
-				UnitPrice: item.UnitPrice,
-			}
-		}
-
-		result[i] = models.Configuration{
-			UUID:          lc.UUID,
-			OwnerUsername: lc.OriginalUsername,
-			Name:          lc.Name,
-			Items:         items,
-			TotalPrice:    lc.TotalPrice,
-			CustomPrice:   lc.CustomPrice,
-			Notes:         lc.Notes,
-			IsTemplate:    lc.IsTemplate,
-			ServerCount:   lc.ServerCount,
-			CreatedAt:     lc.CreatedAt,
-		}
-	}
-
-	return result, nil
-}
-
-// GetConfigurationByUUID returns a configuration by UUID
-func (r *UnifiedRepo) GetConfigurationByUUID(uuid string) (*models.Configuration, error) {
-	if r.isOnline {
-		repo := NewConfigurationRepository(r.mariaDB)
-		return repo.GetByUUID(uuid)
-	}
-
-	localCfg, err := r.localDB.GetConfigurationByUUID(uuid)
-	if err != nil {
-		return nil, fmt.Errorf("fetching local configuration: %w", err)
-	}
-
-	items := make(models.ConfigItems, len(localCfg.Items))
-	for i, item := range localCfg.Items {
-		items[i] = models.ConfigItem{
-			LotName:   item.LotName,
-			Quantity:  item.Quantity,
-			UnitPrice: item.UnitPrice,
-		}
-	}
-
-	return &models.Configuration{
-		UUID:        localCfg.UUID,
-		Name:        localCfg.Name,
-		Items:       items,
-		TotalPrice:  localCfg.TotalPrice,
-		CustomPrice: localCfg.CustomPrice,
-		Notes:       localCfg.Notes,
-		IsTemplate:  localCfg.IsTemplate,
-		ServerCount: localCfg.ServerCount,
-		CreatedAt:   localCfg.CreatedAt,
-	}, nil
-}
-
-// DeleteConfiguration deletes a configuration
-func (r *UnifiedRepo) DeleteConfiguration(uuid string) error {
-	if r.isOnline {
-		// Get ID first
-		cfg, err := r.GetConfigurationByUUID(uuid)
-		if err != nil {
-			return err
-		}
-		repo := NewConfigurationRepository(r.mariaDB)
-		return repo.Delete(cfg.ID)
-	}
-
-	// Offline: delete from local and queue sync
-	if err := r.localDB.DeleteConfiguration(uuid); err != nil {
-		return fmt.Errorf("deleting local configuration: %w", err)
-	}
-
-	return r.localDB.AddPendingChange("configuration", uuid, "delete", "")
-}
-
-// Pricelist methods
-
-// GetPricelists returns all pricelists
-func (r *UnifiedRepo) GetPricelists() ([]models.PricelistSummary, error) {
-	if r.isOnline {
-		repo := NewPricelistRepository(r.mariaDB)
-		summaries, _, err := repo.List(0, 1000)
-		return summaries, err
-	}
-
-	// Offline: get from local cache
-	localPLs, err := r.localDB.GetLocalPricelists()
-	if err != nil {
-		return nil, fmt.Errorf("fetching local pricelists: %w", err)
-	}
-
-	summaries := make([]models.PricelistSummary, len(localPLs))
-	for i, pl := range localPLs {
-		itemCount := r.localDB.CountLocalPricelistItems(pl.ID)
-		summaries[i] = models.PricelistSummary{
-			ID:        pl.ServerID,
-			Version:   pl.Version,
-			CreatedAt: pl.CreatedAt,
-			ItemCount: itemCount,
-		}
-	}
-
-	return summaries, nil
-}
-
-// GetPricelistByID returns a pricelist by ID
-func (r *UnifiedRepo) GetPricelistByID(id uint) (*models.Pricelist, error) {
-	if r.isOnline {
-		repo := NewPricelistRepository(r.mariaDB)
-		return repo.GetByID(id)
-	}
-
-	// Offline: get from local cache
-	localPL, err := r.localDB.GetLocalPricelistByServerID(id)
-	if err != nil {
-		return nil, fmt.Errorf("fetching local pricelist: %w", err)
-	}
-
-	itemCount := r.localDB.CountLocalPricelistItems(localPL.ID)
-	return &models.Pricelist{
-		ID:        localPL.ServerID,
-		Version:   localPL.Version,
-		CreatedAt: localPL.CreatedAt,
-		ItemCount: int(itemCount),
-	}, nil
-}
-
-// GetPricelistItems returns items for a pricelist
-func (r *UnifiedRepo) GetPricelistItems(pricelistID uint) ([]models.PricelistItem, error) {
-	if r.isOnline {
-		repo := NewPricelistRepository(r.mariaDB)
-		items, _, err := repo.GetItems(pricelistID, 0, 100000, "")
-		return items, err
-	}
-
-	// Offline: get from local cache
-	// First find the local pricelist by server ID
-	localPL, err := r.localDB.GetLocalPricelistByServerID(pricelistID)
-	if err != nil {
-		return nil, fmt.Errorf("fetching local pricelist: %w", err)
-	}
-
-	localItems, err := r.localDB.GetLocalPricelistItems(localPL.ID)
-	if err != nil {
-		return nil, fmt.Errorf("fetching local pricelist items: %w", err)
-	}
-
-	items := make([]models.PricelistItem, len(localItems))
-	for i, item := range localItems {
-		items[i] = models.PricelistItem{
-			ID:          item.ID,
-			PricelistID: pricelistID,
-			LotName:     item.LotName,
-			Price:       item.Price,
-		}
-	}
-
-	return items, nil
-}
-
-// GetLatestPricelist returns the latest pricelist
-func (r *UnifiedRepo) GetLatestPricelist() (*models.Pricelist, error) {
-	if r.isOnline {
-		repo := NewPricelistRepository(r.mariaDB)
-		return repo.GetLatestActive()
-	}
-
-	// Offline: get from local cache
-	localPL, err := r.localDB.GetLatestLocalPricelist()
-	if err != nil {
-		return nil, fmt.Errorf("fetching latest local pricelist: %w", err)
-	}
-
-	itemCount := r.localDB.CountLocalPricelistItems(localPL.ID)
-	return &models.Pricelist{
-		ID:        localPL.ServerID,
-		Version:   localPL.Version,
-		CreatedAt: localPL.CreatedAt,
-		ItemCount: int(itemCount),
-	}, nil
-}

internal/services/component.go

@@ -1,43 +1,5 @@
 package services
 
-import (
-	"fmt"
-	"log/slog"
-	"strings"
-
-	"git.mchus.pro/mchus/quoteforge/internal/models"
-	"git.mchus.pro/mchus/quoteforge/internal/repository"
-)
-
-type ComponentService struct {
-	componentRepo *repository.ComponentRepository
-	categoryRepo  *repository.CategoryRepository
-}
-
-func NewComponentService(
-	componentRepo *repository.ComponentRepository,
-	categoryRepo *repository.CategoryRepository,
-) *ComponentService {
-	return &ComponentService{
-		componentRepo: componentRepo,
-		categoryRepo:  categoryRepo,
-	}
-}
-
-// ParsePartNumber extracts category and model from lot_name
-// "CPU_AMD_9654" → category="CPU", model="AMD_9654"
-// "MB_INTEL_4.Sapphire_2S_32xDDR5" → category="MB", model="INTEL_4.Sapphire_2S_32xDDR5"
-func ParsePartNumber(lotName string) (category, model string) {
-	parts := strings.SplitN(lotName, "_", 2)
-	if len(parts) >= 1 {
-		category = parts[0]
-	}
-	if len(parts) >= 2 {
-		model = parts[1]
-	}
-	return
-}
-
 type ComponentListResult struct {
 	Items      []ComponentView `json:"items"`
 	TotalCount int64           `json:"total_count"`
@@ -47,178 +9,9 @@ type ComponentListResult struct {
 }
 
