Add project variants and UI updates

cmd/migrate_ops_projects/main.go

@@ -163,7 +163,7 @@ func buildPlan(db *gorm.DB, fallbackOwner string) ([]migrationAction, map[string
 		}
 		for i := range projects {
 			p := projects[i]
-			existingProjects[projectKey(p.OwnerUsername, p.Name)] = &p
+			existingProjects[projectKey(p.OwnerUsername, derefString(p.Name))] = &p
 		}
 	}
 
@@ -258,7 +258,8 @@ func executePlan(db *gorm.DB, actions []migrationAction, existingProjects map[st
 				project = &models.Project{
 					UUID:          uuid.NewString(),
 					OwnerUsername: action.OwnerUsername,
-					Name:          action.TargetProjectName,
+					Code:          action.TargetProjectName,
+					Name:          ptrString(action.TargetProjectName),
 					IsActive:      true,
 					IsSystem:      false,
 				}
@@ -268,7 +269,7 @@ func executePlan(db *gorm.DB, actions []migrationAction, existingProjects map[st
 				projectCache[key] = project
 			} else if !project.IsActive {
 				if err := tx.Model(&models.Project{}).Where("uuid = ?", project.UUID).Update("is_active", true).Error; err != nil {
-					return fmt.Errorf("reactivate project %s (%s): %w", project.Name, project.UUID, err)
+					return fmt.Errorf("reactivate project %s (%s): %w", derefString(project.Name), project.UUID, err)
 				}
 				project.IsActive = true
 			}
@@ -294,3 +295,14 @@ func setKeys(set map[string]struct{}) []string {
 func projectKey(owner, name string) string {
 	return owner + "||" + name
 }
+
+func derefString(value *string) string {
+	if value == nil {
+		return ""
+	}
+	return *value
+}
+
+func ptrString(value string) *string {
+	return &value
+}

cmd/qfs/main.go

@@ -50,6 +50,7 @@ const onDemandPullCooldown = 30 * time.Second
 func main() {
 	configPath := flag.String("config", "", "path to config file (default: user state dir or QFS_CONFIG_PATH)")
 	localDBPath := flag.String("localdb", "", "path to local SQLite database (default: user state dir or QFS_DB_PATH)")
+	resetLocalDB := flag.Bool("reset-localdb", false, "reset local SQLite data on startup (keeps connection settings)")
 	migrate := flag.Bool("migrate", false, "run database migrations")
 	version := flag.Bool("version", false, "show version information")
 	flag.Parse()
@@ -100,6 +101,13 @@ func main() {
 		}
 	}
 
+	if shouldResetLocalDB(*resetLocalDB) {
+		if err := localdb.ResetData(resolvedLocalDBPath); err != nil {
+			slog.Error("failed to reset local database", "error", err)
+			os.Exit(1)
+		}
+	}
+
 	// Initialize local SQLite database (always used)
 	local, err := localdb.New(resolvedLocalDBPath)
 	if err != nil {
@@ -295,6 +303,31 @@ func main() {
 	}
 }
 
+func shouldResetLocalDB(flagValue bool) bool {
+	if flagValue {
+		return true
+	}
+	value := strings.TrimSpace(os.Getenv("QFS_RESET_LOCAL_DB"))
+	if value == "" {
+		return false
+	}
+	switch strings.ToLower(value) {
+	case "1", "true", "yes", "y":
+		return true
+	default:
+		return false
+	}
+}
+
+func derefString(value *string) string {
+	if value == nil {
+		return ""
+	}
+	return *value
+}
+
+ 
+
 func setConfigDefaults(cfg *config.Config) {
 	if cfg.Server.Host == "" {
 		cfg.Server.Host = "127.0.0.1"
@@ -1306,7 +1339,10 @@ func setupRouter(cfg *config.Config, local *localdb.LocalDB, connMgr *db.Connect
 					if status == "archived" && p.IsActive {
 						continue
 					}
-					if search != "" && !strings.Contains(strings.ToLower(p.Name), search) {
+					if search != "" &&
+						!strings.Contains(strings.ToLower(derefString(p.Name)), search) &&
+						!strings.Contains(strings.ToLower(p.Code), search) &&
+						!strings.Contains(strings.ToLower(p.Variant), search) {
 						continue
 					}
 					if author != "" && !strings.Contains(strings.ToLower(strings.TrimSpace(p.OwnerUsername)), author) {
@@ -1319,8 +1355,8 @@ func setupRouter(cfg *config.Config, local *localdb.LocalDB, connMgr *db.Connect
 					left := filtered[i]
 					right := filtered[j]
 					if sortField == "name" {
-						leftName := strings.ToLower(strings.TrimSpace(left.Name))
+						leftName := strings.ToLower(strings.TrimSpace(derefString(left.Name)))
-						rightName := strings.ToLower(strings.TrimSpace(right.Name))
+						rightName := strings.ToLower(strings.TrimSpace(derefString(right.Name)))
 						if leftName == rightName {
 							if sortDir == "asc" {
 								return left.CreatedAt.Before(right.CreatedAt)
@@ -1333,8 +1369,8 @@ func setupRouter(cfg *config.Config, local *localdb.LocalDB, connMgr *db.Connect
 						return leftName > rightName
 					}
 					if left.CreatedAt.Equal(right.CreatedAt) {
-						leftName := strings.ToLower(strings.TrimSpace(left.Name))
+						leftName := strings.ToLower(strings.TrimSpace(derefString(left.Name)))
-						rightName := strings.ToLower(strings.TrimSpace(right.Name))
+						rightName := strings.ToLower(strings.TrimSpace(derefString(right.Name)))
 						if sortDir == "asc" {
 							return leftName < rightName
 						}
@@ -1393,6 +1429,8 @@ func setupRouter(cfg *config.Config, local *localdb.LocalDB, connMgr *db.Connect
 						"id":             p.ID,
 						"uuid":           p.UUID,
 						"owner_username": p.OwnerUsername,
+						"code":           p.Code,
+						"variant":        p.Variant,
 						"name":           p.Name,
 						"tracker_url":    p.TrackerURL,
 						"is_active":      p.IsActive,
@@ -1429,6 +1467,8 @@ func setupRouter(cfg *config.Config, local *localdb.LocalDB, connMgr *db.Connect
 				// Return simplified list of all projects (UUID + Name only)
 				type ProjectSimple struct {
 					UUID     string `json:"uuid"`
+					Code     string `json:"code"`
+					Variant  string `json:"variant"`
 					Name     string `json:"name"`
 					IsActive bool   `json:"is_active"`
 				}
@@ -1437,7 +1477,9 @@ func setupRouter(cfg *config.Config, local *localdb.LocalDB, connMgr *db.Connect
 				for _, p := range allProjects {
 					simplified = append(simplified, ProjectSimple{
 						UUID:     p.UUID,
-						Name:     p.Name,
+						Code:     p.Code,
+						Variant:  p.Variant,
+						Name:     derefString(p.Name),
 						IsActive: p.IsActive,
 					})
 				}
@@ -1451,14 +1493,14 @@ func setupRouter(cfg *config.Config, local *localdb.LocalDB, connMgr *db.Connect
 					c.JSON(http.StatusBadRequest, gin.H{"error": err.Error()})
 					return
 				}
-				if strings.TrimSpace(req.Name) == "" {
+				if strings.TrimSpace(req.Code) == "" {
-					c.JSON(http.StatusBadRequest, gin.H{"error": "project name is required"})
+					c.JSON(http.StatusBadRequest, gin.H{"error": "project code is required"})
 					return
 				}
 				project, err := projectService.Create(dbUsername, &req)
 				if err != nil {
 					switch {
-					case errors.Is(err, services.ErrProjectNameExists):
+					case errors.Is(err, services.ErrProjectCodeExists):
 						c.JSON(http.StatusConflict, gin.H{"error": err.Error()})
 					default:
 						c.JSON(http.StatusInternalServerError, gin.H{"error": err.Error()})
@@ -1490,14 +1532,10 @@ func setupRouter(cfg *config.Config, local *localdb.LocalDB, connMgr *db.Connect
 					c.JSON(http.StatusBadRequest, gin.H{"error": err.Error()})
 					return
 				}
-				if strings.TrimSpace(req.Name) == "" {
-					c.JSON(http.StatusBadRequest, gin.H{"error": "project name is required"})
-					return
-				}
 				project, err := projectService.Update(c.Param("uuid"), dbUsername, &req)
 				if err != nil {
 					switch {
-					case errors.Is(err, services.ErrProjectNameExists):
+					case errors.Is(err, services.ErrProjectCodeExists):
 						c.JSON(http.StatusConflict, gin.H{"error": err.Error()})
 					case errors.Is(err, services.ErrProjectNotFound):
 						c.JSON(http.StatusNotFound, gin.H{"error": err.Error()})

cmd/qfs/versioning_api_test.go

@@ -149,7 +149,7 @@ func TestProjectArchiveHidesConfigsAndCloneIntoProject(t *testing.T) {
 		t.Fatalf("setup router: %v", err)
 	}
 
-	createProjectReq := httptest.NewRequest(http.MethodPost, "/api/projects", bytes.NewReader([]byte(`{"name":"P1"}`)))
+	createProjectReq := httptest.NewRequest(http.MethodPost, "/api/projects", bytes.NewReader([]byte(`{"name":"P1","code":"P1"}`)))
 	createProjectReq.Header.Set("Content-Type", "application/json")
 	createProjectRec := httptest.NewRecorder()
 	router.ServeHTTP(createProjectRec, createProjectReq)
@@ -243,7 +243,7 @@ func TestConfigMoveToProjectEndpoint(t *testing.T) {
 		t.Fatalf("setup router: %v", err)
 	}
 
-	createProjectReq := httptest.NewRequest(http.MethodPost, "/api/projects", bytes.NewReader([]byte(`{"name":"Move Project"}`)))
+	createProjectReq := httptest.NewRequest(http.MethodPost, "/api/projects", bytes.NewReader([]byte(`{"name":"Move Project","code":"MOVE"}`)))
 	createProjectReq.Header.Set("Content-Type", "application/json")
 	createProjectRec := httptest.NewRecorder()
 	router.ServeHTTP(createProjectRec, createProjectReq)

internal/handlers/export.go

@@ -66,7 +66,7 @@ func (h *ExportHandler) ExportCSV(c *gin.Context) {
 		// Try to load project name from database
 		username := middleware.GetUsername(c)
 		if project, err := h.projectService.GetByUUID(req.ProjectUUID, username); err == nil && project != nil {
-			projectName = project.Name
+			projectName = derefString(project.Name)
 		}
 	}
 	if projectName == "" {
@@ -90,6 +90,13 @@ func (h *ExportHandler) ExportCSV(c *gin.Context) {
 	}
 }
 
+func derefString(value *string) string {
+	if value == nil {
+		return ""
+	}
+	return *value
+}
+
 func (h *ExportHandler) buildExportData(req *ExportRequest) *services.ExportData {
 	items := make([]services.ExportItem, len(req.Items))
 	var total float64
@@ -171,7 +178,7 @@ func (h *ExportHandler) ExportConfigCSV(c *gin.Context) {
 	projectName := config.Name // fallback: use config name if no project
 	if config.ProjectUUID != nil && *config.ProjectUUID != "" {
 		if project, err := h.projectService.GetByUUID(*config.ProjectUUID, username); err == nil && project != nil {
-			projectName = project.Name
+		projectName = derefString(project.Name)
 		}
 	}
 

internal/localdb/converters.go

@@ -106,6 +106,8 @@ func ProjectToLocal(project *models.Project) *LocalProject {
 	local := &LocalProject{
 		UUID:          project.UUID,
 		OwnerUsername: project.OwnerUsername,
+		Code:          project.Code,
+		Variant:       project.Variant,
 		Name:          project.Name,
 		TrackerURL:    project.TrackerURL,
 		IsActive:      project.IsActive,
@@ -125,6 +127,8 @@ func LocalToProject(local *LocalProject) *models.Project {
 	project := &models.Project{
 		UUID:          local.UUID,
 		OwnerUsername: local.OwnerUsername,
+		Code:          local.Code,
+		Variant:       local.Variant,
 		Name:          local.Name,
 		TrackerURL:    local.TrackerURL,
 		IsActive:      local.IsActive,

internal/localdb/localdb.go

@@ -42,6 +42,49 @@ type LocalDB struct {
 	path string
 }
 
+// ResetData clears local data tables while keeping connection settings.
+// It does not drop schema or connection_settings.
+func ResetData(dbPath string) error {
+	if strings.TrimSpace(dbPath) == "" {
+		return nil
+	}
+	if _, err := os.Stat(dbPath); err != nil {
+		if errors.Is(err, os.ErrNotExist) {
+			return nil
+		}
+		return fmt.Errorf("stat local db: %w", err)
+	}
+
+	db, err := gorm.Open(sqlite.Open(dbPath), &gorm.Config{
+		Logger: logger.Default.LogMode(logger.Silent),
+	})
+	if err != nil {
+		return fmt.Errorf("opening sqlite database: %w", err)
+	}
+
+	// Order does not matter because we use DELETEs without FK constraints in SQLite.
+	tables := []string{
+		"local_projects",
+		"local_configurations",
+		"local_configuration_versions",
+		"local_pricelists",
+		"local_pricelist_items",
+		"local_components",
+		"local_remote_migrations_applied",
+		"local_sync_guard_state",
+		"pending_changes",
+		"app_settings",
+	}
+	for _, table := range tables {
+		if err := db.Exec("DELETE FROM " + table).Error; err != nil {
+			return fmt.Errorf("clear %s: %w", table, err)
+		}
+	}
+
+	slog.Info("local database data reset", "path", dbPath)
+	return nil
+}
+
 // New creates a new LocalDB instance
 func New(dbPath string) (*LocalDB, error) {
 	// Ensure directory exists
@@ -65,10 +108,31 @@ func New(dbPath string) (*LocalDB, error) {
 		return nil, fmt.Errorf("opening sqlite database: %w", err)
 	}
 
