fix recording standar prod laying

internal/utils/recording/recording_helpers.go

@@ -205,6 +205,7 @@ func AttachProductionStandards(ctx context.Context, db *gorm.DB, warnOnly bool,
 
 	standardDetailByStd := make(map[uint]map[int]*entity.ProductionStandardDetail, len(standardIDs))
 	growthDetailByStd := make(map[uint]map[int]*entity.StandardGrowthDetail, len(standardIDs))
+	firstCommonWeekByStd := make(map[uint]int, len(standardIDs))
 
 	for standardID := range standardIDs {
 		details, err := standardDetailRepo.GetByProductionStandardID(ctx, standardID)
@@ -242,6 +243,10 @@ func AttachProductionStandards(ctx context.Context, db *gorm.DB, warnOnly bool,
 			growthMap[growth.Week] = &growth
 		}
 		growthDetailByStd[standardID] = growthMap
+
+		if firstCommonWeek, ok := firstCommonStandardWeek(detailMap, growthMap); ok {
+			firstCommonWeekByStd[standardID] = firstCommonWeek
+		}
 	}
 
 	// Batch-load laying transfer targets → EARLIEST source PFK chick_in_date per target.
@@ -284,6 +289,9 @@ func AttachProductionStandards(ctx context.Context, db *gorm.DB, warnOnly bool,
 			continue
 		}
 		week := computeTransferAwareWeek(item, sourceChickInByTarget)
+		if firstCommonWeek, ok := firstCommonWeekByStd[standardID]; ok {
+			week = effectiveProductionStandardWeek(item, week, firstCommonWeek)
+		}
 		item.StandardWeek = &week
 		cacheKey := standardKey{standardID: standardID, week: week}
 		if cached, ok := cache[cacheKey]; ok {
@@ -324,6 +332,38 @@ func applyProductionStandardValues(item *entity.Recording, values productionStan
 	item.StandardFcr = fcr
 }
 
+func firstCommonStandardWeek(
+	detailMap map[int]*entity.ProductionStandardDetail,
+	growthMap map[int]*entity.StandardGrowthDetail,
+) (int, bool) {
+	firstWeek := 0
+	for week := range detailMap {
+		if week <= 0 {
+			continue
+		}
+		if _, ok := growthMap[week]; !ok {
+			continue
+		}
+		if firstWeek == 0 || week < firstWeek {
+			firstWeek = week
+		}
+	}
+	return firstWeek, firstWeek > 0
+}
+
+func effectiveProductionStandardWeek(item *entity.Recording, actualWeek int, firstCommonWeek int) int {
+	if item == nil || actualWeek <= 0 || firstCommonWeek <= 0 {
+		return actualWeek
+	}
+	if !IsLayingRecording(*item) {
+		return actualWeek
+	}
+	if actualWeek < firstCommonWeek {
+		return firstCommonWeek
+	}
+	return actualWeek
+}
+
 // collectLayingPFKIDs mengumpulkan semua project_flock_kandang_id dari recording laying
 func collectLayingPFKIDs(items []*entity.Recording) []uint {
 	seen := make(map[uint]struct{})