 type ComponentView struct {
-	LotName         string                `json:"lot_name"`
-	Description     string                `json:"description"`
-	Category        string                `json:"category"`
-	CategoryName    string                `json:"category_name"`
-	Model           string                `json:"model"`
-	PriceFreshness  models.PriceFreshness `json:"price_freshness"`
-	PopularityScore float64               `json:"popularity_score"`
-	Specs           models.Specs          `json:"specs,omitempty"`
-}
-
-func (s *ComponentService) List(filter repository.ComponentFilter, page, perPage int) (*ComponentListResult, error) {
-	// If no database connection (offline mode), return empty list
-	// Components should be loaded via /api/sync/components first
-	if s.componentRepo == nil {
-		return &ComponentListResult{
-			Items:      []ComponentView{},
-			TotalCount: 0,
-			Page:       page,
-			PerPage:    perPage,
-			TotalPages: 1,
-		}, nil
-	}
-
-	if page < 1 {
-		page = 1
-	}
-	if perPage < 1 {
-		perPage = 20
-	}
-	if perPage > 5000 {
-		perPage = 5000
-	}
-	offset := (page - 1) * perPage
-
-	components, total, err := s.componentRepo.List(filter, offset, perPage)
-	if err != nil {
-		return nil, err
-	}
-
-	views := make([]ComponentView, len(components))
-	for i, c := range components {
-		view := ComponentView{
-			LotName:         c.LotName,
-			Model:           c.Model,
-			PriceFreshness:  c.GetPriceFreshness(30, 60, 90, 3),
-			PopularityScore: c.PopularityScore,
-			Specs:           c.Specs,
-		}
-
-		if c.Lot != nil {
-			view.Description = c.Lot.LotDescription
-		}
-		if c.Category != nil {
-			view.Category = c.Category.Code
-			view.CategoryName = c.Category.Name
-		}
-
-		views[i] = view
-	}
-
-	totalPages := int((total + int64(perPage) - 1) / int64(perPage))
-	if totalPages < 1 {
-		totalPages = 1
-	}
-	return &ComponentListResult{
-		Items:      views,
-		TotalCount: total,
-		Page:       page,
-		PerPage:    perPage,
-		TotalPages: totalPages,
-	}, nil
-}
-
-func (s *ComponentService) GetByLotName(lotName string) (*ComponentView, error) {
-	// If no database connection (offline mode), return error
-	if s.componentRepo == nil {
-		return nil, fmt.Errorf("offline mode: component data not available")
-	}
-
-	c, err := s.componentRepo.GetByLotName(lotName)
-	if err != nil {
-		return nil, err
-	}
-
-	// Track usage (best-effort)
-	if err := s.componentRepo.IncrementRequestCount(lotName); err != nil {
-		slog.Warn("component: could not increment request count", "lot", lotName, "err", err)
-	}
-
-	view := &ComponentView{
-		LotName:         c.LotName,
-		Model:           c.Model,
-		PriceFreshness:  c.GetPriceFreshness(30, 60, 90, 3),
-		PopularityScore: c.PopularityScore,
-		Specs:           c.Specs,
-	}
-
-	if c.Lot != nil {
-		view.Description = c.Lot.LotDescription
-	}
-	if c.Category != nil {
-		view.Category = c.Category.Code
-		view.CategoryName = c.Category.Name
-	}
-
-	return view, nil
-}
-
-func (s *ComponentService) GetCategories() ([]models.Category, error) {
-	// If no database connection (offline mode), return default categories
-	if s.categoryRepo == nil {
-		return models.DefaultCategories, nil
-	}
-	return s.categoryRepo.GetAll()
-}
-
-// ImportFromLot creates metadata entries for lots that don't have them
-func (s *ComponentService) ImportFromLot() (int, error) {
-	// If no database connection (offline mode), return error
-	if s.componentRepo == nil || s.categoryRepo == nil {
-		return 0, fmt.Errorf("offline mode: import not available")
-	}
-
-	lots, err := s.componentRepo.GetLotsWithoutMetadata()
-	if err != nil {
-		return 0, err
-	}
-
-	categories, err := s.categoryRepo.GetAll()
-	if err != nil {
-		return 0, err
-	}
-
-	categoryMap := make(map[string]uint)
-	for _, cat := range categories {
-		categoryMap[strings.ToUpper(cat.Code)] = cat.ID
-	}
-
-	imported := 0
-	for _, lot := range lots {
-		// Use lot_category from database if available, otherwise parse from lot_name
-		var category string
-		if lot.LotCategory != nil && *lot.LotCategory != "" {
-			category = strings.ToUpper(*lot.LotCategory)
-		} else {
-			category, _ = ParsePartNumber(lot.LotName)
-			category = strings.ToUpper(category)
-		}
-
-		_, model := ParsePartNumber(lot.LotName)
-
-		metadata := &models.LotMetadata{
-			LotName: lot.LotName,
-			Model:   model,
-			Specs:   make(models.Specs),
-		}
-
-		if catID, ok := categoryMap[category]; ok {
-			metadata.CategoryID = &catID
-		} else {
-			// Create new category if it doesn't exist
-			newCat, err := s.categoryRepo.CreateIfNotExists(category)
-			if err == nil && newCat != nil {
-				metadata.CategoryID = &newCat.ID
-			}
-		}
-
-		if err := s.componentRepo.Create(metadata); err != nil {
-			continue
-		}
-		imported++
-	}
-
-	return imported, nil
+	LotName      string `json:"lot_name"`
+	Description  string `json:"description"`
+	Category     string `json:"category"`
+	CategoryName string `json:"category_name"`
+	Model        string `json:"model"`
 }

internal/services/configuration.go

@@ -2,11 +2,8 @@ package services
 
 import (
 	"errors"
-	"time"
 
 	"git.mchus.pro/mchus/quoteforge/internal/models"
-	"git.mchus.pro/mchus/quoteforge/internal/repository"
-	"github.com/google/uuid"
 )
 
 var (
@@ -14,37 +11,13 @@ var (
 	ErrConfigForbidden = errors.New("access to configuration forbidden")
 )
 
-// ConfigurationGetter is an interface for services that can retrieve configurations
-// Used by handlers to work with both ConfigurationService and LocalConfigurationService
+// ConfigurationGetter is an interface for services that can retrieve configurations.
+// Used by handlers to work with LocalConfigurationService.
 type ConfigurationGetter interface {
 	GetByUUID(uuid string, ownerUsername string) (*models.Configuration, error)
 	GetByUUIDNoAuth(uuid string) (*models.Configuration, error)
 }
 
