feat(BE): refactor search queries to be case insensitive across all modules

internal/modules/inventory/product-warehouses/repositories/product_warehouse.repository.go

@@ -399,11 +399,11 @@ func (r *ProductWarehouseRepositoryImpl) ListProductIDsByFlagPrefixes(ctx contex
 		}
 		like := prefix + "%"
 		if !applied {
-			db = db.Where("flags.name LIKE ?", like)
+			db = db.Where("LOWER(flags.name) LIKE LOWER(?)", like)
 			applied = true
 			continue
 		}
-		db = db.Or("flags.name LIKE ?", like)
+		db = db.Or("LOWER(flags.name) LIKE LOWER(?)", like)
 	}
 
 	if visibleStatus != nil {

internal/modules/inventory/transfers/services/transfer.service.go

@@ -99,7 +99,7 @@ func (s transferService) GetAll(c *fiber.Ctx, params *validation.Query) ([]entit
 	transfers, total, err := s.StockTransferRepo.GetAll(c.Context(), offset, params.Limit, func(db *gorm.DB) *gorm.DB {
 		db = s.withRelations(db)
 		if params.Search != "" {
-			db = db.Where("movement_number LIKE ?", "%"+strings.TrimSpace(params.Search)+"%")
+			db = db.Where("LOWER(movement_number) LIKE LOWER(?)", "%"+strings.TrimSpace(params.Search)+"%")
 		}
 		return db.Order("created_at DESC").Order("updated_at DESC")
 	})