+	if err := ensureLocalProjectsTable(db); err != nil {
+		return nil, fmt.Errorf("ensure local_projects table: %w", err)
+	}
+
+	// Preflight: ensure local_projects has non-null UUIDs before AutoMigrate rebuilds tables.
+	if db.Migrator().HasTable(&LocalProject{}) {
+		if !db.Migrator().HasColumn(&LocalProject{}, "uuid") {
+			if err := db.Exec(`ALTER TABLE local_projects ADD COLUMN uuid TEXT`).Error; err != nil {
+				return nil, fmt.Errorf("adding local_projects.uuid: %w", err)
+			}
+		}
+		var ids []uint
+		if err := db.Raw(`SELECT id FROM local_projects WHERE uuid IS NULL OR uuid = ''`).Scan(&ids).Error; err != nil {
+			return nil, fmt.Errorf("finding local_projects without uuid: %w", err)
+		}
+		for _, id := range ids {
+			if err := db.Exec(`UPDATE local_projects SET uuid = ? WHERE id = ?`, uuidpkg.New().String(), id).Error; err != nil {
+				return nil, fmt.Errorf("backfilling local_projects.uuid: %w", err)
+			}
+		}
+	}
+
 	// Auto-migrate all local tables
 	if err := db.AutoMigrate(
 		&ConnectionSettings{},
-		&LocalProject{},
 		&LocalConfiguration{},
 		&LocalConfigurationVersion{},
 		&LocalPricelist{},
@@ -93,6 +157,38 @@ func New(dbPath string) (*LocalDB, error) {
 	}, nil
 }
 
+func ensureLocalProjectsTable(db *gorm.DB) error {
+	if db.Migrator().HasTable(&LocalProject{}) {
+		return nil
+	}
+
+	if err := db.Exec(`
+CREATE TABLE local_projects (
+	id INTEGER PRIMARY KEY AUTOINCREMENT,
+	uuid TEXT NOT NULL UNIQUE,
+	server_id INTEGER NULL,
+	owner_username TEXT NOT NULL,
+	code TEXT NOT NULL,
+	variant TEXT NOT NULL DEFAULT '',
+	name TEXT NULL,
+	tracker_url TEXT NULL,
+	is_active INTEGER NOT NULL DEFAULT 1,
+	is_system INTEGER NOT NULL DEFAULT 0,
+	created_at DATETIME,
+	updated_at DATETIME,
+	synced_at DATETIME NULL,
+	sync_status TEXT DEFAULT 'local'
+)`).Error; err != nil {
+		return err
+	}
+
+	_ = db.Exec(`CREATE INDEX IF NOT EXISTS idx_local_projects_owner_username ON local_projects(owner_username)`).Error
+	_ = db.Exec(`CREATE INDEX IF NOT EXISTS idx_local_projects_is_active ON local_projects(is_active)`).Error
+	_ = db.Exec(`CREATE INDEX IF NOT EXISTS idx_local_projects_is_system ON local_projects(is_system)`).Error
+	_ = db.Exec(`CREATE UNIQUE INDEX IF NOT EXISTS idx_local_projects_code_variant ON local_projects(code, variant)`).Error
+	return nil
+}
+
 // HasSettings returns true if connection settings exist
 func (l *LocalDB) HasSettings() bool {
 	var count int64
@@ -267,7 +363,8 @@ func (l *LocalDB) EnsureDefaultProject(ownerUsername string) (*LocalProject, err
 	project = &LocalProject{
 		UUID:          uuidpkg.NewString(),
 		OwnerUsername: "",
-		Name:          "Без проекта",
+		Code:          "Без проекта",
+		Name:          ptrString("Без проекта"),
 		IsActive:      true,
 		IsSystem:      true,
 		CreatedAt:     now,
@@ -295,7 +392,8 @@ func (l *LocalDB) ConsolidateSystemProjects() (int64, error) {
 			canonical = LocalProject{
 				UUID:          uuidpkg.NewString(),
 				OwnerUsername: "",
-				Name:          "Без проекта",
+				Code:          "Без проекта",
+				Name:          ptrString("Без проекта"),
 				IsActive:      true,
 				IsSystem:      true,
 				CreatedAt:     now,
@@ -376,6 +474,10 @@ WHERE (
 	return tx.RowsAffected, tx.Error
 }
 
+func ptrString(value string) *string {
+	return &value
+}
+
 // BackfillConfigurationProjects ensures every configuration has project_uuid set.
 // If missing, it assigns system project "Без проекта" for configuration owner.
 func (l *LocalDB) BackfillConfigurationProjects(defaultOwner string) error {

internal/localdb/migration_projects_test.go

@@ -51,8 +51,8 @@ func TestRunLocalMigrationsBackfillsDefaultProject(t *testing.T) {
 	if err != nil {
 		t.Fatalf("get system project: %v", err)
 	}
-	if project.Name != "Без проекта" {
+	if project.Name == nil || *project.Name != "Без проекта" {
-		t.Fatalf("expected system project name, got %q", project.Name)
+		t.Fatalf("expected system project name, got %v", project.Name)
 	}
 	if !project.IsSystem {
 		t.Fatalf("expected system project flag")

internal/localdb/migrations.go

@@ -88,6 +88,21 @@ var localMigrations = []localMigration{
 		name: "Add support_code to local_configurations",
 		run:  addLocalConfigurationSupportCode,
 	},
+	{
+		id:   "2026_02_13_local_project_code",
+		name: "Add project code to local_projects and backfill",
+		run:  addLocalProjectCode,
+	},
+	{
+		id:   "2026_02_13_local_project_variant",
+		name: "Add project variant to local_projects and backfill",
+		run:  addLocalProjectVariant,
+	},
+	{
+		id:   "2026_02_13_local_project_name_nullable",
+		name: "Allow NULL project names in local_projects",
+		run:  allowLocalProjectNameNull,
+	},
 }
 
 func runLocalMigrations(db *gorm.DB) error {
@@ -224,7 +239,8 @@ func ensureDefaultProjectTx(tx *gorm.DB, ownerUsername string) (*LocalProject, e
 	project = LocalProject{
 		UUID:          uuid.NewString(),
 		OwnerUsername: ownerUsername,
-		Name:          "Без проекта",
+		Code:          "Без проекта",
+		Name:          ptrString("Без проекта"),
 		IsActive:      true,
 		IsSystem:      true,
 		CreatedAt:     now,
@@ -238,6 +254,139 @@ func ensureDefaultProjectTx(tx *gorm.DB, ownerUsername string) (*LocalProject, e
 	return &project, nil
 }
 
+func addLocalProjectCode(tx *gorm.DB) error {
+	if err := tx.Exec(`ALTER TABLE local_projects ADD COLUMN code TEXT`).Error; err != nil {
+		if !strings.Contains(strings.ToLower(err.Error()), "duplicate") &&
+			!strings.Contains(strings.ToLower(err.Error()), "exists") {
+			return err
+		}
+	}
+
+	// Drop unique index if it already exists to allow de-duplication updates.
+	if err := tx.Exec(`DROP INDEX IF EXISTS idx_local_projects_code`).Error; err != nil {
+		return err
+	}
+
+	// Copy code from current project name.
+	if err := tx.Exec(`
+UPDATE local_projects
+SET code = TRIM(COALESCE(name, ''))`).Error; err != nil {
+		return err
+	}
+
+	// Ensure any remaining blanks have a unique fallback.
+	if err := tx.Exec(`
+UPDATE local_projects
+SET code = 'P-' || uuid
+WHERE code IS NULL OR TRIM(code) = ''`).Error; err != nil {
+		return err
+	}
+
+	// De-duplicate codes: OPS-1948-2, OPS-1948-3...
+	if err := tx.Exec(`
+WITH ranked AS (
+	SELECT id, code,
+	       ROW_NUMBER() OVER (PARTITION BY code ORDER BY id) AS rn
+	FROM local_projects
+)
+UPDATE local_projects
+SET code = code || '-' || (SELECT rn FROM ranked WHERE ranked.id = local_projects.id)
+WHERE id IN (SELECT id FROM ranked WHERE rn > 1)`).Error; err != nil {
+		return err
+	}
+
+	// Create unique index for project codes (ignore if exists).
+	if err := tx.Exec(`CREATE UNIQUE INDEX IF NOT EXISTS idx_local_projects_code ON local_projects(code)`).Error; err != nil {
+		return err
+	}
+
+	return nil
+}
+
+func addLocalProjectVariant(tx *gorm.DB) error {
+	if err := tx.Exec(`ALTER TABLE local_projects ADD COLUMN variant TEXT NOT NULL DEFAULT ''`).Error; err != nil {
+		if !strings.Contains(strings.ToLower(err.Error()), "duplicate") &&
+			!strings.Contains(strings.ToLower(err.Error()), "exists") {
+			return err
+		}
+	}
+
+	// Drop legacy code index if present.
+	if err := tx.Exec(`DROP INDEX IF EXISTS idx_local_projects_code`).Error; err != nil {
+		return err
+	}
+
+	// Reset code from name and clear variant.
+	if err := tx.Exec(`
+UPDATE local_projects
+SET code = TRIM(COALESCE(name, '')),
+    variant = ''`).Error; err != nil {
+		return err
+	}
+
+	// De-duplicate by assigning variant numbers: 2,3...
+	if err := tx.Exec(`
+WITH ranked AS (
+	SELECT id, code,
+	       ROW_NUMBER() OVER (PARTITION BY code ORDER BY id) AS rn
+	FROM local_projects
+)
+UPDATE local_projects
+SET variant = CASE
+	WHEN (SELECT rn FROM ranked WHERE ranked.id = local_projects.id) = 1 THEN ''
+	ELSE '-' || CAST((SELECT rn FROM ranked WHERE ranked.id = local_projects.id) AS TEXT)
+END`).Error; err != nil {
+		return err
+	}
+
+	if err := tx.Exec(`CREATE UNIQUE INDEX IF NOT EXISTS idx_local_projects_code_variant ON local_projects(code, variant)`).Error; err != nil {
+		return err
+	}
+
+	return nil
+}
+
+func allowLocalProjectNameNull(tx *gorm.DB) error {
+	if err := tx.Exec(`ALTER TABLE local_projects RENAME TO local_projects_old`).Error; err != nil {
+		return err
+	}
+
+	if err := tx.Exec(`
+CREATE TABLE local_projects (
+	id INTEGER PRIMARY KEY AUTOINCREMENT,
+	uuid TEXT NOT NULL UNIQUE,
+	server_id INTEGER NULL,
+	owner_username TEXT NOT NULL,
+	code TEXT NOT NULL,
+	variant TEXT NOT NULL DEFAULT '',
+	name TEXT NULL,
+	tracker_url TEXT NULL,
+	is_active INTEGER NOT NULL DEFAULT 1,
+	is_system INTEGER NOT NULL DEFAULT 0,
+	created_at DATETIME,
+	updated_at DATETIME,
+	synced_at DATETIME NULL,
+	sync_status TEXT DEFAULT 'local'
+)`).Error; err != nil {
+		return err
+	}
+
+	_ = tx.Exec(`CREATE INDEX IF NOT EXISTS idx_local_projects_owner_username ON local_projects(owner_username)`).Error
+	_ = tx.Exec(`CREATE INDEX IF NOT EXISTS idx_local_projects_is_active ON local_projects(is_active)`).Error
+	_ = tx.Exec(`CREATE INDEX IF NOT EXISTS idx_local_projects_is_system ON local_projects(is_system)`).Error
+	_ = tx.Exec(`CREATE UNIQUE INDEX IF NOT EXISTS idx_local_projects_code_variant ON local_projects(code, variant)`).Error
+
+	if err := tx.Exec(`
+INSERT INTO local_projects (id, uuid, server_id, owner_username, code, variant, name, tracker_url, is_active, is_system, created_at, updated_at, synced_at, sync_status)
+SELECT id, uuid, server_id, owner_username, code, variant, name, tracker_url, is_active, is_system, created_at, updated_at, synced_at, sync_status
+FROM local_projects_old`).Error; err != nil {
+		return err
+	}
+
+	_ = tx.Exec(`DROP TABLE local_projects_old`).Error
+	return nil
+}
+
 func backfillConfigurationPricelists(tx *gorm.DB) error {
 	var latest LocalPricelist
 	if err := tx.Where("source = ?", "estimate").Order("created_at DESC").First(&latest).Error; err != nil {
@@ -279,6 +428,7 @@ func chooseNonZeroTime(candidate time.Time, fallback time.Time) time.Time {
 	return candidate
 }
 