-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,
-	}
-}
-
 type CreateConfigRequest struct {
 	Name                  string             `json:"name"`
 	Items                 models.ConfigItems `json:"items"`
@@ -70,583 +43,3 @@ type ArticlePreviewRequest struct {
 	SupportCode string             `json:"support_code,omitempty"`
 	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
-	if req.ServerCount > 1 {
-		total *= float64(req.ServerCount)
-	}
-
-	config := &models.Configuration{
-		UUID:                  uuid.New().String(),
-		OwnerUsername:         ownerUsername,
-		ProjectUUID:           projectUUID,
-		Name:                  req.Name,
-		Items:                 req.Items,
-		TotalPrice:            &total,
-		CustomPrice:           req.CustomPrice,
-		Notes:                 req.Notes,
-		IsTemplate:            req.IsTemplate,
-		ServerCount:           req.ServerCount,
-		ServerModel:           req.ServerModel,
-		SupportCode:           req.SupportCode,
-		Article:               req.Article,
-		PricelistID:           pricelistID,
-		WarehousePricelistID:  req.WarehousePricelistID,
-		CompetitorPricelistID: req.CompetitorPricelistID,
-		ConfigType:            req.ConfigType,
-		DisablePriceRefresh:   req.DisablePriceRefresh,
-		OnlyInStock:           req.OnlyInStock,
-	}
-	if config.ConfigType == "" {
-		config.ConfigType = "server"
-	}
-
-	if err := s.configRepo.Create(config); err != nil {
-		return nil, err
-	}
-
-	return config, nil
-}
-
-func (s *ConfigurationService) GetByUUID(uuid string, ownerUsername string) (*models.Configuration, error) {
-	config, err := s.configRepo.GetByUUID(uuid)
-	if err != nil {
-		return nil, ErrConfigNotFound
-	}
-
-	// Allow access if user owns config or it's a template
-	if !s.isOwner(config, ownerUsername) && !config.IsTemplate {
-		return nil, ErrConfigForbidden
-	}
-
-	return config, nil
-}
-
-func (s *ConfigurationService) Update(uuid string, ownerUsername string, req *CreateConfigRequest) (*models.Configuration, error) {
-	config, err := s.configRepo.GetByUUID(uuid)
-	if err != nil {
-		return nil, ErrConfigNotFound
-	}
-
-	if !s.isOwner(config, ownerUsername) {
-		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
-	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.ServerModel = req.ServerModel
-	config.SupportCode = req.SupportCode
-	config.Article = req.Article
-	config.PricelistID = pricelistID
-	config.WarehousePricelistID = req.WarehousePricelistID
-	config.CompetitorPricelistID = req.CompetitorPricelistID
-	config.DisablePriceRefresh = req.DisablePriceRefresh
-	config.OnlyInStock = req.OnlyInStock
-
-	if err := s.configRepo.Update(config); err != nil {
-		return nil, err
-	}
-
-	return config, nil
-}
-
-func (s *ConfigurationService) Delete(uuid string, ownerUsername string) error {
-	config, err := s.configRepo.GetByUUID(uuid)
-	if err != nil {
-		return ErrConfigNotFound
-	}
-
-	if !s.isOwner(config, ownerUsername) {
-		return ErrConfigForbidden
-	}
-
-	return s.configRepo.Delete(config.ID)
-}
-
-func (s *ConfigurationService) Rename(uuid string, ownerUsername string, newName string) (*models.Configuration, error) {
-	config, err := s.configRepo.GetByUUID(uuid)
-	if err != nil {
-		return nil, ErrConfigNotFound
-	}
-
-	if !s.isOwner(config, ownerUsername) {
-		return nil, ErrConfigForbidden
-	}
-
-	config.Name = newName
-
-	if err := s.configRepo.Update(config); err != nil {
-		return nil, err
-	}
-
-	return config, nil
-}
-
-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()
-
-	// If server count is greater than 1, multiply the total by server count
-	if original.ServerCount > 1 {
-		total *= float64(original.ServerCount)
-	}
-
-	clone := &models.Configuration{
-		UUID:                  uuid.New().String(),
-		OwnerUsername:         ownerUsername,
-		ProjectUUID:           resolvedProjectUUID,
-		Name:                  newName,
-		Items:                 original.Items,
-		TotalPrice:            &total,
-		CustomPrice:           original.CustomPrice,
-		Notes:                 original.Notes,
-		IsTemplate:            false, // Clone is never a template
-		ServerCount:           original.ServerCount,
-		ServerModel:           original.ServerModel,
-		SupportCode:           original.SupportCode,
-		Article:               original.Article,
-		PricelistID:           original.PricelistID,
-		WarehousePricelistID:  original.WarehousePricelistID,
-		CompetitorPricelistID: original.CompetitorPricelistID,
-		DisablePriceRefresh:   original.DisablePriceRefresh,
-		OnlyInStock:           original.OnlyInStock,
-	}
-
-	if err := s.configRepo.Create(clone); err != nil {
-		return nil, err
-	}
-
-	return clone, nil
-}
-
-func (s *ConfigurationService) ListByUser(ownerUsername string, page, perPage int) ([]models.Configuration, int64, error) {
-	if page < 1 {
-		page = 1
-	}
-	if perPage < 1 || perPage > 100 {
-		perPage = 20
-	}
-	offset := (page - 1) * perPage
-
-	return s.configRepo.ListByUser(ownerUsername, offset, perPage)
-}
-
-// ListAll returns all configurations without user filter (for use when auth is disabled)
-func (s *ConfigurationService) ListAll(page, perPage int) ([]models.Configuration, int64, error) {
-	if page < 1 {
-		page = 1
-	}
-	if perPage < 1 || perPage > 100 {
-		perPage = 20
-	}
-	offset := (page - 1) * perPage
-
-	return s.configRepo.ListAll(offset, perPage)
-}
-
-// GetByUUIDNoAuth returns configuration without ownership check (for use when auth is disabled)
-func (s *ConfigurationService) GetByUUIDNoAuth(uuid string) (*models.Configuration, error) {
-	config, err := s.configRepo.GetByUUID(uuid)
-	if err != nil {
-		return nil, ErrConfigNotFound
-	}
-	return config, nil
-}
-
-// UpdateNoAuth updates configuration without ownership check
-func (s *ConfigurationService) UpdateNoAuth(uuid string, req *CreateConfigRequest) (*models.Configuration, error) {
-	config, err := s.configRepo.GetByUUID(uuid)
-	if err != nil {
-		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.ServerModel = req.ServerModel
-	config.SupportCode = req.SupportCode
-	config.Article = req.Article
-	config.PricelistID = pricelistID
-	config.WarehousePricelistID = req.WarehousePricelistID
-	config.CompetitorPricelistID = req.CompetitorPricelistID
-	config.DisablePriceRefresh = req.DisablePriceRefresh
-	config.OnlyInStock = req.OnlyInStock
-
-	if err := s.configRepo.Update(config); err != nil {
-		return nil, err
-	}
-
-	return config, nil
-}
-
-// DeleteNoAuth deletes configuration without ownership check
-func (s *ConfigurationService) DeleteNoAuth(uuid string) error {
-	config, err := s.configRepo.GetByUUID(uuid)
-	if err != nil {
-		return ErrConfigNotFound
-	}
-	return s.configRepo.Delete(config.ID)
-}
-
-// RenameNoAuth renames configuration without ownership check
-func (s *ConfigurationService) RenameNoAuth(uuid string, newName string) (*models.Configuration, error) {
-	config, err := s.configRepo.GetByUUID(uuid)
-	if err != nil {
-		return nil, ErrConfigNotFound
-	}
-
-	config.Name = newName
-	if err := s.configRepo.Update(config); err != nil {
-		return nil, err
-	}
-
-	return config, nil
-}
-
-// 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 {
-		total *= float64(original.ServerCount)
-	}
-
-	clone := &models.Configuration{
-		UUID:          uuid.New().String(),
-		OwnerUsername: ownerUsername,
-		ProjectUUID:   resolvedProjectUUID,
-		Name:          newName,
-		Items:         original.Items,
-		TotalPrice:    &total,
-		CustomPrice:   original.CustomPrice,
-		Notes:         original.Notes,
-		IsTemplate:    false,
-		ServerCount:   original.ServerCount,
-		PricelistID:   original.PricelistID,
-		OnlyInStock:   original.OnlyInStock,
-	}
-
-	if err := s.configRepo.Create(clone); err != nil {
-		return nil, err
-	}
-
-	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)
-	if err != nil {
-		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
-			continue
-		}
-
-		updatedItems[i] = models.ConfigItem{
-			LotName:   item.LotName,
-			Quantity:  item.Quantity,
-			UnitPrice: *metadata.CurrentPrice,
-		}
-	}
-
-	config.Items = updatedItems
-	total := updatedItems.Total()
-	if config.ServerCount > 1 {
-		total *= float64(config.ServerCount)
-	}
-
-	config.TotalPrice = &total
-	if latestPricelistID != nil {
-		config.PricelistID = latestPricelistID
-	}
-	now := time.Now()
-	config.PriceUpdatedAt = &now
-
-	if err := s.configRepo.Update(config); err != nil {
-		return nil, err
-	}
-
-	return config, nil
-}
-
-func (s *ConfigurationService) ListTemplates(page, perPage int) ([]models.Configuration, int64, error) {
-	if page < 1 {
-		page = 1
-	}
-	if perPage < 1 || perPage > 100 {
-		perPage = 20
-	}
-	offset := (page - 1) * perPage
-
-	return s.configRepo.ListTemplates(offset, perPage)
-}
-
-// RefreshPrices updates all component prices in the configuration with current prices
-func (s *ConfigurationService) RefreshPrices(uuid string, ownerUsername string) (*models.Configuration, error) {
-	config, err := s.configRepo.GetByUUID(uuid)
-	if err != nil {
-		return nil, ErrConfigNotFound
-	}
-
-	if !s.isOwner(config, ownerUsername) {
-		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
-			updatedItems[i] = item
-			continue
-		}
-
-		// Update item with current price
-		updatedItems[i] = models.ConfigItem{
-			LotName:   item.LotName,
-			Quantity:  item.Quantity,
-			UnitPrice: *metadata.CurrentPrice,
-		}
-	}
-
-	// Update configuration
-	config.Items = updatedItems
-	total := updatedItems.Total()
-
-	// If server count is greater than 1, multiply the total by server count
-	if config.ServerCount > 1 {
-		total *= float64(config.ServerCount)
-	}
-
-	config.TotalPrice = &total
-	if latestPricelistID != nil {
-		config.PricelistID = latestPricelistID
-	}
-
-	// Set price update timestamp
-	now := time.Now()
-	config.PriceUpdatedAt = &now
-
-	if err := s.configRepo.Update(config); err != nil {
-		return nil, err
-	}
-
-	return config, nil
-}
-
-func (s *ConfigurationService) isOwner(config *models.Configuration, ownerUsername string) bool {
-	if config == nil || ownerUsername == "" {
-		return false
-	}
-	return config.OwnerUsername == ownerUsername
-}
-
-// // Export configuration as JSON
-// type ConfigExport struct {
-// 	Name  string             `json:"name"`
-// 	Notes string             `json:"notes"`
-// 	Items models.ConfigItems `json:"items"`
-// }
-//
-// func (s *ConfigurationService) ExportJSON(uuid string, userID uint) ([]byte, error) {
-// 	config, err := s.GetByUUID(uuid, userID)
-// 	if err != nil {
-// 		return nil, err
-// 	}
-//
-// 	export := ConfigExport{
-// 		Name:  config.Name,
-// 		Notes: config.Notes,
-// 		Items: config.Items,
-// 	}
-//
-// 	return json.MarshalIndent(export, "", "  ")
-// }
-//
-// func (s *ConfigurationService) ImportJSON(userID uint, data []byte) (*models.Configuration, error) {
-// 	var export ConfigExport
-// 	if err := json.Unmarshal(data, &export); err != nil {
-// 		return nil, err
-// 	}
-//
-// 	req := &CreateConfigRequest{
-// 		Name:  export.Name,
-// 		Notes: export.Notes,
-// 		Items: export.Items,
-// 	}
-//
-// 	return s.Create(userID, req)
-// }

internal/services/export.go

@@ -380,7 +380,7 @@ func (s *ExportService) buildPricingExportBlock(cfg *models.Configuration, opts
 	if opts.IncludeBOM && localCfg != nil && len(localCfg.VendorSpec) > 0 {
 		coveredLots := make(map[string]struct{})
 		for _, row := range localCfg.VendorSpec {
-			rowMappings := normalizeLotMappings(row.LotMappings)
+			rowMappings := localdb.NormalizeLotMappings(row.LotMappings)
 			for _, mapping := range rowMappings {
 				coveredLots[mapping.LotName] = struct{}{}
 			}
@@ -424,21 +424,22 @@ func (s *ExportService) buildPricingExportBlock(cfg *models.Configuration, opts
 		}
 
