Улучшения управления ценами и конфигурациями

- Добавлено отображение последней полученной цены в окне настройки цены
- Добавлен функционал переименования конфигураций (PATCH /api/configs/:uuid/rename)
- Изменён формат имени файла при экспорте: "YYYY-MM-DD NAME SPEC.ext"
- Исправлена сортировка компонентов: перенесена на сервер для корректной работы с пагинацией
- Добавлен расчёт popularity_score на основе котировок из lot_log
- Исправлена потеря настроек (метод, период, коэффициент) при пересчёте цен

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

internal/handlers/pricing.go

@@ -62,8 +62,10 @@ func (h *PricingHandler) ListComponents(c *gin.Context) {
 	perPage, _ := strconv.Atoi(c.DefaultQuery("per_page", "20"))
 
 	filter := repository.ComponentFilter{
-		Category: c.Query("category"),
-		Search:   c.Query("search"),
+		Category:  c.Query("category"),
+		Search:    c.Query("search"),
+		SortField: c.Query("sort"),
+		SortDir:   c.Query("dir"),
 	}
 
 	if page < 1 {
@@ -203,7 +205,6 @@ func (h *PricingHandler) recalculateSinglePrice(lotName string) {
 	}
 
 	periodDays := comp.PricePeriodDays
-	usedAllTime := false
 	var result struct {
 		Price *float64
 	}
@@ -213,13 +214,10 @@ func (h *PricingHandler) recalculateSinglePrice(lotName string) {
 		query := `SELECT AVG(price) as price FROM lot_log WHERE lot = ? AND date >= DATE_SUB(NOW(), INTERVAL ? DAY)`
 		h.db.Raw(query, lotName, periodDays).Scan(&result)
 
-		// If no prices found in period, fall back to all time
+		// If no prices found in period, fall back to all time but keep user's period setting
 		if result.Price == nil || *result.Price <= 0 {
 			query = `SELECT AVG(price) as price FROM lot_log WHERE lot = ?`
 			h.db.Raw(query, lotName).Scan(&result)
-			if result.Price != nil && *result.Price > 0 {
-				usedAllTime = true
-			}
 		}
 	} else {
 		query := `SELECT AVG(price) as price FROM lot_log WHERE lot = ?`
@@ -236,19 +234,13 @@ func (h *PricingHandler) recalculateSinglePrice(lotName string) {
 	}
 
 	now := time.Now()
-	updates := map[string]interface{}{
-		"current_price":    finalPrice,
-		"price_updated_at": now,
-	}
-
-	// If we fell back to all time, update the period setting
-	if usedAllTime {
-		updates["price_period_days"] = 0
-	}
-
+	// Only update price, preserve all user settings
 	h.db.Model(&models.LotMetadata{}).
 		Where("lot_name = ?", lotName).
-		Updates(updates)
+		Updates(map[string]interface{}{
+			"current_price":    finalPrice,
+			"price_updated_at": now,
+		})
 }
 
 func (h *PricingHandler) RecalculateAll(c *gin.Context) {
@@ -339,22 +331,20 @@ func (h *PricingHandler) RecalculateAll(c *gin.Context) {
 				continue
 			}
 
-			// Determine which price to use
+			// Determine which price to use based on component settings
 			var finalPrice float64
-			usedAllTime := false
 			periodDays := comp.PricePeriodDays
 
 			if periodDays <= 0 {
-				// Already using all time
+				// Use all time
 				finalPrice = *priceData.AvgPrice
 			} else {
 				// Try period price first (using 90-day as proxy)
 				if priceData.AvgPrice90 != nil && *priceData.AvgPrice90 > 0 {
 					finalPrice = *priceData.AvgPrice90
 				} else {
-					// Fall back to all time
+					// Fall back to all time if no data in period, but keep user's period setting
 					finalPrice = *priceData.AvgPrice
-					usedAllTime = true
 				}
 			}
 
@@ -363,15 +353,12 @@ func (h *PricingHandler) RecalculateAll(c *gin.Context) {
 				finalPrice = finalPrice * (1 + comp.PriceCoefficient/100)
 			}
 
+			// Only update current_price and price_updated_at, preserve all other settings
 			updates := map[string]interface{}{
 				"current_price":    finalPrice,
 				"price_updated_at": now,
 			}
 
-			if usedAllTime {
-				updates["price_period_days"] = 0
-			}
-
 			err := tx.Model(&models.LotMetadata{}).
 				Where("lot_name = ?", comp.LotName).
 				Updates(updates).Error
@@ -400,6 +387,9 @@ func (h *PricingHandler) RecalculateAll(c *gin.Context) {
 		c.Writer.Flush()
 	}
 
+	// Update popularity scores
+	h.statsRepo.UpdatePopularityScores()
+
 	// Send completion
 	c.SSEvent("progress", gin.H{
 		"current": updated + skipped + manual + errors,
@@ -514,6 +504,13 @@ func (h *PricingHandler) PreviewPrice(c *gin.Context) {
 	var quoteCount int64
 	h.db.Model(&models.LotLog{}).Where("lot = ?", req.LotName).Count(&quoteCount)
 
+	// Get last received price
+	var lastPrice struct {
+		Price *float64
+		Date  *time.Time
+	}
+	h.db.Raw(`SELECT price, date FROM lot_log WHERE lot = ? ORDER BY date DESC, lot_log_id DESC LIMIT 1`, req.LotName).Scan(&lastPrice)
+
 	// Calculate new price based on parameters
 	var basePrice *float64
 	if req.PeriodDays > 0 {
@@ -542,5 +539,7 @@ func (h *PricingHandler) PreviewPrice(c *gin.Context) {
 		"new_price":       newPrice,
 		"quote_count":     quoteCount,
 		"manual_price":    comp.ManualPrice,
+		"last_price":      lastPrice.Price,
+		"last_price_date": lastPrice.Date,
 	})
 }