+
 func fixLocalPricelistIndexes(tx *gorm.DB) error {
 	type indexRow struct {
 		Name   string `gorm:"column:name"`

internal/localdb/models.go

@@ -123,7 +123,9 @@ type LocalProject struct {
 	UUID          string     `gorm:"uniqueIndex;not null" json:"uuid"`
 	ServerID      *uint      `json:"server_id,omitempty"`
 	OwnerUsername string     `gorm:"not null;index" json:"owner_username"`
-	Name          string     `gorm:"not null" json:"name"`
+	Code          string     `gorm:"not null;index:idx_local_projects_code_variant,priority:1" json:"code"`
+	Variant       string     `gorm:"default:'';index:idx_local_projects_code_variant,priority:2" json:"variant"`
+	Name          *string    `json:"name,omitempty"`
 	TrackerURL    string     `json:"tracker_url"`
 	IsActive      bool       `gorm:"default:true;index" json:"is_active"`
 	IsSystem      bool       `gorm:"default:false;index" json:"is_system"`

internal/models/project.go

@@ -6,7 +6,9 @@ type Project struct {
 	ID            uint      `gorm:"primaryKey;autoIncrement" json:"id"`
 	UUID          string    `gorm:"size:36;uniqueIndex;not null" json:"uuid"`
 	OwnerUsername string    `gorm:"size:100;not null;index" json:"owner_username"`
-	Name          string    `gorm:"size:200;not null" json:"name"`
+	Code          string    `gorm:"size:100;not null;index:idx_qt_projects_code_variant,priority:1" json:"code"`
+	Variant       string    `gorm:"size:100;not null;default:'';index:idx_qt_projects_code_variant,priority:2" json:"variant"`
+	Name          *string   `gorm:"size:200" json:"name,omitempty"`
 	TrackerURL    string    `gorm:"size:500" json:"tracker_url"`
 	IsActive      bool      `gorm:"default:true;index" json:"is_active"`
 	IsSystem      bool      `gorm:"default:false;index" json:"is_system"`

internal/repository/project.go

@@ -27,6 +27,8 @@ func (r *ProjectRepository) UpsertByUUID(project *models.Project) error {
 		Columns: []clause.Column{{Name: "uuid"}},
 		DoUpdates: clause.AssignmentColumns([]string{
 			"owner_username",
+			"code",
+			"variant",
 			"name",
 			"tracker_url",
 			"is_active",

internal/services/local_configuration_versioning_test.go

@@ -191,7 +191,8 @@ func TestUpdateNoAuthKeepsProjectWhenProjectUUIDOmitted(t *testing.T) {
 	project := &localdb.LocalProject{
 		UUID:          "project-keep",
 		OwnerUsername: "tester",
-		Name:          "Keep Project",
+		Code:          "TEST-KEEP",
+		Name:          ptrString("Keep Project"),
 		IsActive:      true,
 		CreatedAt:     time.Now(),
 		UpdatedAt:     time.Now(),
@@ -227,6 +228,10 @@ func TestUpdateNoAuthKeepsProjectWhenProjectUUIDOmitted(t *testing.T) {
 	}
 }
 
+func ptrString(value string) *string {
+	return &value
+}
+
 func newLocalConfigServiceForTest(t *testing.T) (*LocalConfigurationService, *localdb.LocalDB) {
 	t.Helper()
 

internal/services/project.go

@@ -18,7 +18,7 @@ import (
 var (
 	ErrProjectNotFound   = errors.New("project not found")
 	ErrProjectForbidden  = errors.New("access to project forbidden")
-	ErrProjectNameExists = errors.New("project name already exists")
+	ErrProjectCodeExists = errors.New("project code and variant already exist")
 )
 
 type ProjectService struct {
@@ -30,12 +30,16 @@ func NewProjectService(localDB *localdb.LocalDB) *ProjectService {
 }
 
 type CreateProjectRequest struct {
-	Name       string `json:"name"`
+	Code       string `json:"code"`
+	Variant    string `json:"variant,omitempty"`
+	Name       *string `json:"name,omitempty"`
 	TrackerURL string `json:"tracker_url"`
 }
 
 type UpdateProjectRequest struct {
-	Name       string  `json:"name"`
+	Code       *string `json:"code,omitempty"`
+	Variant    *string `json:"variant,omitempty"`
+	Name       *string `json:"name,omitempty"`
 	TrackerURL *string `json:"tracker_url,omitempty"`
 }
 
@@ -46,11 +50,19 @@ type ProjectConfigurationsResult struct {
 }
 
 func (s *ProjectService) Create(ownerUsername string, req *CreateProjectRequest) (*models.Project, error) {
-	name := strings.TrimSpace(req.Name)
+	var namePtr *string
-	if name == "" {
+	if req.Name != nil {
-		return nil, fmt.Errorf("project name is required")
+		name := strings.TrimSpace(*req.Name)
+		if name != "" {
+			namePtr = &name
 		}
-	if err := s.ensureUniqueProjectName("", name); err != nil {
+	}
+	code := strings.TrimSpace(req.Code)
+	if code == "" {
+		return nil, fmt.Errorf("project code is required")
+	}
+	variant := strings.TrimSpace(req.Variant)
+	if err := s.ensureUniqueProjectCodeVariant("", code, variant); err != nil {
 		return nil, err
 	}
 
@@ -58,8 +70,10 @@ func (s *ProjectService) Create(ownerUsername string, req *CreateProjectRequest)
 	localProject := &localdb.LocalProject{
 		UUID:          uuid.NewString(),
 		OwnerUsername: ownerUsername,
-		Name:          name,
+		Code:          code,
-		TrackerURL:    normalizeProjectTrackerURL(name, req.TrackerURL),
+		Variant:       variant,
+		Name:          namePtr,
+		TrackerURL:    normalizeProjectTrackerURL(code, req.TrackerURL),
 		IsActive:      true,
 		IsSystem:      false,
 		CreatedAt:     now,
@@ -81,19 +95,32 @@ func (s *ProjectService) Update(projectUUID, ownerUsername string, req *UpdatePr
 		return nil, ErrProjectNotFound
 	}
 
-	name := strings.TrimSpace(req.Name)
+	if req.Code != nil {
-	if name == "" {
+		code := strings.TrimSpace(*req.Code)
-		return nil, fmt.Errorf("project name is required")
+		if code == "" {
+			return nil, fmt.Errorf("project code is required")
 		}
-	if err := s.ensureUniqueProjectName(projectUUID, name); err != nil {
+		localProject.Code = code
+	}
+	if req.Variant != nil {
+		localProject.Variant = strings.TrimSpace(*req.Variant)
+	}
+	if err := s.ensureUniqueProjectCodeVariant(projectUUID, localProject.Code, localProject.Variant); err != nil {
 		return nil, err
 	}
 
-	localProject.Name = name
+	if req.Name != nil {
+		name := strings.TrimSpace(*req.Name)
+		if name == "" {
+			localProject.Name = nil
+		} else {
+			localProject.Name = &name
+		}
+	}
 	if req.TrackerURL != nil {
-		localProject.TrackerURL = normalizeProjectTrackerURL(name, *req.TrackerURL)
+		localProject.TrackerURL = normalizeProjectTrackerURL(localProject.Code, *req.TrackerURL)
 	} else if strings.TrimSpace(localProject.TrackerURL) == "" {
-		localProject.TrackerURL = normalizeProjectTrackerURL(name, "")
+		localProject.TrackerURL = normalizeProjectTrackerURL(localProject.Code, "")
 	}
 	localProject.UpdatedAt = time.Now()
 	localProject.SyncStatus = "pending"
@@ -106,10 +133,11 @@ func (s *ProjectService) Update(projectUUID, ownerUsername string, req *UpdatePr
 	return localdb.LocalToProject(localProject), nil
 }
 
-func (s *ProjectService) ensureUniqueProjectName(excludeUUID, name string) error {
+func (s *ProjectService) ensureUniqueProjectCodeVariant(excludeUUID, code, variant string) error {
-	normalized := normalizeProjectName(name)
+	normalizedCode := normalizeProjectCode(code)
-	if normalized == "" {
+	normalizedVariant := normalizeProjectVariant(variant)
-		return fmt.Errorf("project name is required")
+	if normalizedCode == "" {
+		return fmt.Errorf("project code is required")
 	}
 
 	projects, err := s.localDB.GetAllProjects(true)
@@ -121,15 +149,20 @@ func (s *ProjectService) ensureUniqueProjectName(excludeUUID, name string) error
 		if excludeUUID != "" && project.UUID == excludeUUID {
 			continue
 		}
-		if normalizeProjectName(project.Name) == normalized {
+		if normalizeProjectCode(project.Code) == normalizedCode &&
-			return ErrProjectNameExists
+			normalizeProjectVariant(project.Variant) == normalizedVariant {
+			return ErrProjectCodeExists
 		}
 	}
 	return nil
 }
 
-func normalizeProjectName(name string) string {
+func normalizeProjectCode(code string) string {
-	return strings.ToLower(strings.TrimSpace(name))
+	return strings.ToLower(strings.TrimSpace(code))
+}
+
+func normalizeProjectVariant(variant string) string {
+	return strings.ToLower(strings.TrimSpace(variant))
 }
 
 func (s *ProjectService) Archive(projectUUID, ownerUsername string) error {

internal/services/sync/service.go

@@ -200,6 +200,7 @@ func (s *Service) ImportProjectsToLocal() (*ProjectImportResult, error) {
 				}
 
 				existing.OwnerUsername = project.OwnerUsername
+				existing.Code = project.Code
 				existing.Name = project.Name
 				existing.TrackerURL = project.TrackerURL
 				existing.IsActive = project.IsActive
@@ -848,6 +849,12 @@ func (s *Service) pushProjectChange(change *localdb.PendingChange) error {
 	projectRepo := repository.NewProjectRepository(mariaDB)
 	project := payload.Snapshot
 	project.UUID = payload.ProjectUUID
+	if strings.TrimSpace(project.Code) == "" {
+		project.Code = strings.TrimSpace(derefString(project.Name))
+		if project.Code == "" {
+			project.Code = project.UUID
+		}
+	}
 
 	if err := projectRepo.UpsertByUUID(&project); err != nil {
 		return fmt.Errorf("upsert project on server: %w", err)
@@ -868,6 +875,17 @@ func (s *Service) pushProjectChange(change *localdb.PendingChange) error {
 	return nil
 }
 