 		for _, item := range cfg.Items {
-			if item.LotName == "" {
+			lot := models.NormalizeLotName(item.LotName)
+			if lot == "" {
 				continue
 			}
-			if _, ok := coveredLots[item.LotName]; ok {
+			if _, ok := coveredLots[lot]; ok {
 				continue
 			}
-			estimate := estimateOnlyTotal(priceMap[item.LotName].Estimate, item.UnitPrice, item.Quantity)
+			estimate := estimateOnlyTotal(priceMap[lot].Estimate, item.UnitPrice, item.Quantity)
 			block.Rows = append(block.Rows, ProjectPricingExportRow{
-				LotDisplay:  item.LotName,
+				LotDisplay:  lot,
 				VendorPN:    "—",
-				Description: componentDescriptions[item.LotName],
+				Description: componentDescriptions[lot],
 				Quantity:    exportPositiveInt(item.Quantity, 1),
 				Estimate:    estimate,
-				Stock:       totalForUnitPrice(priceMap[item.LotName].Stock, item.Quantity),
-				Competitor:  totalForUnitPrice(priceMap[item.LotName].Competitor, item.Quantity),
+				Stock:       totalForUnitPrice(priceMap[lot].Stock, item.Quantity),
+				Competitor:  totalForUnitPrice(priceMap[lot].Competitor, item.Quantity),
 			})
 		}
 		if opts.isDDP() {
@@ -665,7 +666,7 @@ func collectPricingLots(cfg *models.Configuration, localCfg *localdb.LocalConfig
 	out := make([]string, 0)
 	if includeBOM && localCfg != nil {
 		for _, row := range localCfg.VendorSpec {
-			for _, mapping := range normalizeLotMappings(row.LotMappings) {
+			for _, mapping := range localdb.NormalizeLotMappings(row.LotMappings) {
 				if _, ok := seen[mapping.LotName]; ok {
 					continue
 				}
@@ -688,28 +689,6 @@ func collectPricingLots(cfg *models.Configuration, localCfg *localdb.LocalConfig
 	return out
 }
 
-func normalizeLotMappings(mappings []localdb.VendorSpecLotMapping) []localdb.VendorSpecLotMapping {
-	if len(mappings) == 0 {
-		return nil
-	}
-	out := make([]localdb.VendorSpecLotMapping, 0, len(mappings))
-	for _, mapping := range mappings {
-		lot := strings.TrimSpace(mapping.LotName)
-		if lot == "" {
-			continue
-		}
-		qty := mapping.QuantityPerPN
-		if qty < 1 {
-			qty = 1
-		}
-		out = append(out, localdb.VendorSpecLotMapping{
-			LotName:       lot,
-			QuantityPerPN: qty,
-		})
-	}
-	return out
-}
-
 func vendorRowTotal(row localdb.VendorSpecItem) *float64 {
 	if row.TotalPrice != nil {
 		return floatPtr(*row.TotalPrice)
@@ -720,27 +699,6 @@ func vendorRowTotal(row localdb.VendorSpecItem) *float64 {
 	return floatPtr(*row.UnitPrice * float64(exportPositiveInt(row.Quantity, 1)))
 }
 
-func computeMappingTotal(priceMap map[string]pricingLevels, mappings []localdb.VendorSpecLotMapping, pnQty int, selector func(pricingLevels) *float64) *float64 {
-	if len(mappings) == 0 {
-		return nil
-	}
-	total := 0.0
-	hasValue := false
-	qty := exportPositiveInt(pnQty, 1)
-	for _, mapping := range mappings {
-		price := selector(priceMap[mapping.LotName])
-		if price == nil || *price <= 0 {
-			continue
-		}
-		total += *price * float64(qty*mapping.QuantityPerPN)
-		hasValue = true
-	}
-	if !hasValue {
-		return nil
-	}
-	return floatPtr(total)
-}
-
 // distributeManualPrice sets ManualPrice on each row proportionally based on the
 // row's Estimate share. The last row with a price absorbs rounding remainder so
 // the sum of ManualPrice values always equals manualPrice exactly.

internal/services/local_configuration.go

@@ -1813,7 +1813,8 @@ func (s *LocalConfigurationService) resolvePricelistID(pricelistID *uint) (*uint
 				}
 			}
 		}
-		return nil, fmt.Errorf("pricelist %d not available locally", *pricelistID)
+		// Pricelist not found even after sync — fall back to the latest active one.
+		slog.Warn("pricelist not available locally, falling back to latest active", "server_pricelist_id", *pricelistID)
 	}
 
 	latest, err := s.localDB.GetLatestLocalPricelist()

internal/services/quote.go

@@ -18,32 +18,22 @@ var (
 )
 
 type QuoteService struct {
-	componentRepo  *repository.ComponentRepository
-	pricelistRepo  *repository.PricelistRepository
-	localDB        *localdb.LocalDB
-	pricingService priceResolver
-	cacheMu        sync.RWMutex
-	priceCache     map[string]cachedLotPrice
-	cacheTTL       time.Duration
-}
-
-type priceResolver interface {
-	GetEffectivePrice(lotName string) (*float64, error)
+	pricelistRepo *repository.PricelistRepository
+	localDB       *localdb.LocalDB
+	cacheMu       sync.RWMutex
+	priceCache    map[string]cachedLotPrice
+	cacheTTL      time.Duration
 }
 
 func NewQuoteService(
-	componentRepo *repository.ComponentRepository,
 	pricelistRepo *repository.PricelistRepository,
 	localDB *localdb.LocalDB,
-	pricingService priceResolver,
 ) *QuoteService {
 	return &QuoteService{
-		componentRepo:  componentRepo,
-		pricelistRepo:  pricelistRepo,
-		localDB:        localDB,
-		pricingService: pricingService,
-		priceCache:     make(map[string]cachedLotPrice, 4096),
-		cacheTTL:       10 * time.Second,
+		pricelistRepo: pricelistRepo,
+		localDB:       localDB,
+		priceCache:    make(map[string]cachedLotPrice, 4096),
+		cacheTTL:      10 * time.Second,
 	}
 }
 
@@ -175,73 +165,7 @@ func (s *QuoteService) ValidateAndCalculate(req *QuoteRequest) (*QuoteValidation
 		return result, nil
 	}
 
-	if s.componentRepo == nil || s.pricingService == nil {
-		return nil, errors.New("quote calculation not available")
-	}
-
-	result := &QuoteValidationResult{
-		Valid:    true,
-		Items:    make([]QuoteItem, 0, len(req.Items)),
-		Errors:   make([]string, 0),
-		Warnings: make([]string, 0),
-	}
-
-	lotNames := make([]string, len(req.Items))
-	quantities := make(map[string]int)
-	for i, item := range req.Items {
-		lotNames[i] = item.LotName
-		quantities[item.LotName] = item.Quantity
-	}
-
-	components, err := s.componentRepo.GetMultiple(lotNames)
-	if err != nil {
-		return nil, err
-	}
-
-	componentMap := make(map[string]*models.LotMetadata)
-	for i := range components {
-		componentMap[components[i].LotName] = &components[i]
-	}
-
-	var total float64
-
-	for _, reqItem := range req.Items {
-		comp, exists := componentMap[reqItem.LotName]
-		if !exists {
-			result.Valid = false
-			result.Errors = append(result.Errors, "Component not found: "+reqItem.LotName)
-			continue
-		}
-
-		item := QuoteItem{
-			LotName:  reqItem.LotName,
-			Quantity: reqItem.Quantity,
-			HasPrice: false,
-		}
-
-		if comp.Lot != nil {
-			item.Description = comp.Lot.LotDescription
-		}
-		if comp.Category != nil {
-			item.Category = comp.Category.Code
-		}
-
-		// Get effective price (override or calculated)
-		price, err := s.pricingService.GetEffectivePrice(reqItem.LotName)
-		if err == nil && price != nil && *price > 0 {
-			item.UnitPrice = *price
-			item.TotalPrice = *price * float64(reqItem.Quantity)
-			item.HasPrice = true
-			total += item.TotalPrice
-		} else {
-			result.Warnings = append(result.Warnings, "No price available for: "+reqItem.LotName)
-		}
-
-		result.Items = append(result.Items, item)
-	}
-
-	result.Total = total
-	return result, nil
+	return nil, errors.New("quote calculation requires local database")
 }
 
 func (s *QuoteService) CalculatePriceLevels(req *PriceLevelsRequest) (*PriceLevelsResult, error) {

internal/services/quote_price_levels_test.go

@@ -13,7 +13,7 @@ import (
 func TestCalculatePriceLevels_WithMissingLevel(t *testing.T) {
 	db := newPriceLevelsTestDB(t)
 	repo := repository.NewPricelistRepository(db)
-	service := NewQuoteService(nil, repo, nil, nil)
+	service := NewQuoteService(repo, nil)
 
 	estimate := seedPricelistWithItem(t, repo, "estimate", "CPU_X", 100)
 	_ = estimate
@@ -57,7 +57,7 @@ func TestCalculatePriceLevels_WithMissingLevel(t *testing.T) {
 func TestCalculatePriceLevels_UsesExplicitPricelistIDs(t *testing.T) {
 	db := newPriceLevelsTestDB(t)
 	repo := repository.NewPricelistRepository(db)
-	service := NewQuoteService(nil, repo, nil, nil)
+	service := NewQuoteService(repo, nil)
 
