feat(BE): add supplier_id filter to GetAll method and update validation for query parameters

internal/modules/master/nonstocks/services/nonstock.service.go

@@ -59,6 +59,14 @@ func (s nonstockService) GetAll(c *fiber.Ctx, params *validation.Query) ([]entit
 
 	nonstocks, total, err := s.Repository.GetAll(c.Context(), offset, params.Limit, func(db *gorm.DB) *gorm.DB {
 		db = s.withRelations(db)
+
+		if params.SupplierID != nil {
+			supplierID := *params.SupplierID
+			db = db.Joins("JOIN nonstock_suppliers ON nonstock_suppliers.nonstock_id = nonstocks.id").
+				Where("nonstock_suppliers.supplier_id = ?", supplierID).
+				Group("nonstocks.id") // Prevent duplicates from join
+		}
+
 		if params.Search != "" {
 			return db.Where("name LIKE ?", "%"+params.Search+"%")
 		}