+func derefString(value *string) string {
+	if value == nil {
+		return ""
+	}
+	return *value
+}
+
+func ptrString(value string) *string {
+	return &value
+}
+
 func decodeProjectChangePayload(change *localdb.PendingChange) (ProjectChangePayload, error) {
 	var payload ProjectChangePayload
 	if err := json.Unmarshal([]byte(change.Payload), &payload); err == nil && payload.ProjectUUID != "" {
@@ -1138,7 +1156,8 @@ func (s *Service) ensureConfigurationProject(mariaDB *gorm.DB, cfg *models.Confi
 		systemProject = &models.Project{
 			UUID:          uuid.NewString(),
 			OwnerUsername: "",
-			Name:          "Без проекта",
+			Code:          "Без проекта",
+			Name:          ptrString("Без проекта"),
 			IsActive:      true,
 			IsSystem:      true,
 		}
@@ -1302,6 +1321,21 @@ func (s *Service) loadCurrentConfigurationState(configurationUUID string) (model
 		}
 	}
 
+	if currentVersionNo == 0 {
+		if err := s.repairMissingConfigurationVersion(localCfg); err != nil {
+			return models.Configuration{}, "", 0, fmt.Errorf("repair missing configuration version: %w", err)
+		}
+		var latest localdb.LocalConfigurationVersion
+		err = s.localDB.DB().
+			Where("configuration_uuid = ?", configurationUUID).
+			Order("version_no DESC").
+			First(&latest).Error
+		if err == nil {
+			currentVersionNo = latest.VersionNo
+			currentVersionID = latest.ID
+		}
+	}
+
 	if currentVersionNo == 0 {
 		return models.Configuration{}, "", 0, fmt.Errorf("no local configuration version found for %s", configurationUUID)
 	}
@@ -1309,6 +1343,64 @@ func (s *Service) loadCurrentConfigurationState(configurationUUID string) (model
 	return cfg, currentVersionID, currentVersionNo, nil
 }
 
+func (s *Service) repairMissingConfigurationVersion(localCfg *localdb.LocalConfiguration) error {
+	if localCfg == nil {
+		return fmt.Errorf("local configuration is nil")
+	}
+
+	return s.localDB.DB().Transaction(func(tx *gorm.DB) error {
+		var cfg localdb.LocalConfiguration
+		if err := tx.Where("uuid = ?", localCfg.UUID).First(&cfg).Error; err != nil {
+			return fmt.Errorf("load local configuration: %w", err)
+		}
+
+		// If versions exist, just make sure current_version_id is set.
+		var latest localdb.LocalConfigurationVersion
+		if err := tx.Where("configuration_uuid = ?", cfg.UUID).
+			Order("version_no DESC").
+			First(&latest).Error; err == nil {
+			if cfg.CurrentVersionID == nil || *cfg.CurrentVersionID == "" {
+				if err := tx.Model(&localdb.LocalConfiguration{}).
+					Where("uuid = ?", cfg.UUID).
+					Update("current_version_id", latest.ID).Error; err != nil {
+					return fmt.Errorf("set current version id: %w", err)
+				}
+			}
+			return nil
+		} else if !errors.Is(err, gorm.ErrRecordNotFound) {
+			return fmt.Errorf("load latest version: %w", err)
+		}
+
+		snapshot, err := localdb.BuildConfigurationSnapshot(&cfg)
+		if err != nil {
+			return fmt.Errorf("build configuration snapshot: %w", err)
+		}
+
+		note := "Auto-repaired missing local version"
+		version := localdb.LocalConfigurationVersion{
+			ID:                uuid.NewString(),
+			ConfigurationUUID: cfg.UUID,
+			VersionNo:         1,
+			Data:              snapshot,
+			ChangeNote:        &note,
+			AppVersion:        appmeta.Version(),
+			CreatedAt:         time.Now(),
+		}
+
+		if err := tx.Create(&version).Error; err != nil {
+			return fmt.Errorf("create initial version: %w", err)
+		}
+		if err := tx.Model(&localdb.LocalConfiguration{}).
+			Where("uuid = ?", cfg.UUID).
+			Update("current_version_id", version.ID).Error; err != nil {
+			return fmt.Errorf("set current version id: %w", err)
+		}
+
+		slog.Warn("repaired missing local configuration version", "uuid", cfg.UUID, "version_no", version.VersionNo)
+		return nil
+	})
+}
+
 // NOTE: prepared for future conflict resolution:
 // when server starts storing version metadata, we can compare payload.CurrentVersionNo
 // against remote version and branch into custom strategies. For now use last-write-wins.

internal/services/sync/service_projects_push_test.go

@@ -23,7 +23,7 @@ func TestPushPendingChangesProjectsBeforeConfigurations(t *testing.T) {
 	projectService := services.NewProjectService(local)
 	configService := services.NewLocalConfigurationService(local, localSync, &services.QuoteService{}, func() bool { return false })
 
-	project, err := projectService.Create("tester", &services.CreateProjectRequest{Name: "Project A"})
+	project, err := projectService.Create("tester", &services.CreateProjectRequest{Name: ptrString("Project A"), Code: "PRJ-A"})
 	if err != nil {
 		t.Fatalf("create project: %v", err)
 	}
@@ -74,11 +74,11 @@ func TestPushPendingChangesProjectCreateThenUpdateBeforeFirstPush(t *testing.T)
 	configService := services.NewLocalConfigurationService(local, localSync, &services.QuoteService{}, func() bool { return false })
 	pushService := syncsvc.NewServiceWithDB(serverDB, local)
 
-	project, err := projectService.Create("tester", &services.CreateProjectRequest{Name: "Project v1"})
+	project, err := projectService.Create("tester", &services.CreateProjectRequest{Name: ptrString("Project v1"), Code: "PRJ-V1"})
 	if err != nil {
 		t.Fatalf("create project: %v", err)
 	}
-	if _, err := projectService.Update(project.UUID, "tester", &services.UpdateProjectRequest{Name: "Project v2"}); err != nil {
+	if _, err := projectService.Update(project.UUID, "tester", &services.UpdateProjectRequest{Name: ptrString("Project v2")}); err != nil {
 		t.Fatalf("update project: %v", err)
 	}
 
@@ -100,8 +100,8 @@ func TestPushPendingChangesProjectCreateThenUpdateBeforeFirstPush(t *testing.T)
 	if err := serverDB.Where("uuid = ?", project.UUID).First(&serverProject).Error; err != nil {
 		t.Fatalf("project not pushed to server: %v", err)
 	}
-	if serverProject.Name != "Project v2" {
+	if serverProject.Name == nil || *serverProject.Name != "Project v2" {
-		t.Fatalf("expected latest project name, got %q", serverProject.Name)
+		t.Fatalf("expected latest project name, got %v", serverProject.Name)
 	}
 
 	var serverCfg models.Configuration
@@ -324,6 +324,8 @@ CREATE TABLE qt_projects (
 	id INTEGER PRIMARY KEY AUTOINCREMENT,
 	uuid TEXT NOT NULL UNIQUE,
 	owner_username TEXT NOT NULL,
+	code TEXT NOT NULL,
+	variant TEXT NOT NULL DEFAULT '',
 	name TEXT NOT NULL,
 	tracker_url TEXT NULL,
 	is_active INTEGER NOT NULL DEFAULT 1,
@@ -333,6 +335,9 @@ CREATE TABLE qt_projects (
 );`).Error; err != nil {
 		t.Fatalf("create qt_projects: %v", err)
 	}
+	if err := db.Exec(`CREATE UNIQUE INDEX idx_qt_projects_code_variant ON qt_projects(code, variant);`).Error; err != nil {
+		t.Fatalf("create qt_projects index: %v", err)
+	}
 	if err := db.Exec(`
 CREATE TABLE qt_configurations (
 	id INTEGER PRIMARY KEY AUTOINCREMENT,
@@ -364,6 +369,10 @@ CREATE TABLE qt_configurations (
 	return db
 }
 
+func ptrString(value string) *string {
+	return &value
+}
+
 func getCurrentVersionInfo(t *testing.T, local *localdb.LocalDB, configurationUUID string, currentVersionID *string) (int, string) {
 	t.Helper()
 	if currentVersionID == nil || *currentVersionID == "" {

migrations/025_add_project_code.sql

@@ -0,0 +1,38 @@
+-- Add project code and enforce uniqueness
+
+ALTER TABLE qt_projects
+    ADD COLUMN code VARCHAR(100) NULL AFTER owner_username;
+
+-- Copy code from current project name (truncate to fit)
+UPDATE qt_projects
+SET code = LEFT(TRIM(COALESCE(name, '')), 100);
+
+-- Fallback for any remaining blanks
+UPDATE qt_projects
+SET code = uuid
+WHERE code IS NULL OR TRIM(code) = '';
+
+-- Drop unique index if it already exists to allow de-duplication updates
+DROP INDEX IF EXISTS idx_qt_projects_code ON qt_projects;
+
+-- De-duplicate codes: OPS-1948-2, OPS-1948-3... (MariaDB without CTE)
+UPDATE qt_projects p
+JOIN (
+    SELECT p1.id,
+           p1.code AS base_code,
+           (
+               SELECT COUNT(*)
+               FROM qt_projects p2
+               WHERE p2.code = p1.code AND p2.id <= p1.id
+           ) AS rn
+    FROM qt_projects p1
+) r ON r.id = p.id
+SET p.code = CASE
+    WHEN r.rn = 1 THEN r.base_code
+    ELSE CONCAT(LEFT(r.base_code, 90), '-', r.rn)
+END;
+
+ALTER TABLE qt_projects
+    MODIFY COLUMN code VARCHAR(100) NOT NULL;
+
+CREATE UNIQUE INDEX idx_qt_projects_code ON qt_projects(code);

migrations/026_add_project_variant.sql

@@ -0,0 +1,28 @@
+-- Add project variant and reset codes from project names
+
+ALTER TABLE qt_projects
+    ADD COLUMN variant VARCHAR(100) NOT NULL DEFAULT '' AFTER code;
+
+-- Drop legacy unique index on code to allow duplicate codes
+DROP INDEX IF EXISTS idx_qt_projects_code ON qt_projects;
+DROP INDEX IF EXISTS idx_qt_projects_code_variant ON qt_projects;
+
+-- Reset code from name and clear variant
+UPDATE qt_projects
+SET code = LEFT(TRIM(COALESCE(name, '')), 100),
+    variant = '';
+
+-- De-duplicate by assigning variant numbers: -2, -3...
+UPDATE qt_projects p
+JOIN (
+    SELECT p1.id,
+           p1.code,
+           (SELECT COUNT(*)
+            FROM qt_projects p2
+            WHERE p2.code = p1.code AND p2.id <= p1.id) AS rn
+    FROM qt_projects p1
+) r ON r.id = p.id
+SET p.code = r.code,
+    p.variant = CASE WHEN r.rn = 1 THEN '' ELSE CONCAT('-', r.rn) END;
+
+CREATE UNIQUE INDEX idx_qt_projects_code_variant ON qt_projects(code, variant);

migrations/027_project_name_nullable.sql

@@ -0,0 +1,4 @@
+-- Allow NULL project names
+
+ALTER TABLE qt_projects
+    MODIFY COLUMN name VARCHAR(200) NULL;