 	olderEstimate := seedPricelistWithItem(t, repo, "estimate", "CPU_Y", 80)
 	seedPricelistWithItem(t, repo, "estimate", "CPU_Y", 90)

internal/services/sync/readiness.go

@@ -249,6 +249,13 @@ func (s *Service) reportClientSchemaState(mariaDB *gorm.DB, checkedAt time.Time)
 	pricelistItemsCount := s.localDB.CountAllPricelistItems()
 	componentsCount := s.localDB.CountComponents()
 	dbSizeBytes := s.localDB.DBFileSizeBytes()
+	openConfigUUIDs := s.localDB.GetOpenConfigUUIDs()
+	var openConfigUUIDsJSON *string
+	if len(openConfigUUIDs) > 0 {
+		raw, _ := json.Marshal(openConfigUUIDs)
+		s := string(raw)
+		openConfigUUIDsJSON = &s
+	}
 	return mariaDB.Exec(`
 		INSERT INTO qt_client_schema_state (
 			username, hostname, app_version,
@@ -257,9 +264,10 @@ func (s *Service) reportClientSchemaState(mariaDB *gorm.DB, checkedAt time.Time)
 			estimate_pricelist_version, warehouse_pricelist_version, competitor_pricelist_version,
 			last_sync_error_code, last_sync_error_text,
 			local_pricelist_count, pricelist_items_count, components_count, db_size_bytes,
+			open_config_uuids,
 			last_checked_at, updated_at
 		)
-		VALUES (?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?)
+		VALUES (?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?)
 		ON DUPLICATE KEY UPDATE
 			app_version = VALUES(app_version),
 			last_sync_at = VALUES(last_sync_at),
@@ -277,6 +285,7 @@ func (s *Service) reportClientSchemaState(mariaDB *gorm.DB, checkedAt time.Time)
 			pricelist_items_count = VALUES(pricelist_items_count),
 			components_count = VALUES(components_count),
 			db_size_bytes = VALUES(db_size_bytes),
+			open_config_uuids = VALUES(open_config_uuids),
 			last_checked_at = VALUES(last_checked_at),
 			updated_at = VALUES(updated_at)
 	`, username, hostname, appmeta.Version(),
@@ -285,6 +294,7 @@ func (s *Service) reportClientSchemaState(mariaDB *gorm.DB, checkedAt time.Time)
 		estimateVersion, warehouseVersion, competitorVersion,
 		lastSyncErrorCode, lastSyncErrorText,
 		localPricelistCount, pricelistItemsCount, componentsCount, dbSizeBytes,
+		openConfigUUIDsJSON,
 		checkedAt, checkedAt).Error
 }
 

internal/services/sync/service.go

@@ -630,6 +630,56 @@ func (s *Service) backfillUsedPricelistItemCategories(pricelistRepo *repository.
 	}
 }
 
+// ListActiveViewersByConfigUUIDs returns a map of configUUID → []username for users
+// who currently have those configs open (based on the last two sync cycles).
+func (s *Service) ListActiveViewersByConfigUUIDs(uuids []string) (map[string][]string, error) {
+	if len(uuids) == 0 {
+		return map[string][]string{}, nil
+	}
+	mariaDB, err := s.getDB()
+	if err != nil || mariaDB == nil {
+		return map[string][]string{}, nil
+	}
+	selfUsername := strings.ToLower(strings.TrimSpace(s.localDB.GetDBUser()))
+
+	type row struct {
+		Username       string `gorm:"column:username"`
+		OpenConfigJSON string `gorm:"column:open_config_uuids"`
+	}
+	var rows []row
+	if err := mariaDB.Raw(`
+		SELECT username, open_config_uuids
+		FROM qt_client_schema_state
+		WHERE open_config_uuids IS NOT NULL
+		  AND open_config_uuids != '[]'
+		  AND last_checked_at > NOW() - INTERVAL 10 MINUTE
+	`).Scan(&rows).Error; err != nil {
+		return map[string][]string{}, nil
+	}
+
+	wantSet := make(map[string]struct{}, len(uuids))
+	for _, u := range uuids {
+		wantSet[u] = struct{}{}
+	}
+
+	result := make(map[string][]string)
+	for _, r := range rows {
+		if strings.ToLower(strings.TrimSpace(r.Username)) == selfUsername {
+			continue
+		}
+		var openUUIDs []string
+		if err := json.Unmarshal([]byte(r.OpenConfigJSON), &openUUIDs); err != nil {
+			continue
+		}
+		for _, ou := range openUUIDs {
+			if _, ok := wantSet[ou]; ok {
+				result[ou] = append(result[ou], r.Username)
+			}
+		}
+	}
+	return result, nil
+}
+
 // ListUserSyncStatuses returns users who have recorded a client schema state check.
 func (s *Service) ListUserSyncStatuses(onlineThreshold time.Duration) ([]UserSyncStatus, error) {
 	mariaDB, err := s.getDB()

releases/v2.22/RELEASE_NOTES.md

@@ -0,0 +1,23 @@
+# QuoteForge v2.22
+
+Дата релиза: 2026-06-26
+Тег: `v2.22`
+
+## Что нового
+
+### Исправления
+
+- **MB-автокомплит в конфигураторе теперь работает в offline-режиме.** Корневая причина: прайслист мог быть синхронизирован до введения нормализации имён лотов, из-за чего SQLite хранил их в исходном регистре (`MB_AMD_2.Rome_...`). Запрос на поиск цены отправлял уже нормализованное имя (`MB_AMD_2.ROME_...`), `IN`-сравнение в SQLite регистрозависимо — совпадений не было, цена возвращалась как null, и автокомплит показывал пустой список. Все запросы к `local_pricelist_items` по `lot_name` переведены на `UPPER(lot_name)`.
+
+- **Удалён мёртвый код инференса категории из имени лота.** Функция `getCategoryFromLotName` на фронтенде выводила категорию из префикса лота (`DKC_AFF_A1K` → `DKC`) как fallback. Категория всегда приходит из прайслиста; функция удалена. Позиции без категории корректно попадают во вкладку «Other».
+
+- **Удалена таблица `local_components` и весь связанный с ней код.** Источник данных для компонентов — только `local_pricelist_items`. Убраны маршрут `POST /api/sync/components`, поля `ComponentsSynced` и `LastComponentSync` в ответах синхронизации.
+
+- **Support bundle расширен диагностическими файлами:** `latest_pricelist_items.json` (все позиции активного estimate-прайслиста), `autocomplete_lots.json` (позиции по категориям с флагом `has_price`), `local.db` (полная копия SQLite-базы).
+
+- **Регистронезависимые сравнения lot_name на фронтенде:** Set-коллекции для склада, добавленных позиций и корзины BOM теперь нормализуют ключи через `.toUpperCase()`.
+
+## Запуск на macOS
+
+Снимите карантинный атрибут через терминал: `xattr -d com.apple.quarantine /path/to/qfs-darwin-arm64`  
+После этого бинарник запустится без предупреждения Gatekeeper.

releases/v2.23/RELEASE_NOTES.md

@@ -0,0 +1,23 @@
+# QuoteForge v2.23
+
+Дата релиза: 2026-06-26
+Тег: `v2.23`
+
+## Что нового
+
+### Исправления
+
+- **Конфигуратор больше не зависает на «Загрузка...».** При открытии сохранённой конфигурации поле `category` у позиций корзины было `undefined` (в `config.items` хранятся только `lot_name/quantity/unit_price`), что приводило к `TypeError` в JS. Теперь после загрузки `allComponents` корзина обогащается категориями из справочника компонентов.
+
+- **Регистронезависимые сравнения категорий в конфигураторе.** Все сравнения `category` переведены на хелпер `ciStr()` вместо принудительного `.toUpperCase()` — интерфейс показывает категории как есть, логика сравнения регистронезависима.
+
+- **Вкладка Other показывает только компоненты без назначенной категории.** Исправлена ошибка при которой компоненты DKC/CTL/ENC попадали в Other при режиме «server»: `ASSIGNED_CATEGORIES` пересобирался из отфильтрованного списка, а не из полного статического. Теперь используется `_allCategories`.
+
+- **Исправлена ошибка «record not found» при синхронизации проектов.** `UpsertByUUID` передавал ненулевой `ID` в `INSERT … ON DUPLICATE KEY UPDATE`, из-за чего MariaDB разрешала коллизию по первичному ключу чужой строки, не обновляя `uuid`, — последующий `SELECT` не находил запись. Теперь `project.ID` сбрасывается в `0` до вставки.
+
+- **Устранён бесконечный retry при ошибках синхронизации на стороне сервера.** `RepairPendingChanges` сбрасывал счётчик попыток даже если локальные данные не менялись, что создавало бесконечный цикл при серверных ошибках. Repair-функции теперь возвращают `(bool, error)` и сброс происходит только при `modified=true`.
+
+## Запуск на macOS
+
+Снимите карантинный атрибут через терминал: `xattr -d com.apple.quarantine /path/to/qfs-darwin-arm64`  
+После этого бинарник запустится без предупреждения Gatekeeper.

