refactor: удалить мёртвые таблицы qt_price_overrides, qt_pricing_alerts, qt_component_usage_stats

Удалены модели, репозитории и авто-миграции для трёх таблиц, которые
никогда не использовались в продакшн-коде. Убраны StatsRepository и
RecordUsage из сервисов, сигнатуры конструкторов упрощены.

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

internal/services/component.go

@@ -12,18 +12,15 @@ import (
 type ComponentService struct {
 	componentRepo *repository.ComponentRepository
 	categoryRepo  *repository.CategoryRepository
-	statsRepo     *repository.StatsRepository
 }
 
 func NewComponentService(
 	componentRepo *repository.ComponentRepository,
 	categoryRepo *repository.CategoryRepository,
-	statsRepo *repository.StatsRepository,
 ) *ComponentService {
 	return &ComponentService{
 		componentRepo: componentRepo,
 		categoryRepo:  categoryRepo,
-		statsRepo:     statsRepo,
 	}
 }
 

internal/services/configuration.go

@@ -2,7 +2,6 @@ package services
 
 import (
 	"errors"
-	"log/slog"
 	"time"
 
 	"git.mchus.pro/mchus/quoteforge/internal/models"
@@ -118,11 +117,6 @@ func (s *ConfigurationService) Create(ownerUsername string, req *CreateConfigReq
 		return nil, err
 	}
 
-	// Record usage stats (best-effort)
-	if err := s.quoteService.RecordUsage(req.Items); err != nil {
-		slog.Warn("configuration: could not record usage stats", "err", err)
-	}
-
 	return config, nil
 }
 

internal/services/local_configuration.go

@@ -119,11 +119,6 @@ func (s *LocalConfigurationService) Create(ownerUsername string, req *CreateConf
 	}
 	cfg.Line = localCfg.Line
 
-	// Record usage stats (best-effort)
-	if err := s.quoteService.RecordUsage(req.Items); err != nil {
-		slog.Warn("local configuration: could not record usage stats", "err", err)
-	}
-
 	return cfg, nil
 }
 

internal/services/quote.go

@@ -19,7 +19,6 @@ var (
 
 type QuoteService struct {
 	componentRepo  *repository.ComponentRepository
-	statsRepo      *repository.StatsRepository
 	pricelistRepo  *repository.PricelistRepository
 	localDB        *localdb.LocalDB
 	pricingService priceResolver
@@ -34,14 +33,12 @@ type priceResolver interface {
 
 func NewQuoteService(
 	componentRepo *repository.ComponentRepository,
-	statsRepo *repository.StatsRepository,
 	pricelistRepo *repository.PricelistRepository,
 	localDB *localdb.LocalDB,
 	pricingService priceResolver,
 ) *QuoteService {
 	return &QuoteService{
 		componentRepo:  componentRepo,
-		statsRepo:      statsRepo,
 		pricelistRepo:  pricelistRepo,
 		localDB:        localDB,
 		pricingService: pricingService,
@@ -504,18 +501,3 @@ func (s *QuoteService) lookupPriceByPricelistID(pricelistID uint, lotName string
 	return 0, false
 }
 
-// RecordUsage records that components were used in a quote
-func (s *QuoteService) RecordUsage(items []models.ConfigItem) error {
-	if s.statsRepo == nil {
-		// Offline mode: usage stats are unavailable and should not block config saves.
-		return nil
-	}
-
-	for _, item := range items {
-		revenue := item.UnitPrice * float64(item.Quantity)
-		if err := s.statsRepo.IncrementUsage(item.LotName, item.Quantity, revenue); err != nil {
-			return err
-		}
-	}
-	return nil
-}

internal/services/quote_price_levels_test.go

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