web/templates/configs.html

@@ -62,7 +62,7 @@
                 <label class="block text-sm font-medium text-gray-700 mb-1">Код проекта</label>
                 <input id="create-project-input"
                        list="create-project-options"
-                       placeholder="Начните вводить название проекта"
+                       placeholder="Например: OPS-123 (Lenovo)"
                        class="w-full px-3 py-2 border rounded focus:ring-2 focus:ring-blue-500 focus:border-blue-500">
                 <datalist id="create-project-options"></datalist>
                 <div class="mt-2 flex justify-between items-center gap-3">
@@ -147,7 +147,7 @@
                 <label class="block text-sm font-medium text-gray-700 mb-1">Проект</label>
                 <input id="move-project-input"
                        list="move-project-options"
-                       placeholder="Начните вводить название проекта"
+                       placeholder="Например: OPS-123 (Lenovo)"
                        class="w-full px-3 py-2 border rounded focus:ring-2 focus:ring-blue-500 focus:border-blue-500">
                 <datalist id="move-project-options"></datalist>
                 <div class="mt-2 flex justify-between items-center gap-3">
@@ -174,7 +174,17 @@
 <div id="create-project-on-move-modal" class="fixed inset-0 bg-black bg-opacity-50 hidden items-center justify-center z-50">
     <div class="bg-white rounded-lg shadow-xl w-full max-w-md mx-4 p-6">
         <h2 class="text-xl font-semibold mb-3">Проект не найден</h2>
-        <p class="text-sm text-gray-600 mb-4">Проект "<span id="create-project-on-move-name" class="font-medium text-gray-900"></span>" не найден. <span id="create-project-on-move-description">Создать и привязать квоту?</span></p>
+        <p class="text-sm text-gray-600 mb-4">Проект с кодом "<span id="create-project-on-move-code" class="font-medium text-gray-900"></span>" не найден. <span id="create-project-on-move-description">Создать и привязать квоту?</span></p>
+        <div class="mb-4">
+            <label for="create-project-on-move-name" class="block text-sm font-medium text-gray-700 mb-1">Название проекта</label>
+            <input id="create-project-on-move-name" type="text" placeholder="Например: Инфраструктура для OPS-123"
+                   class="w-full px-3 py-2 border rounded focus:ring-2 focus:ring-blue-500 focus:border-blue-500">
+        </div>
+        <div class="mb-4">
+            <label for="create-project-on-move-variant" class="block text-sm font-medium text-gray-700 mb-1">Вариант (необязательно)</label>
+            <input id="create-project-on-move-variant" type="text" placeholder="Например: Lenovo"
+                   class="w-full px-3 py-2 border rounded focus:ring-2 focus:ring-blue-500 focus:border-blue-500">
+        </div>
         <div class="flex justify-end space-x-3">
             <button onclick="closeCreateProjectOnMoveModal()" class="px-4 py-2 text-gray-600 hover:text-gray-800">Отмена</button>
             <button id="create-project-on-move-confirm-btn" onclick="confirmCreateProjectOnMove()" class="px-4 py-2 bg-blue-600 text-white rounded hover:bg-blue-700">Создать и привязать</button>
@@ -191,10 +201,12 @@ let configStatusMode = 'active';
 let configsSearch = '';
 let projectsCache = [];
 let projectNameByUUID = {};
+let projectCodeByUUID = {};
+let projectVariantByUUID = {};
 let pendingMoveConfigUUID = '';
-let pendingMoveProjectName = '';
+let pendingMoveProjectCode = '';
 let pendingCreateConfigName = '';
-let pendingCreateProjectName = '';
+let pendingCreateProjectCode = '';
 
 function renderConfigs(configs) {
     const emptyText = configStatusMode === 'archived'
@@ -307,6 +319,30 @@ function renderConfigs(configs) {
     document.getElementById('configs-list').innerHTML = html;
 }
 
+function projectDisplayKey(project) {
+    const code = (project.code || '').trim();
+    const variant = (project.variant || '').trim();
+    if (!code) return '';
+    return variant ? (code + ' (' + variant + ')') : code;
+}
+
+function findProjectByInput(input) {
+    const trimmed = (input || '').trim().toLowerCase();
+    if (!trimmed) return null;
+
+    const directMatch = projectsCache.find(p => projectDisplayKey(p).toLowerCase() === trimmed);
+    if (directMatch) return directMatch;
+
+    const codeMatches = projectsCache.filter(p => (p.code || '').toLowerCase() === trimmed);
+    if (codeMatches.length === 1) {
+        return codeMatches[0];
+    }
+    if (codeMatches.length > 1) {
+        alert('У проекта несколько вариантов. Укажите вариант в формате "CODE (variant)".');
+    }
+    return null;
+}
+
 function escapeHtml(text) {
     const div = document.createElement('div');
     div.textContent = text;
@@ -444,21 +480,21 @@ async function createConfig() {
         return;
     }
 
-    const projectName = document.getElementById('create-project-input').value.trim();
+    const projectCode = document.getElementById('create-project-input').value.trim();
     let projectUUID = '';
 
-    if (projectName) {
+    if (projectCode) {
-        const matchedProject = projectsCache.find(p => p.name.toLowerCase() === projectName.toLowerCase());
+        const matchedProject = findProjectByInput(projectCode);
         if (matchedProject) {
             if (!matchedProject.is_active) {
-                alert('Проект с таким названием находится в архиве. Восстановите его или выберите другой.');
+                alert('Проект с таким кодом находится в архиве. Восстановите его или выберите другой.');
                 return;
             }
             projectUUID = matchedProject.uuid;
         } else {
             pendingCreateConfigName = name;
-            pendingCreateProjectName = projectName;
+            pendingCreateProjectCode = projectCode;
-            openCreateProjectOnCreateModal(projectName);
+            openCreateProjectOnCreateModal(projectCode);
             return;
         }
     }
@@ -506,12 +542,14 @@ function openMoveProjectModal(uuid, configName, currentProjectUUID) {
     projectsCache.forEach(project => {
         if (!project.is_active) return;
         const option = document.createElement('option');
-        option.value = project.name;
+        option.value = projectDisplayKey(project);
+        option.label = project.name || '';
         options.appendChild(option);
     });
 
-    if (currentProjectUUID && projectNameByUUID[currentProjectUUID]) {
+    if (currentProjectUUID && projectCodeByUUID[currentProjectUUID]) {
-        input.value = projectNameByUUID[currentProjectUUID];
+        const variant = projectVariantByUUID[currentProjectUUID] || '';
+        input.value = variant ? (projectCodeByUUID[currentProjectUUID] + ' (' + variant + ')') : projectCodeByUUID[currentProjectUUID];
     } else {
         input.value = '';
     }
@@ -527,23 +565,23 @@ function closeMoveProjectModal() {
 
 async function confirmMoveProject() {
     const uuid = document.getElementById('move-project-uuid').value;
-    const projectName = document.getElementById('move-project-input').value.trim();
+    const projectCode = document.getElementById('move-project-input').value.trim();
 
     if (!uuid) return;
     let projectUUID = '';
 
-    if (projectName) {
+    if (projectCode) {
-        const matchedProject = projectsCache.find(p => p.name.toLowerCase() === projectName.toLowerCase());
+        const matchedProject = findProjectByInput(projectCode);
         if (matchedProject) {
             if (!matchedProject.is_active) {
-                alert('Проект с таким названием находится в архиве. Восстановите его или выберите другой.');
+                alert('Проект с таким кодом находится в архиве. Восстановите его или выберите другой.');
                 return;
             }
             projectUUID = matchedProject.uuid;
         } else {
             pendingMoveConfigUUID = uuid;
-            pendingMoveProjectName = projectName;
+            pendingMoveProjectCode = projectCode;
-            openCreateProjectOnMoveModal(projectName);
+            openCreateProjectOnMoveModal(projectCode);
             return;
         }
     }
@@ -560,7 +598,9 @@ function clearCreateProjectInput() {
 }
 
 function openCreateProjectOnMoveModal(projectName) {
-    document.getElementById('create-project-on-move-name').textContent = projectName;
+    document.getElementById('create-project-on-move-code').textContent = projectName;
+    document.getElementById('create-project-on-move-name').value = projectName;
+    document.getElementById('create-project-on-move-variant').value = '';
     document.getElementById('create-project-on-move-description').textContent = 'Создать и привязать квоту?';
     document.getElementById('create-project-on-move-confirm-btn').textContent = 'Создать и привязать';
     document.getElementById('create-project-on-move-modal').classList.remove('hidden');
@@ -568,7 +608,9 @@ function openCreateProjectOnMoveModal(projectName) {
 }
 
 function openCreateProjectOnCreateModal(projectName) {
-    document.getElementById('create-project-on-move-name').textContent = projectName;
+    document.getElementById('create-project-on-move-code').textContent = projectName;
+    document.getElementById('create-project-on-move-name').value = projectName;
+    document.getElementById('create-project-on-move-variant').value = '';
     document.getElementById('create-project-on-move-description').textContent = 'Создать и использовать для новой конфигурации?';
     document.getElementById('create-project-on-move-confirm-btn').textContent = 'Создать и использовать';
     document.getElementById('create-project-on-move-modal').classList.remove('hidden');
@@ -579,24 +621,30 @@ function closeCreateProjectOnMoveModal() {
     document.getElementById('create-project-on-move-modal').classList.add('hidden');
     document.getElementById('create-project-on-move-modal').classList.remove('flex');
     pendingMoveConfigUUID = '';
-    pendingMoveProjectName = '';
+    pendingMoveProjectCode = '';
     pendingCreateConfigName = '';
-    pendingCreateProjectName = '';
+    pendingCreateProjectCode = '';
+    document.getElementById('create-project-on-move-name').value = '';
+    document.getElementById('create-project-on-move-variant').value = '';
 }
 
 async function confirmCreateProjectOnMove() {
-    if (pendingCreateConfigName && pendingCreateProjectName) {
+    const projectNameInput = document.getElementById('create-project-on-move-name');
+    const projectVariantInput = document.getElementById('create-project-on-move-variant');
+    const projectName = (projectNameInput.value || '').trim();
+    const projectVariant = (projectVariantInput.value || '').trim();
+    if (pendingCreateConfigName && pendingCreateProjectCode) {
         const configName = pendingCreateConfigName;
-        const projectName = pendingCreateProjectName;
+        const projectCode = pendingCreateProjectCode;
         try {
             const createResp = await fetch('/api/projects', {
                 method: 'POST',
                 headers: {'Content-Type': 'application/json'},
-                body: JSON.stringify({ name: projectName })
+                body: JSON.stringify({ name: projectName, code: projectCode, variant: projectVariant })
             });
             if (!createResp.ok) {
                 if (createResp.status === 409) {
-                    alert('Проект с таким названием уже существует');
+                    alert('Проект с таким кодом и вариантом уже существует');
                     return;
                 }
                 const err = await createResp.json();
@@ -606,14 +654,14 @@ async function confirmCreateProjectOnMove() {
 
             const newProject = await createResp.json();
             pendingCreateConfigName = '';
-            pendingCreateProjectName = '';
+            pendingCreateProjectCode = '';
             await loadProjectsForConfigUI();
             const created = await createConfigWithProject(configName, newProject.uuid);
             if (created) {
                 closeCreateProjectOnMoveModal();
             } else {
                 closeCreateProjectOnMoveModal();
-                document.getElementById('create-project-input').value = projectName;
+                document.getElementById('create-project-input').value = projectCode;
             }
         } catch (e) {
             alert('Ошибка создания проекта');
@@ -622,8 +670,8 @@ async function confirmCreateProjectOnMove() {
     }
 
     const configUUID = pendingMoveConfigUUID;
-    const projectName = pendingMoveProjectName;
+    const projectCode = pendingMoveProjectCode;
-    if (!configUUID || !projectName) {
+    if (!configUUID || !projectCode) {
         closeCreateProjectOnMoveModal();
         return;
     }
@@ -632,11 +680,11 @@ async function confirmCreateProjectOnMove() {
         const createResp = await fetch('/api/projects', {
             method: 'POST',
             headers: {'Content-Type': 'application/json'},
-            body: JSON.stringify({ name: projectName })
+            body: JSON.stringify({ name: projectName, code: projectCode, variant: projectVariant })
         });
         if (!createResp.ok) {
             if (createResp.status === 409) {
-                alert('Проект с таким названием уже существует');
+                alert('Проект с таким кодом и вариантом уже существует');
                 return;
             }
             const err = await createResp.json();
@@ -646,9 +694,9 @@ async function confirmCreateProjectOnMove() {
 
         const newProject = await createResp.json();
         pendingMoveConfigUUID = '';
-        pendingMoveProjectName = '';
+        pendingMoveProjectCode = '';
         await loadProjectsForConfigUI();
-        document.getElementById('move-project-input').value = projectName;
+        document.getElementById('move-project-input').value = projectCode;
         const moved = await moveConfigToProject(configUUID, newProject.uuid);
         if (moved) {
             closeCreateProjectOnMoveModal();
@@ -835,6 +883,8 @@ document.getElementById('configs-search').addEventListener('input', function(e)
 async function loadProjectsForConfigUI() {
     projectsCache = [];
     projectNameByUUID = {};
+    projectCodeByUUID = {};
+    projectVariantByUUID = {};
     try {
         // Use /api/projects/all to get all projects without pagination
         const resp = await fetch('/api/projects/all');
@@ -847,7 +897,11 @@ async function loadProjectsForConfigUI() {
         projectsCache = allProjects;
 
         allProjects.forEach(project => {
-            projectNameByUUID[project.uuid] = project.name;
+            const variant = (project.variant || '').trim();
+            const baseName = project.name || '';
+            projectNameByUUID[project.uuid] = variant ? (baseName + ' (' + variant + ')') : baseName;
+            projectCodeByUUID[project.uuid] = project.code || '';
+            projectVariantByUUID[project.uuid] = project.variant || '';
         });
 