releases/v2.24/RELEASE_NOTES.md

@@ -0,0 +1,15 @@
+# QuoteForge v2.24
+
+Дата релиза: 2026-06-26
+Тег: `v2.24`
+
+## Что нового
+
+### Исправления
+
+- **Исправлен ReferenceError в конфигураторе при выборе компонента в секционированных вкладках (Storage, PCI).** Переменная `sectionCategories` не была определена — опечатка, должно быть `section.categories`. Ошибка возникала при клике на элемент автокомплита во вкладках с секциями.
+
+## Запуск на macOS
+
+Снимите карантинный атрибут через терминал: `xattr -d com.apple.quarantine /path/to/qfs-darwin-arm64`  
+После этого бинарник запустится без предупреждения Gatekeeper.

releases/v2.25/RELEASE_NOTES.md

@@ -0,0 +1,17 @@
+# QuoteForge v2.25
+
+Дата релиза: 2026-06-29
+Тег: `v2.25`
+
+Предыдущий релиз: `v2.24`
+
+## Ключевые изменения
+
+- исправлено дублирование позиций в таблице «Цена покупки» и в экспорте CSV: сопоставление LOT между BOM и корзиной теперь регистронезависимое;
+- нормализация LOT-маппингов BOM сведена в единую каноничную функцию на бэкенде (UPPERCASE + схлопывание дублей) — устранены разошедшиеся копии, дававшие разный результат на фронте и в CSV;
+- единый источник категории LOT — `local_pricelist_items.lot_category`; удалён неиспользуемый серверный слой управления компонентами/категориями.
+
+## Запуск на macOS
+
+Снимите карантинный атрибут через терминал: `xattr -d com.apple.quarantine /path/to/qfs-darwin-arm64`  
+После этого бинарник запустится без предупреждения Gatekeeper.

releases/v2.26/RELEASE_NOTES.md

@@ -0,0 +1,17 @@
+# QuoteForge v2.26
+
+Дата релиза: 2026-06-29
+Тег: `v2.26`
+
+Предыдущий релиз: `v2.25`
+
+## Ключевые изменения
+
+- fix: лоты, отсутствующие в текущем прайслисте, больше не блокируют сохранение конфига и генерацию артикула — такие лоты просто пропускаются;
+- fix: если прайслист конфига удалён с сервера, автоматически выбирается последний активный;
+- refactor: удалён мёртвый код qt_lot_metadata;
+
+## Запуск на macOS
+
+Снимите карантинный атрибут через терминал: `xattr -d com.apple.quarantine /path/to/qfs-darwin-arm64`  
+После этого бинарник запустится без предупреждения Gatekeeper.

releases/v2.27/RELEASE_NOTES.md

@@ -0,0 +1,15 @@
+# QuoteForge v2.27
+
+Дата релиза: 2026-06-30
+Тег: `v2.27`
+
+Предыдущий релиз: `v2.26`
+
+## Ключевые изменения
+
+- в таблицах конфигураций появилась иконка глаза — показывает, что конфигурацию сейчас открыл другой пользователь; при наведении виден список имён;
+
+## Запуск на macOS
+
+Снимите карантинный атрибут через терминал: `xattr -d com.apple.quarantine /path/to/qfs-darwin-arm64`  
+После этого бинарник запустится без предупреждения Gatekeeper.

web/templates/configs.html

@@ -242,6 +242,7 @@ function renderConfigs(configs) {
     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-2 py-3 w-8"></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">';
 
@@ -298,6 +299,16 @@ function renderConfigs(configs) {
         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>';
+        const viewers = c.viewers || [];
+        if (viewers.length > 0) {
+            const names = viewers.map(escapeHtml).join(', ');
+            html += '<td class="px-2 py-3 text-center w-8">';
+            html += '<span title="Открыта: ' + names + '" class="inline-flex items-center justify-center text-blue-500 cursor-default">';
+            html += '<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="M15 12a3 3 0 11-6 0 3 3 0 016 0z"></path><path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M2.458 12C3.732 7.943 7.523 5 12 5c4.478 0 8.268 2.943 9.542 7-1.274 4.057-5.064 7-9.542 7-4.477 0-8.268-2.943-9.542-7z"></path></svg>';
+            html += '</span></td>';
+        } else {
+            html += '<td class="px-2 py-3 w-8"></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">';

web/templates/index.html

@@ -417,7 +417,7 @@ let TAB_CONFIG = {
 
 let ASSIGNED_CATEGORIES = Object.values(TAB_CONFIG)
     .flatMap(t => t.categories)
-    .map(c => c.toUpperCase());
+    .map(c => ciStr(c));
 
 // State
 let configUUID = '{{.ConfigUUID}}';
@@ -760,16 +760,16 @@ async function loadCategoriesFromAPI() {
         // Build category order map
         categoryOrderMap = {};
         cats.forEach(cat => {
-            categoryOrderMap[cat.code.toUpperCase()] = cat.display_order;
+            categoryOrderMap[ciStr(cat.code)] = cat.display_order;
         });
 
         // Build list of unassigned categories
         const knownCodes = Object.values(TAB_CONFIG)
             .flatMap(t => t.categories)
-            .map(c => c.toUpperCase());
+            .map(c => ciStr(c));
 
         const unassignedCategories = cats
-            .filter(cat => !knownCodes.includes(cat.code.toUpperCase()))
+            .filter(cat => !knownCodes.includes(ciStr(cat.code)))
             .sort((a, b) => a.display_order - b.display_order)
             .map(cat => cat.code);
 
@@ -779,7 +779,7 @@ async function loadCategoriesFromAPI() {
         // Rebuild ASSIGNED_CATEGORIES
         ASSIGNED_CATEGORIES = Object.values(TAB_CONFIG)
             .flatMap(t => t.categories)
-            .map(c => c.toUpperCase());
+            .map(c => ciStr(c));
     } catch(e) {
         console.error('Failed to load categories, using defaults', e);
         // Will use default configuration if API fails
@@ -824,7 +824,7 @@ function applyServerSettings(settings) {
             };
         });
         TAB_CONFIG.other = otherTab || { categories: [], singleSelect: false, label: 'Other' };
-        ASSIGNED_CATEGORIES = Object.values(TAB_CONFIG).flatMap(t => t.categories).map(c => c.toUpperCase());
+        ASSIGNED_CATEGORIES = Object.values(TAB_CONFIG).flatMap(t => t.categories).map(c => ciStr(c));
     }
 
     // always_visible_tabs
@@ -953,6 +953,10 @@ document.addEventListener('DOMContentLoaded', async function() {
         loadAllComponents(),
         categoriesPromise,
     ]);
+    cart = cart.map(item => ({
+        ...item,
+        category: item.category || allComponents.find(c => c.lot_name.toUpperCase() === (item.lot_name || '').toUpperCase())?.category || ''
+    }));
     syncPriceSettingsControls();
     renderPricelistSettingsSummary();
     updateRefreshPricesButtonState();
@@ -981,6 +985,16 @@ document.addEventListener('DOMContentLoaded', async function() {
     if (configUUID) {
         loadVendorSpec(configUUID);
     }
+
+    // Presence: announce that this config is open and keep renewing every 4 min
+    if (configUUID) {
+        const sendPresence = () => fetch('/api/configs/' + configUUID + '/presence', {method: 'POST'}).catch(() => {});
+        sendPresence();
+        setInterval(sendPresence, 4 * 60 * 1000);
+        window.addEventListener('beforeunload', () => {
+            fetch('/api/configs/' + configUUID + '/presence', {method: 'DELETE', keepalive: true}).catch(() => {});
+        });
+    }
 });
 
 async function loadAllComponents() {
@@ -1218,14 +1232,16 @@ function applyPriceSettings() {
     schedulePriceLevelsRefresh({ delay: 0, rerender: true, autosave: true });
 }
 
+function ciStr(s) { return (s || '').toLowerCase(); }
+
 function getComponentCategory(comp) {
-    return (comp.category || '').toUpperCase();
+    return comp.category || '';
 }
 
 function getTabForCategory(category) {
-    const cat = category.toUpperCase();
+    const cat = ciStr(category);
     for (const [tabKey, tabConfig] of Object.entries(TAB_CONFIG)) {
-        if (tabConfig.categories.map(c => c.toUpperCase()).includes(cat)) {
+        if (tabConfig.categories.some(c => ciStr(c) === cat)) {
             return tabKey;
         }
     }
@@ -1303,10 +1319,11 @@ function applyConfigTypeToTabs() {
         }
     });
 