         const createOptions = document.getElementById('create-project-options');
@@ -856,7 +910,8 @@ async function loadProjectsForConfigUI() {
             projectsCache.forEach(project => {
                 if (!project.is_active) return;
                 const option = document.createElement('option');
-                option.value = project.name;
+                option.value = projectDisplayKey(project);
+                option.label = project.name || '';
                 createOptions.appendChild(option);
             });
         }

web/templates/index.html

@@ -5,14 +5,25 @@
     <!-- Header with config name and back button -->
     <div class="flex items-center justify-between">
         <div class="flex items-center space-x-4">
-            <a href="/configs" class="text-gray-500 hover:text-gray-700">
+            <a href="/projects" class="text-gray-500 hover:text-gray-700" title="Все проекты">
                 <svg class="w-5 h-5" fill="none" stroke="currentColor" viewBox="0 0 24 24">
-                    <path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M15 19l-7-7 7-7"></path>
+                    <path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M3 9.75L12 3l9 6.75v9A2.25 2.25 0 0118.75 21h-13.5A2.25 2.25 0 013 18.75v-9z"></path>
+                    <path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M9 21v-6h6v6"></path>
                 </svg>
             </a>
-            <h1 class="text-2xl font-bold">
+            <div class="text-2xl font-bold flex items-center gap-2" id="config-breadcrumbs">
-                <span id="config-name">Конфигуратор</span>
+                <a id="breadcrumb-project-code-link" href="/projects" class="text-blue-700 hover:underline">
-            </h1>
+                    <span id="breadcrumb-project-code">—</span>
+                </a>
+                <span class="text-gray-400">-</span>
+                <a id="breadcrumb-project-variant-link" href="/projects" class="text-blue-700 hover:underline">
+                    <span id="breadcrumb-project-variant">main</span>
+                </a>
+                <span class="text-gray-400">-</span>
+                <span id="breadcrumb-config-name">Конфигуратор</span>
+                <span class="text-gray-400">-</span>
+                <span id="breadcrumb-config-version">v1</span>
+            </div>
         </div>
         <div id="save-buttons" class="hidden flex items-center space-x-2">
             <button id="refresh-prices-btn" onclick="refreshPrices()" class="px-4 py-2 bg-blue-600 text-white rounded hover:bg-blue-700">
@@ -329,6 +340,67 @@ let configUUID = '{{.ConfigUUID}}';
 let configName = '';
 let projectUUID = '';
 let projectName = '';
+let projectCode = '';
+let projectVariant = '';
+let projectIndexLoaded = false;
+let projectByUUID = {};
+let projectMainByCode = {};
+
+async function loadProjectIndex() {
+    if (projectIndexLoaded) return;
+    try {
+        const resp = await fetch('/api/projects/all');
+        if (!resp.ok) return;
+        const data = await resp.json();
+        const allProjects = Array.isArray(data) ? data : (data.projects || []);
+        projectByUUID = {};
+        projectMainByCode = {};
+        allProjects.forEach(p => {
+            projectByUUID[p.uuid] = p;
+            const code = (p.code || '').trim();
+            const variant = (p.variant || '').trim();
+            if (code && (variant === '' || variant === 'main')) {
+                if (!projectMainByCode[code]) {
+                    projectMainByCode[code] = p.uuid;
+                }
+            }
+        });
+        projectIndexLoaded = true;
+    } catch (e) {
+        // ignore
+    }
+}
+
+function updateConfigBreadcrumbs() {
+    const codeEl = document.getElementById('breadcrumb-project-code');
+    const variantEl = document.getElementById('breadcrumb-project-variant');
+    const configEl = document.getElementById('breadcrumb-config-name');
+    const versionEl = document.getElementById('breadcrumb-config-version');
+    const projectCodeLinkEl = document.getElementById('breadcrumb-project-code-link');
+    const projectVariantLinkEl = document.getElementById('breadcrumb-project-variant-link');
+
+    let code = 'Без проекта';
+    let variant = 'main';
+    if (projectUUID && projectByUUID[projectUUID]) {
+        code = (projectByUUID[projectUUID].code || '').trim() || 'Без проекта';
+        const rawVariant = (projectByUUID[projectUUID].variant || '').trim();
+        variant = rawVariant === '' ? 'main' : rawVariant;
+        if (projectCodeLinkEl) {
+            const mainUUID = projectMainByCode[code];
+            projectCodeLinkEl.href = mainUUID ? ('/projects/' + mainUUID) : ('/projects/' + projectUUID);
+        }
+        if (projectVariantLinkEl) {
+            projectVariantLinkEl.href = '/projects/' + projectUUID;
+        }
+    } else {
+        if (projectCodeLinkEl) projectCodeLinkEl.href = '/projects';
+        if (projectVariantLinkEl) projectVariantLinkEl.href = '/projects';
+    }
+    codeEl.textContent = code;
+    variantEl.textContent = variant;
+    configEl.textContent = configName || 'Конфигурация';
+    versionEl.textContent = 'v1';
+}
 let currentTab = 'base';
 let allComponents = [];
 let cart = [];
@@ -617,7 +689,8 @@ document.addEventListener('DOMContentLoaded', async function() {
         const config = await resp.json();
         configName = config.name;
         projectUUID = config.project_uuid || '';
-        document.getElementById('config-name').textContent = config.name;
+        await loadProjectIndex();
+        updateConfigBreadcrumbs();
         document.getElementById('save-buttons').classList.remove('hidden');
 
         // Set server count from config

web/templates/pricelist_detail.html

@@ -3,9 +3,10 @@
 {{define "content"}}
 <div class="space-y-6">
     <div class="flex items-center space-x-4">
-        <a href="/pricelists" class="text-gray-500 hover:text-gray-700">
+        <a href="/projects" class="text-gray-500 hover:text-gray-700" title="Все проекты">
             <svg class="w-5 h-5" fill="none" stroke="currentColor" viewBox="0 0 24 24">
-                <path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M15 19l-7-7 7-7"></path>
+                <path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M3 9.75L12 3l9 6.75v9A2.25 2.25 0 0118.75 21h-13.5A2.25 2.25 0 013 18.75v-9z"></path>
+                <path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M9 21v-6h6v6"></path>
             </svg>
         </a>
         <h1 id="page-title" class="text-2xl font-bold text-gray-900">Загрузка...</h1>

web/templates/project_detail.html

@@ -4,23 +4,43 @@
 <div class="space-y-4">
     <div class="flex items-center justify-between gap-3">
         <div class="flex items-center gap-3">
-            <a href="/projects" class="text-gray-500 hover:text-gray-700" title="Назад к проектам">
+            <a href="/projects" class="text-gray-500 hover:text-gray-700" title="Все проекты">
                 <svg class="w-5 h-5" fill="none" stroke="currentColor" viewBox="0 0 24 24">
-                    <path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M15 19l-7-7 7-7"></path>
+                    <path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M3 9.75L12 3l9 6.75v9A2.25 2.25 0 0118.75 21h-13.5A2.25 2.25 0 013 18.75v-9z"></path>
+                    <path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M9 21v-6h6v6"></path>
                 </svg>
             </a>
-            <h1 class="text-2xl font-bold" id="project-title">Проект</h1>
+            <div class="text-2xl font-bold flex items-center gap-2">
+                <a id="project-code-link" href="/projects" class="text-blue-700 hover:underline">
+                    <span id="project-code">—</span>
+                </a>
+                <span class="text-gray-400">-</span>
+                <div class="relative">
+                    <button id="project-variant-button" type="button" class="inline-flex items-center gap-2 text-base font-medium px-3 py-1.5 rounded-lg bg-gray-100 hover:bg-gray-200 border border-gray-200">
+                        <span id="project-variant-label">main</span>
+                        <svg class="w-4 h-4 text-gray-500" fill="none" stroke="currentColor" viewBox="0 0 24 24">
+                            <path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M19 9l-7 7-7-7"></path>
+                        </svg>
+                    </button>
+                    <div id="project-variant-menu" class="absolute left-0 mt-2 min-w-[10rem] rounded-lg border border-gray-200 bg-white shadow-lg hidden z-10">
+                        <div id="project-variant-list" class="py-1"></div>
+                    </div>
+                </div>
+            </div>
         </div>
     </div>
 
-    <div id="action-buttons" class="mt-4 grid grid-cols-1 sm:grid-cols-3 gap-3">
+    <div id="action-buttons" class="mt-4 grid grid-cols-1 sm:grid-cols-4 gap-3">
-        <button onclick="openCreateModal()" class="py-3 bg-blue-600 text-white rounded-lg hover:bg-blue-700 font-medium">
+        <button onclick="openNewVariantModal()" class="py-2 bg-purple-600 text-white rounded-lg hover:bg-purple-700 font-medium">
+            + Новый вариант
+        </button>
+        <button onclick="openCreateModal()" class="py-2 bg-blue-600 text-white rounded-lg hover:bg-blue-700 font-medium">
             + Создать новую квоту
         </button>
-        <button onclick="openImportModal()" class="py-3 bg-indigo-600 text-white rounded-lg hover:bg-indigo-700 font-medium">
+        <button onclick="openImportModal()" class="py-2 bg-indigo-600 text-white rounded-lg hover:bg-indigo-700 font-medium">
             Импорт квоты
         </button>
-        <button onclick="openProjectSettingsModal()" class="py-3 bg-gray-700 text-white rounded-lg hover:bg-gray-800 font-medium">
+        <button onclick="openProjectSettingsModal()" class="py-2 bg-gray-700 text-white rounded-lg hover:bg-gray-800 font-medium">
             Параметры
         </button>
     </div>
@@ -61,6 +81,33 @@
     </div>
 </div>
 
+<div id="new-variant-modal" class="fixed inset-0 bg-black bg-opacity-50 hidden items-center justify-center z-50">
+    <div class="bg-white rounded-lg shadow-xl w-full max-w-lg p-6">
+        <h2 class="text-xl font-semibold mb-4">Новый вариант</h2>
+        <div class="space-y-4">
+            <div>
+                <label class="block text-sm font-medium text-gray-700 mb-1">Код проекта</label>
+                <div id="new-variant-code" class="px-3 py-2 bg-gray-50 border rounded text-sm text-gray-700">—</div>
+            </div>
+            <div>
+                <label for="new-variant-name" class="block text-sm font-medium text-gray-700 mb-1">Название (необязательно)</label>
+                <input id="new-variant-name" type="text" placeholder="Например: Lenovo"
+                       class="w-full px-3 py-2 border rounded focus:ring-2 focus:ring-blue-500 focus:border-blue-500">
+            </div>
+            <div>
+                <label for="new-variant-value" class="block text-sm font-medium text-gray-700 mb-1">Вариант</label>
+                <input id="new-variant-value" type="text" placeholder="Например: Lenovo"
+                       class="w-full px-3 py-2 border rounded focus:ring-2 focus:ring-blue-500 focus:border-blue-500">
+                <div class="text-xs text-gray-500 mt-1">Оставьте пустым для main нельзя — нужно уникальное значение.</div>
+            </div>
+        </div>
+        <div class="mt-6 flex justify-end gap-2">
+            <button onclick="closeNewVariantModal()" class="px-4 py-2 text-gray-700 bg-gray-100 rounded hover:bg-gray-200">Отмена</button>
+            <button onclick="createNewVariant()" class="px-4 py-2 text-white bg-purple-600 rounded hover:bg-purple-700">Создать</button>
+        </div>
+    </div>
+</div>
+
 <div id="rename-modal" class="fixed inset-0 bg-black bg-opacity-50 hidden items-center justify-center z-50">
     <div class="bg-white rounded-lg shadow-xl w-full max-w-md mx-4 p-6">
         <h2 class="text-xl font-semibold mb-4">Переименовать квоту</h2>
@@ -120,6 +167,16 @@
     <div class="bg-white rounded-lg shadow-xl w-full max-w-md mx-4 p-6">
         <h2 class="text-xl font-semibold mb-4">Параметры проекта</h2>
         <div class="space-y-4">
+            <div>
+                <label class="block text-sm font-medium text-gray-700 mb-1">Код проекта</label>
+                <input type="text" id="project-settings-code"
+                       class="w-full px-3 py-2 border rounded focus:ring-2 focus:ring-blue-500 focus:border-blue-500">
+            </div>
+            <div>
+                <label class="block text-sm font-medium text-gray-700 mb-1">Вариант (необязательно)</label>
+                <input type="text" id="project-settings-variant"
+                       class="w-full px-3 py-2 border rounded focus:ring-2 focus:ring-blue-500 focus:border-blue-500">
+            </div>
             <div>
                 <label class="block text-sm font-medium text-gray-700 mb-1">Название проекта</label>
                 <input type="text" id="project-settings-name"
@@ -144,6 +201,8 @@ const projectUUID = '{{.ProjectUUID}}';
 let configStatusMode = 'active';
 let project = null;
 let allConfigs = [];
+let projectVariants = [];
+let variantMenuInitialized = false;
 
 function escapeHtml(text) {
     const div = document.createElement('div');
@@ -157,6 +216,91 @@ function resolveProjectTrackerURL(projectData) {
     return explicitURL;
 }
 
+function formatProjectTitle(projectData) {
+    if (!projectData) return 'Проект';
+    const code = (projectData.code || '').trim();
+    const name = (projectData.name || '').trim();
+    const variant = (projectData.variant || '').trim();
+    if (!code) return name || 'Проект';
+    if (variant) {
+        return code + ': (' + variant + ') ' + (name || '');
+    }
+    return code + ': ' + (name || '');
+}
+
+function normalizeVariantLabel(variant) {
+    const trimmed = (variant || '').trim();
+    return trimmed === '' ? 'main' : trimmed;
+}
+
+async function loadVariantsForCode(code) {
+    if (!code) return;
+    try {
+        const resp = await fetch('/api/projects/all');
+        if (!resp.ok) return;
+        const data = await resp.json();
+        const allProjects = Array.isArray(data) ? data : (data.projects || []);
+        projectVariants = allProjects
+            .filter(p => (p.code || '').trim() === code)
+            .map(p => ({uuid: p.uuid, variant: (p.variant || '').trim()}));
+        projectVariants.sort((a, b) => normalizeVariantLabel(a.variant).localeCompare(normalizeVariantLabel(b.variant)));
+    } catch (e) {
+        // ignore
+    }
+}
+
+function renderVariantSelect() {
+    const list = document.getElementById('project-variant-list');
+    const menu = document.getElementById('project-variant-menu');
+    const button = document.getElementById('project-variant-button');
+    const label = document.getElementById('project-variant-label');
+    const codeLink = document.getElementById('project-code-link');
+    if (!list || !menu || !button || !label) return;
+    list.innerHTML = '';
+    const variants = projectVariants.length ? projectVariants : [{uuid: projectUUID, variant: (project && project.variant) || ''}];
+    let mainUUID = '';
+    variants.forEach(item => {
+        const variantLabel = normalizeVariantLabel(item.variant);
+        if (variantLabel === 'main' && !mainUUID) {
+            mainUUID = item.uuid;
+        }
+        const option = document.createElement('button');
+        option.type = 'button';
+        option.className = 'w-full text-left px-3 py-2 text-sm hover:bg-gray-50';
+        if (item.uuid === projectUUID) {
+            option.className += ' font-semibold text-gray-900';
+            label.textContent = variantLabel;
+        }
+        option.textContent = variantLabel;
+        option.onclick = function() {
+            menu.classList.add('hidden');
+            if (item.uuid && item.uuid !== projectUUID) {
+                window.location.href = '/projects/' + item.uuid;
+            }
+        };
+        list.appendChild(option);
+    });
+
+    if (codeLink) {
+        const targetMain = mainUUID || projectUUID;
+        codeLink.href = '/projects/' + targetMain;
+    }
+
+    if (!variantMenuInitialized) {
+        button.onclick = function(e) {
+            e.stopPropagation();
+            menu.classList.toggle('hidden');
+        };
+        document.addEventListener('click', function() {
+            menu.classList.add('hidden');
+        });
+        menu.addEventListener('click', function(e) {
+            e.stopPropagation();
+        });
+        variantMenuInitialized = true;
+    }
+}
+
 function setConfigStatusMode(mode) {
     if (mode !== 'active' && mode !== 'archived') return;
     configStatusMode = mode;
@@ -254,7 +398,9 @@ async function loadProject() {
         return false;
     }
     project = await resp.json();
-    document.getElementById('project-title').textContent = project.name;
+    document.getElementById('project-code').textContent = project.code || '—';
+    await loadVariantsForCode(project.code || '');
+    renderVariantSelect();
     const trackerLink = document.getElementById('tracker-link');
     if (trackerLink) {
         if (project && project.is_system) {
@@ -297,6 +443,56 @@ function openCreateModal() {
     document.getElementById('create-name').focus();
 }
 
+function openNewVariantModal() {
+    if (!project) return;
+    document.getElementById('new-variant-code').textContent = (project.code || '').trim() || '—';
+    document.getElementById('new-variant-name').value = project.name || '';
+    document.getElementById('new-variant-value').value = '';
+    document.getElementById('new-variant-modal').classList.remove('hidden');
+    document.getElementById('new-variant-modal').classList.add('flex');
+    document.getElementById('new-variant-value').focus();
+}
+
+function closeNewVariantModal() {
+    document.getElementById('new-variant-modal').classList.add('hidden');
+    document.getElementById('new-variant-modal').classList.remove('flex');
+}
+
+async function createNewVariant() {
+    if (!project) return;
+    const code = (project.code || '').trim();
+    const variant = (document.getElementById('new-variant-value').value || '').trim();
+    const nameRaw = (document.getElementById('new-variant-name').value || '').trim();
+    if (!code || !variant) {
+        showToast('Укажите вариант', 'error');
+        return;
+    }
+    const payload = {
+        code: code,
+        variant: variant,
+        name: nameRaw ? nameRaw : null
+    };
+    const resp = await fetch('/api/projects', {
+        method: 'POST',
+        headers: {'Content-Type': 'application/json'},
+        body: JSON.stringify(payload)
+    });
+    if (!resp.ok) {
+        const data = await resp.json().catch(() => ({}));
+        showToast(data.error || 'Ошибка создания варианта', 'error');
+        return;
+    }
+    const created = await resp.json().catch(() => null);
+    closeNewVariantModal();
+    showToast('Вариант создан', 'success');
+    if (created && created.uuid) {
+        window.location.href = '/projects/' + created.uuid;
+        return;
+    }
+    loadProject();
+    loadConfigs();
+}
+
 function closeCreateModal() {
     document.getElementById('create-modal').classList.add('hidden');
     document.getElementById('create-modal').classList.remove('flex');
@@ -429,6 +625,8 @@ function openProjectSettingsModal() {
         alert('Системный проект нельзя редактировать');
         return;
     }
+    document.getElementById('project-settings-code').value = project.code || '';
+    document.getElementById('project-settings-variant').value = project.variant || '';
     document.getElementById('project-settings-name').value = project.name || '';
     document.getElementById('project-settings-tracker-url').value = (project.tracker_url || '').trim();
     document.getElementById('project-settings-modal').classList.remove('hidden');
@@ -442,27 +640,31 @@ function closeProjectSettingsModal() {
 
 async function saveProjectSettings() {
     if (!project) return;
+    const code = document.getElementById('project-settings-code').value.trim();
+    const variant = document.getElementById('project-settings-variant').value.trim();
     const name = document.getElementById('project-settings-name').value.trim();
     const trackerURL = document.getElementById('project-settings-tracker-url').value.trim();
-    if (!name) {
+    if (!code) {
-        alert('Введите название проекта');
+        alert('Введите код проекта');
         return;
     }
     const resp = await fetch('/api/projects/' + projectUUID, {
         method: 'PUT',
         headers: {'Content-Type': 'application/json'},
-        body: JSON.stringify({name: name, tracker_url: trackerURL})
+        body: JSON.stringify({code: code, variant: variant, name: name, tracker_url: trackerURL})
     });
     if (!resp.ok) {
         if (resp.status === 409) {
-            alert('Проект с таким названием уже существует');
+            alert('Проект с таким кодом и вариантом уже существует');
             return;
         }
         alert('Не удалось сохранить параметры проекта');
         return;
     }
     project = await resp.json();
-    document.getElementById('project-title').textContent = project.name;
+    document.getElementById('project-code').textContent = project.code || '—';
+    await loadVariantsForCode(project.code || '');
+    renderVariantSelect();
     const trackerLink = document.getElementById('tracker-link');
     if (trackerLink) {
         const trackerURLResolved = resolveProjectTrackerURL(project);
@@ -557,6 +759,7 @@ function wildcardMatch(value, pattern) {
 
 document.getElementById('create-modal').addEventListener('click', function(e) { if (e.target === this) closeCreateModal(); });
 document.getElementById('rename-modal').addEventListener('click', function(e) { if (e.target === this) closeRenameModal(); });
+document.getElementById('new-variant-modal').addEventListener('click', function(e) { if (e.target === this) closeNewVariantModal(); });
 document.getElementById('clone-modal').addEventListener('click', function(e) { if (e.target === this) closeCloneModal(); });
 document.getElementById('import-modal').addEventListener('click', function(e) { if (e.target === this) closeImportModal(); });
 document.getElementById('project-settings-modal').addEventListener('click', function(e) { if (e.target === this) closeProjectSettingsModal(); });

web/templates/projects.html

@@ -20,7 +20,7 @@
     </div>
 
     <div class="max-w-md">
-        <input id="projects-search" type="text" placeholder="Поиск проекта по названию"
+        <input id="projects-search" type="text" placeholder="Поиск проекта по названию или коду"
                class="w-full px-3 py-2 border rounded focus:ring-2 focus:ring-blue-500 focus:border-blue-500">
     </div>
 
@@ -31,11 +31,21 @@
     <div class="bg-white rounded-lg shadow-xl w-full max-w-md mx-4 p-6">
         <h2 class="text-xl font-semibold mb-4">Новый проект</h2>
         <div class="space-y-4">
+            <div>
+                <label for="create-project-name" class="block text-sm font-medium text-gray-700 mb-1">Название проекта</label>
+                <input id="create-project-name" type="text" placeholder="Например: Инфраструктура для OPS-123"
+                       class="w-full px-3 py-2 border rounded focus:ring-2 focus:ring-blue-500 focus:border-blue-500">
+            </div>
             <div>
                 <label for="create-project-code" class="block text-sm font-medium text-gray-700 mb-1">Код проекта</label>
                 <input id="create-project-code" type="text" placeholder="Например: OPS-123"
                        class="w-full px-3 py-2 border rounded focus:ring-2 focus:ring-blue-500 focus:border-blue-500">
             </div>
+            <div>
+                <label for="create-project-variant" class="block text-sm font-medium text-gray-700 mb-1">Вариант (необязательно)</label>
+                <input id="create-project-variant" type="text" placeholder="Например: Lenovo"
+                       class="w-full px-3 py-2 border rounded focus:ring-2 focus:ring-blue-500 focus:border-blue-500">
+            </div>
             <div>
                 <label for="create-project-tracker-url" class="block text-sm font-medium text-gray-700 mb-1">Ссылка на трекер</label>
                 <input id="create-project-tracker-url" type="url" placeholder="https://tracker.yandex.ru/OPS-123"
@@ -59,6 +69,8 @@ let sortField = 'created_at';
 let sortDir = 'desc';
 let createProjectTrackerManuallyEdited = false;
 let createProjectLastAutoTrackerURL = '';
+let variantsByCode = {};
+let variantsLoaded = false;
 
 const trackerBaseURL = 'https://tracker.yandex.ru/';
 