-    // Rebuild assigned categories index
+    // Rebuild assigned categories index using the full static list (_allCategories),
+    // not the filtered one — hidden categories still belong to their tab, not to Other.
     ASSIGNED_CATEGORIES = Object.values(TAB_CONFIG)
-        .flatMap(t => t.categories)
-        .map(c => c.toUpperCase());
+        .flatMap(t => t._allCategories || t.categories)
+        .map(c => ciStr(c));
 }
 
 function updateTabVisibility() {
@@ -1317,8 +1334,7 @@ function updateTabVisibility() {
         if (!btn) continue;
         const hasComponents = getComponentsForTab(tabId).length > 0;
         const hasCartItems = cart.some(item => {
-            const cat = (item.category || '').toUpperCase();
-            return getTabForCategory(cat) === tabId;
+            return getTabForCategory(item.category) === tabId;
         });
         const visible = hasComponents || hasCartItems;
         btn.classList.toggle('hidden', !visible);
@@ -1334,15 +1350,15 @@ function getComponentsForTab(tab) {
     return allComponents.filter(comp => {
         const category = getComponentCategory(comp);
         if (tab === 'other') {
-            return !ASSIGNED_CATEGORIES.includes(category);
+            return !ASSIGNED_CATEGORIES.includes(ciStr(category));
         }
-        return config.categories.map(c => c.toUpperCase()).includes(category);
+        return config.categories.some(c => ciStr(c) === ciStr(category));
     });
 }
 
 function getComponentsForCategory(category) {
     return allComponents.filter(comp => {
-        return getComponentCategory(comp) === category.toUpperCase();
+        return ciStr(getComponentCategory(comp)) === ciStr(category);
     });
 }
 
@@ -1404,7 +1420,7 @@ function renderSingleSelectTab(categories) {
     categories.forEach(cat => {
         const catLabel = cat === 'MB' ? 'MB' : cat === 'CPU' ? 'CPU' : cat === 'MEM' ? 'MEM' : cat;
         const selectedItem = cart.find(item =>
-            (item.category).toUpperCase() === cat.toUpperCase()
+            ciStr(item.category) === ciStr(cat)
         );
 
         const comp = selectedItem ? allComponents.find(c => c.lot_name.toUpperCase() === (selectedItem.lot_name || '').toUpperCase()) : null;
@@ -1457,9 +1473,7 @@ function renderSingleSelectTab(categories) {
 function renderMultiSelectTab(components) {
     // Get cart items for this tab
     const tabItems = cart.filter(item => {
-        const cat = (item.category).toUpperCase();
-        const tab = getTabForCategory(cat);
-        return tab === currentTab;
+        return getTabForCategory(item.category) === currentTab;
     });
 
     let html = `
@@ -1546,9 +1560,7 @@ function renderMultiSelectTab(components) {
 function renderMultiSelectTabWithSections(sections) {
     // Get cart items for this tab
     const tabItems = cart.filter(item => {
-        const cat = (item.category).toUpperCase();
-        const tab = getTabForCategory(cat);
-        return tab === currentTab;
+        return getTabForCategory(item.category) === currentTab;
     });
 
     let html = '';
@@ -1556,17 +1568,14 @@ function renderMultiSelectTabWithSections(sections) {
 
     sections.forEach((section, sectionIdx) => {
         // Get components for this section's categories
-        const sectionCategories = section.categories.map(c => c.toUpperCase());
         const sectionComponents = allComponents.filter(comp => {
-            const category = getComponentCategory(comp);
-            return sectionCategories.includes(category);
+            return section.categories.some(c => ciStr(c) === ciStr(getComponentCategory(comp)));
         });
         totalComponents += sectionComponents.length;
 
         // Get cart items for this section
         const sectionItems = tabItems.filter(item => {
-            const cat = (item.category).toUpperCase();
-            return sectionCategories.includes(cat);
+            return section.categories.some(c => ciStr(c) === ciStr(item.category));
         });
 
         // Section header
@@ -1806,7 +1815,7 @@ function selectAutocompleteItem(index) {
 
     // Remove existing item of this category
     cart = cart.filter(item =>
-        (item.category).toUpperCase() !== autocompleteCategory.toUpperCase()
+        ciStr(item.category) !== ciStr(autocompleteCategory)
     );
 
     const qtyInput = document.getElementById('qty-' + autocompleteCategory);
@@ -2189,7 +2198,7 @@ function selectAutocompleteItemBOM(index, rowIdx) {
 
 function clearSingleSelect(category) {
     cart = cart.filter(item =>
-        (item.category).toUpperCase() !== category.toUpperCase()
+        ciStr(item.category) !== ciStr(category)
     );
     renderTab();
     updateCartUI();
@@ -2199,7 +2208,7 @@ function clearSingleSelect(category) {
 function updateSingleQuantity(category, value) {
     const qty = parseInt(value) || 1;
     const item = cart.find(i =>
-        (i.category).toUpperCase() === category.toUpperCase()
+        ciStr(i.category) === ciStr(category)
     );
 
     if (item) {
@@ -2258,8 +2267,8 @@ function updateCartUI() {
 
     // Sort cart items by category display order
     const sortedCart = [...cart].sort((a, b) => {
-        const catA = (a.category).toUpperCase();
-        const catB = (b.category).toUpperCase();
+        const catA = ciStr(a.category);
+        const catB = ciStr(b.category);
         const orderA = categoryOrderMap[catA] || 9999;
         const orderB = categoryOrderMap[catB] || 9999;
         return orderA - orderB;
@@ -2267,8 +2276,7 @@ function updateCartUI() {
 
     const grouped = {};
     sortedCart.forEach(item => {
-        const cat = item.category;
-        const tab = getTabForCategory(cat);
+        const tab = getTabForCategory(item.category);
         if (!grouped[tab]) grouped[tab] = [];
         grouped[tab].push(item);
     });
@@ -2276,11 +2284,11 @@ function updateCartUI() {
     // Sort tabs by minimum display order of their categories
     const sortedTabs = Object.entries(grouped).sort((a, b) => {
         const minOrderA = Math.min(...a[1].map(item => {
-            const cat = (item.category).toUpperCase();
+            const cat = ciStr(item.category);
             return categoryOrderMap[cat] || 9999;
         }));
         const minOrderB = Math.min(...b[1].map(item => {
-            const cat = (item.category).toUpperCase();
+            const cat = ciStr(item.category);
             return categoryOrderMap[cat] || 9999;
         }));
         return minOrderA - minOrderB;
@@ -2731,8 +2739,8 @@ function renderSalePriceTable() {
     }
 
     const sortedCart = [...cart].sort((a, b) => {
-        const catA = (a.category).toUpperCase();
-        const catB = (b.category).toUpperCase();
+        const catA = ciStr(a.category);
+        const catB = ciStr(b.category);
         const orderA = categoryOrderMap[catA] || 9999;
         const orderB = categoryOrderMap[catB] || 9999;
         return orderA - orderB;
@@ -2835,8 +2843,8 @@ function calculateCustomPrice() {
     // Build adjusted prices table
     // Sort cart items by category display order
     const sortedCart = [...cart].sort((a, b) => {
-        const catA = (a.category).toUpperCase();
-        const catB = (b.category).toUpperCase();
+        const catA = ciStr(a.category);
+        const catB = ciStr(b.category);
         const orderA = categoryOrderMap[catA] || 9999;
         const orderB = categoryOrderMap[catB] || 9999;
         return orderA - orderB;
@@ -3381,8 +3389,9 @@ function setBOMManualLotDraft(rowIdx, value, el) {
 
 function _getRowAllocations(row) {
     const list = Array.isArray(row?.lot_allocations) ? row.lot_allocations : [];
+    // Canonical LOT identity is UPPERCASE (see NormalizeLotName on the backend).
     return list.map(a => ({
-        lot_name: (a?.lot_name || '').trim(),
+        lot_name: (a?.lot_name || '').trim().toUpperCase(),
         quantity: Math.max(1, parseInt(a?.quantity, 10) || 1)
     }));
 }
@@ -3391,9 +3400,11 @@ function _getRowLotQtyPerPN(row) {
     return (Number.isFinite(q) && q > 0) ? q : 1;
 }
 function _getRowBaseLot(row) {
-    if (row?.resolved_lot) return row.resolved_lot;
+    // Canonical LOT identity is UPPERCASE (see NormalizeLotName on the backend).
+    const resolved = (row?.resolved_lot || '').trim();
+    if (resolved) return resolved.toUpperCase();
     const manual = (row?.manual_lot || '').trim();
-    if (manual && _bomLotValid(manual)) return manual;
+    if (manual && _bomLotValid(manual)) return manual.toUpperCase();
     return '';
 }
 function _getRowCanonicalLotMappings(row) {
@@ -4041,40 +4052,39 @@ async function renderPricingTab() {
     const tfootSale = document.getElementById('pricing-foot-sale');
 
     const cart = window._currentCart || [];
+    // Canonical LOT key: matching/dedup must be case-insensitive (cart is UPPERCASE,
+    // BOM mappings may be mixed-case). See NormalizeLotName on the backend.
+    const U = s => (s || '').toUpperCase();
     const compMap = {};
-    (window._bomAllComponents || allComponents).forEach(c => { compMap[c.lot_name] = c; });
-    const rowBaseLot = (row) => {
-        if (row?.resolved_lot) return row.resolved_lot;
-        if (row?.manual_lot && _bomLotValid(row.manual_lot)) return row.manual_lot;
-        return '';
-    };
+    (window._bomAllComponents || allComponents).forEach(c => { compMap[U(c.lot_name)] = c; });
+    const rowBaseLot = (row) => _getRowBaseLot(row);
 