@@ -85,6 +97,55 @@ function formatDateTime(value) {
     });
 }
 
+function normalizeVariant(variant) {
+    const trimmed = (variant || '').trim();
+    return trimmed === '' ? 'main' : trimmed;
+}
+
+function renderVariantChips(code, fallbackVariant, fallbackUUID) {
+    const variants = variantsByCode[code || ''] || [];
+    if (!variants.length) {
+        const single = normalizeVariant(fallbackVariant);
+        const href = fallbackUUID ? ('/projects/' + fallbackUUID) : '/projects';
+        return '<a href="' + href + '" class="inline-flex items-center px-2 py-0.5 text-xs rounded-full bg-gray-100 text-gray-600 hover:bg-gray-200 hover:text-gray-900">' + escapeHtml(single) + '</a>';
+    }
+    return variants.map(v => {
+        const href = v.uuid ? ('/projects/' + v.uuid) : '/projects';
+        return '<a href="' + href + '" class="inline-flex items-center px-2 py-0.5 text-xs rounded-full bg-gray-100 text-gray-700 hover:bg-gray-200 hover:text-gray-900">' + escapeHtml(v.label) + '</a>';
+    }).join(' ');
+}
+
+async function loadVariantsIndex() {
+    if (variantsLoaded) return;
+    try {
+        const resp = await fetch('/api/projects/all');
+        if (!resp.ok) return;
+        const data = await resp.json();
+        const allProjects = Array.isArray(data) ? data : (data.projects || []);
+        variantsByCode = {};
+        allProjects.forEach(p => {
+            const code = (p.code || '').trim();
+            const variant = normalizeVariant(p.variant);
+            if (!variantsByCode[code]) {
+                variantsByCode[code] = [];
+            }
+            if (!variantsByCode[code].some(v => v.label === variant)) {
+                variantsByCode[code].push({label: variant, uuid: p.uuid});
+            }
+        });
+        Object.keys(variantsByCode).forEach(code => {
+            variantsByCode[code].sort((a, b) => {
+                if (a.label === 'main') return -1;
+                if (b.label === 'main') return 1;
+                return a.label.localeCompare(b.label);
+            });
+        });
+        variantsLoaded = true;
+    } catch (e) {
+        // ignore
+    }
+}
+
 function toggleSort(field) {
     if (sortField === field) {
         sortDir = sortDir === 'asc' ? 'desc' : 'asc';
@@ -132,10 +193,33 @@ async function loadProjects() {
         }
         const data = await resp.json();
         rows = data.projects || [];
+        if (Array.isArray(rows) && rows.length) {
+            const byCode = {};
+            rows.forEach(p => {
+                const codeKey = (p.code || '').trim();
+                if (!codeKey) {
+                    const fallbackKey = p.uuid || Math.random().toString(36);
+                    byCode[fallbackKey] = p;
+                    return;
+                }
+                const variant = (p.variant || '').trim();
+                if (!byCode[codeKey]) {
+                    byCode[codeKey] = p;
+                    return;
+                }
+                const current = byCode[codeKey];
+                const currentVariant = (current.variant || '').trim();
+                if (currentVariant !== '' && variant === '') {
+                    byCode[codeKey] = p;
+                }
+            });
+            rows = Object.values(byCode);
+        }
         total = data.total || 0;
         totalPages = data.total_pages || 0;
         page = data.page || currentPage;
         currentPage = page;
+        await loadVariantsIndex();
     } catch (e) {
         root.innerHTML = '<div class="text-red-600">Ошибка загрузки проектов: ' + escapeHtml(String(e.message || e)) + '</div>';
         return;
@@ -144,27 +228,22 @@ async function loadProjects() {
     let html = '<div class="overflow-x-auto"><table class="w-full">';
     html += '<thead class="bg-gray-50">';
     html += '<tr>';
+    html += '<th class="px-4 py-3 text-left text-xs font-medium text-gray-500 uppercase">Код</th>';
     html += '<th class="px-4 py-3 text-left text-xs font-medium text-gray-500 uppercase">';
-    html += '<button type="button" onclick="toggleSort(\'name\')" class="inline-flex items-center gap-1 hover:text-gray-700">Название проекта';
+    html += '<button type="button" onclick="toggleSort(\'name\')" class="inline-flex items-center gap-1 hover:text-gray-700">Название';
     if (sortField === 'name') {
         html += sortDir === 'asc' ? ' <span>↑</span>' : ' <span>↓</span>';
     }
     html += '</button></th>';
-    html += '<th class="px-4 py-3 text-left text-xs font-medium text-gray-500 uppercase">Автор</th>';
+    html += '<th class="px-4 py-3 text-left text-xs font-medium text-gray-500 uppercase">Создан @ автор</th>';
-    html += '<th class="px-4 py-3 text-left text-xs font-medium text-gray-500 uppercase">';
+    html += '<th class="px-4 py-3 text-left text-xs font-medium text-gray-500 uppercase">Изменен @ кто</th>';
-    html += '<button type="button" onclick="toggleSort(\'created_at\')" class="inline-flex items-center gap-1 hover:text-gray-700">Создан';
+    html += '<th class="px-4 py-3 text-left text-xs font-medium text-gray-500 uppercase">Варианты</th>';
-    if (sortField === 'created_at') {
-        html += sortDir === 'asc' ? ' <span>↑</span>' : ' <span>↓</span>';
-    }
-    html += '</button></th>';
-    html += '<th class="px-4 py-3 text-right text-xs font-medium text-gray-500 uppercase">Кол-во квот</th>';
-    html += '<th class="px-4 py-3 text-right text-xs font-medium text-gray-500 uppercase">Сумма</th>';
     html += '<th class="px-4 py-3 text-right text-xs font-medium text-gray-500 uppercase">Действия</th>';
     html += '</tr>';
     html += '<tr>';
     html += '<th class="px-4 py-2"></th>';
-    html += '<th class="px-4 py-2"><input id="projects-author-filter" type="text" value="' + escapeHtml(authorSearch) + '" placeholder="Фильтр автора" class="w-full px-2 py-1 border rounded text-xs focus:ring-1 focus:ring-blue-500 focus:border-blue-500"></th>';
     html += '<th class="px-4 py-2"></th>';
+    html += '<th class="px-4 py-2"><input id="projects-author-filter" type="text" value="' + escapeHtml(authorSearch) + '" placeholder="Фильтр автора" class="w-full px-2 py-1 border rounded text-xs focus:ring-1 focus:ring-blue-500 focus:border-blue-500"></th>';
     html += '<th class="px-4 py-2"></th>';
     html += '<th class="px-4 py-2"></th>';
     html += '<th class="px-4 py-2"></th>';
@@ -177,19 +256,26 @@ async function loadProjects() {
 
         rows.forEach(p => {
             html += '<tr class="hover:bg-gray-50">';
-        html += '<td class="px-4 py-3 text-sm font-medium"><a class="text-blue-600 hover:underline" href="/projects/' + p.uuid + '">' + escapeHtml(p.name) + '</a></td>';
+        const displayName = p.name || '';
-        html += '<td class="px-4 py-3 text-sm text-gray-600">' + escapeHtml(p.owner_username || '—') + '</td>';
+        const createdBy = p.owner_username || '—';
-        html += '<td class="px-4 py-3 text-sm text-gray-600">' + escapeHtml(formatDateTime(p.created_at)) + '</td>';
+        const updatedBy = '—';
-        html += '<td class="px-4 py-3 text-sm text-right text-gray-700">' + (p.config_count || 0) + '</td>';
+        const createdLabel = formatDateTime(p.created_at) + ' @ ' + createdBy;
-        html += '<td class="px-4 py-3 text-sm text-right text-gray-700">' + formatMoney(p.total) + '</td>';
+        const updatedLabel = formatDateTime(p.updated_at) + ' @ ' + updatedBy;
+        const variantChips = renderVariantChips(p.code, p.variant, p.uuid);
+        html += '<td class="px-4 py-3 text-sm font-medium"><a class="text-blue-600 hover:underline" href="/projects/' + p.uuid + '">' + escapeHtml(p.code || '—') + '</a></td>';
+        html += '<td class="px-4 py-3 text-sm text-gray-700">' + escapeHtml(displayName) + '</td>';
+        html += '<td class="px-4 py-3 text-sm text-gray-600">' + escapeHtml(createdLabel) + '</td>';
+        html += '<td class="px-4 py-3 text-sm text-gray-600">' + escapeHtml(updatedLabel) + '</td>';
+        html += '<td class="px-4 py-3 text-sm">' + variantChips + '</td>';
         html += '<td class="px-4 py-3 text-sm text-right"><div class="inline-flex items-center gap-2">';
 
         if (p.is_active) {
-            html += '<button onclick="copyProject(\'' + p.uuid + '\', \'' + escapeHtml(p.name).replace(/'/g, "\\'") + '\')" class="text-green-700 hover:text-green-900" title="Копировать">';
+            const safeName = escapeHtml(displayName).replace(/'/g, "\\'");
+            html += '<button onclick="copyProject(' + JSON.stringify(p.uuid) + ', ' + JSON.stringify(displayName) + ')" class="text-green-700 hover:text-green-900" title="Копировать">';
             html += '<svg class="w-5 h-5" fill="none" stroke="currentColor" viewBox="0 0 24 24"><path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M8 16H6a2 2 0 01-2-2V6a2 2 0 012-2h8a2 2 0 012 2v2m-6 12h8a2 2 0 002-2v-8a2 2 0 00-2-2h-8a2 2 0 00-2 2v8a2 2 0 002 2z"></path></svg>';
             html += '</button>';
 
-            html += '<button onclick="renameProject(\'' + p.uuid + '\', \'' + escapeHtml(p.name).replace(/'/g, "\\'") + '\')" class="text-blue-700 hover:text-blue-900" title="Переименовать">';
+            html += '<button onclick="renameProject(' + JSON.stringify(p.uuid) + ', ' + JSON.stringify(displayName) + ')" class="text-blue-700 hover:text-blue-900" title="Переименовать">';
             html += '<svg class="w-5 h-5" fill="none" stroke="currentColor" viewBox="0 0 24 24"><path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M11 5H6a2 2 0 00-2 2v11a2 2 0 002 2h11a2 2 0 002-2v-5m-1.414-9.414a2 2 0 112.828 2.828L11.828 15H9v-2.828l8.586-8.586z"></path></svg>';
             html += '</button>';
 
@@ -251,15 +337,19 @@ function buildTrackerURLFromProjectCode(projectCode) {
 }
 
 function openCreateProjectModal() {
+    const nameInput = document.getElementById('create-project-name');
     const codeInput = document.getElementById('create-project-code');
+    const variantInput = document.getElementById('create-project-variant');
     const trackerInput = document.getElementById('create-project-tracker-url');
+    nameInput.value = '';
     codeInput.value = '';
+    variantInput.value = '';
     trackerInput.value = '';
     createProjectTrackerManuallyEdited = false;
     createProjectLastAutoTrackerURL = '';
     document.getElementById('create-project-modal').classList.remove('hidden');
     document.getElementById('create-project-modal').classList.add('flex');
-    codeInput.focus();
+    nameInput.focus();
 }
 
 function closeCreateProjectModal() {
@@ -278,10 +368,14 @@ function updateCreateProjectTrackerURL() {
 }
 
 async function createProject() {
+    const nameInput = document.getElementById('create-project-name');
     const codeInput = document.getElementById('create-project-code');
+    const variantInput = document.getElementById('create-project-variant');
     const trackerInput = document.getElementById('create-project-tracker-url');
-    const name = (codeInput.value || '').trim();
+    const name = (nameInput.value || '').trim();
-    if (!name) {
+    const code = (codeInput.value || '').trim();
+    const variant = (variantInput.value || '').trim();
+    if (!code) {
         alert('Введите код проекта');
         return;
     }
@@ -290,12 +384,14 @@ async function createProject() {
         headers: {'Content-Type': 'application/json'},
         body: JSON.stringify({
             name: name,
+            code: code,
+            variant: variant,
             tracker_url: (trackerInput.value || '').trim()
         })
     });
     if (!resp.ok) {
         if (resp.status === 409) {
-            alert('Проект с таким названием уже существует');
+            alert('Проект с таким кодом и вариантом уже существует');
             return;
         }
         alert('Не удалось создать проект');
@@ -361,15 +457,18 @@ async function addConfigToProject(projectUUID) {
 async function copyProject(projectUUID, projectName) {
     const newName = prompt('Название копии проекта', projectName + ' (копия)');
     if (!newName || !newName.trim()) return;
+    const newCode = prompt('Код проекта', '');
+    if (!newCode || !newCode.trim()) return;
+    const newVariant = prompt('Вариант (необязательно)', '');
 
     const createResp = await fetch('/api/projects', {
         method: 'POST',
         headers: {'Content-Type': 'application/json'},
-        body: JSON.stringify({name: newName.trim()})
+        body: JSON.stringify({name: newName.trim(), code: newCode.trim(), variant: (newVariant || '').trim()})
     });
     if (!createResp.ok) {
         if (createResp.status === 409) {
-            alert('Проект с таким названием уже существует');
+            alert('Проект с таким кодом и вариантом уже существует');
             return;
         }
         alert('Не удалось создать копию проекта');
@@ -410,6 +509,13 @@ document.addEventListener('DOMContentLoaded', function() {
         updateCreateProjectTrackerURL();
     });
 
+    document.getElementById('create-project-name').addEventListener('keydown', function(e) {
+        if (e.key === 'Enter') {
+            e.preventDefault();
+            createProject();
+        }
+    });
+
     document.getElementById('create-project-tracker-url').addEventListener('input', function(e) {
         createProjectTrackerManuallyEdited = (e.target.value || '').trim() !== createProjectLastAutoTrackerURL;
     });