     // Collect LOTs to price: from BOM rows (resolved) or from cart
     // Use cart quantity when available (source of truth); fall back to BOM-computed quantity.
     const _cartQtyMap = {};
-    cart.forEach(item => { if (item?.lot_name) _cartQtyMap[item.lot_name] = item.quantity; });
+    cart.forEach(item => { if (item?.lot_name) _cartQtyMap[U(item.lot_name)] = item.quantity; });
     let itemsForPriceLevels = [];
     if (bomRows.length) {
         const seen = new Set();
         bomRows.forEach(row => {
             const baseLot = rowBaseLot(row);
             const allocs = _getRowAllocations(row).filter(a => a.lot_name && _bomLotValid(a.lot_name) && a.quantity >= 1);
-            if (baseLot && !seen.has(baseLot)) {
-                seen.add(baseLot);
-                itemsForPriceLevels.push({ lot_name: baseLot, quantity: _cartQtyMap[baseLot] ?? (row.quantity * _getRowLotQtyPerPN(row)) });
+            if (baseLot && !seen.has(U(baseLot))) {
+                seen.add(U(baseLot));
+                itemsForPriceLevels.push({ lot_name: baseLot, quantity: _cartQtyMap[U(baseLot)] ?? (row.quantity * _getRowLotQtyPerPN(row)) });
             }
             if (allocs.length) {
                 allocs.forEach(a => {
-                    if (!seen.has(a.lot_name)) {
-                        seen.add(a.lot_name);
-                        itemsForPriceLevels.push({ lot_name: a.lot_name, quantity: _cartQtyMap[a.lot_name] ?? (row.quantity * a.quantity) });
+                    if (!seen.has(U(a.lot_name))) {
+                        seen.add(U(a.lot_name));
+                        itemsForPriceLevels.push({ lot_name: a.lot_name, quantity: _cartQtyMap[U(a.lot_name)] ?? (row.quantity * a.quantity) });
                     }
                 });
             }
         });
         cart.forEach(item => {
-            if (!item?.lot_name || seen.has(item.lot_name)) return;
-            seen.add(item.lot_name);
+            if (!item?.lot_name || seen.has(U(item.lot_name))) return;
+            seen.add(U(item.lot_name));
             itemsForPriceLevels.push({ lot_name: item.lot_name, quantity: item.quantity });
         });
     } else {
@@ -4099,7 +4109,7 @@ async function renderPricingTab() {
             });
             if (resp.ok) {
                 const data = await resp.json();
-                (data.items || []).forEach(i => { priceMap[i.lot_name] = i; });
+                (data.items || []).forEach(i => { priceMap[U(i.lot_name)] = i; });
             }
         } catch(e) { /* silent */ }
     }
@@ -4121,19 +4131,19 @@ async function renderPricingTab() {
     // ─── Build shared row data (unit prices for display, totals for math) ────
     // Each BOM row is exploded into per-LOT sub-rows; grouped by vendor PN via groupStart/groupSize.
     const cartQtyMap = {};
-    cart.forEach(item => { if (item?.lot_name) cartQtyMap[item.lot_name] = item.quantity; });
+    cart.forEach(item => { if (item?.lot_name) cartQtyMap[U(item.lot_name)] = item.quantity; });
     const _buildRows = () => {
         const result = [];
         const coveredLots = new Set();
 
         const _pushCartRow = (item, isEstOnly) => {
-            const pl = priceMap[item.lot_name];
+            const pl = priceMap[U(item.lot_name)];
             const u  = _getUnitPrices(pl);
             const estUnit = u.estUnit > 0 ? u.estUnit : (item.unit_price || 0);
             result.push({
                 lotCell: escapeHtml(item.lot_name), lotText: item.lot_name,
                 vendorPN: null,
-                desc: (compMap[item.lot_name] || {}).description || '',
+                desc: (compMap[U(item.lot_name)] || {}).description || '',
                 qty: item.quantity,
                 estUnit, warehouseUnit: u.warehouseUnit, competitorUnit: u.competitorUnit,
                 est:        estUnit * item.quantity,
@@ -4146,32 +4156,32 @@ async function renderPricingTab() {
 
         if (!bomRows.length) {
             const sortedByCategory = [...cart].sort((a, b) => {
-                const catA = (a.category).toUpperCase();
-                const catB = (b.category).toUpperCase();
+                const catA = ciStr(a.category);
+                const catB = ciStr(b.category);
                 return (categoryOrderMap[catA] || 9999) - (categoryOrderMap[catB] || 9999);
             });
-            sortedByCategory.forEach(item => { _pushCartRow(item, false); coveredLots.add(item.lot_name); });
+            sortedByCategory.forEach(item => { _pushCartRow(item, false); coveredLots.add(U(item.lot_name)); });
             return { result, coveredLots };
         }
 
         bomRows.forEach(row => {
             const baseLot = rowBaseLot(row);
             const allocs  = _getRowAllocations(row).filter(a => a.lot_name && _bomLotValid(a.lot_name) && a.quantity >= 1);
-            if (baseLot) coveredLots.add(baseLot);
-            allocs.forEach(a => coveredLots.add(a.lot_name));
+            if (baseLot) coveredLots.add(U(baseLot));
+            allocs.forEach(a => coveredLots.add(U(a.lot_name)));
 
             const vendorOrigUnit = row.unit_price != null ? row.unit_price
                 : (row.total_price != null && row.quantity > 0 ? row.total_price / row.quantity : null);
             const vendorOrig = row.total_price != null ? row.total_price
                 : (row.unit_price != null ? row.unit_price * row.quantity : null);
-            const desc = row.description || (baseLot ? ((compMap[baseLot] || {}).description || '') : '');
+            const desc = row.description || (baseLot ? ((compMap[U(baseLot)] || {}).description || '') : '');
 
             // Build per-LOT sub-rows
             const subRows = [];
             if (baseLot) {
-                const u = _getUnitPrices(priceMap[baseLot]);
+                const u = _getUnitPrices(priceMap[U(baseLot)]);
                 const lotQty = _getRowLotQtyPerPN(row);
-                const qty = cartQtyMap[baseLot] ?? (row.quantity * lotQty);
+                const qty = cartQtyMap[U(baseLot)] ?? (row.quantity * lotQty);
                 subRows.push({
                     lotCell: escapeHtml(baseLot), lotText: baseLot, qty,
                     estUnit: u.estUnit > 0 ? u.estUnit : 0,
@@ -4182,8 +4192,8 @@ async function renderPricingTab() {
                 });
             }
             allocs.forEach(a => {
-                const u = _getUnitPrices(priceMap[a.lot_name]);
-                const qty = cartQtyMap[a.lot_name] ?? (row.quantity * a.quantity);
+                const u = _getUnitPrices(priceMap[U(a.lot_name)]);
+                const qty = cartQtyMap[U(a.lot_name)] ?? (row.quantity * a.quantity);
                 subRows.push({
                     lotCell: escapeHtml(a.lot_name), lotText: a.lot_name, qty,
                     estUnit: u.estUnit > 0 ? u.estUnit : 0,
@@ -4225,9 +4235,9 @@ async function renderPricingTab() {
 
         // Estimate-only LOTs (cart items not covered by BOM)
         cart.forEach(item => {
-            if (!item?.lot_name || coveredLots.has(item.lot_name)) return;
+            if (!item?.lot_name || coveredLots.has(U(item.lot_name))) return;
             _pushCartRow(item, true);
-            coveredLots.add(item.lot_name);
+            coveredLots.add(U(item.lot_name));
         });
 
         return { result, coveredLots };

web/templates/project_detail.html

@@ -518,7 +518,16 @@ function renderConfigs(configs) {
             html += '<td class="px-4 py-3 text-sm text-gray-500"><input type="number" min="1" value="' + serverCount + '" class="w-16 px-1 py-0.5 border rounded text-center text-sm" data-uuid="' + c.uuid + '" data-prev="' + serverCount + '" onchange="updateConfigServerCount(this)"></td>';
         }
         html += '<td class="px-4 py-3 text-sm text-right" data-total-uuid="' + c.uuid + '">' + formatMoneyNoDecimals(total) + '</td>';
-        html += '<td class="px-2 py-3 text-sm text-center text-gray-500 w-12">main</td>';
+        const projViewers = c.viewers || [];
+        if (projViewers.length > 0) {
+            const projNames = projViewers.map(escapeHtml).join(', ');
+            html += '<td class="px-2 py-3 text-center w-12">';
+            html += '<span title="Открыта: ' + projNames + '" class="inline-flex items-center justify-center text-blue-500 cursor-default">';
+            html += '<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="M15 12a3 3 0 11-6 0 3 3 0 016 0z"></path><path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M2.458 12C3.732 7.943 7.523 5 12 5c4.478 0 8.268 2.943 9.542 7-1.274 4.057-5.064 7-9.542 7-4.477 0-8.268-2.943-9.542-7z"></path></svg>';
+            html += '</span></td>';
+        } else {
+            html += '<td class="px-2 py-3 w-12"></td>';
+        }
         html += '<td class="px-4 py-3 text-sm text-right whitespace-nowrap"><div class="inline-flex items-center justify-end gap-2">';
         if (configStatusMode === 'archived') {
             html += '<button onclick="reactivateConfig(\'' + c.uuid + '\')" class="text-emerald-600 hover:text-emerald-800" title="Восстановить">';