category va subcategory dropdownlariga filial nomi, search va filial filter qo'shildi

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

core/apps/api/models/category.py

@@ -73,7 +73,8 @@ class SubcategoryModel(AbstractBaseModel):
     image = models.ImageField(verbose_name=_("image"), upload_to="subcategories/", null=True, blank=True)
 
     def __str__(self):
-        return f"{self.category.name} -> {self.name}"
+        filial_name = self.category.filial.name if self.category.filial else "Filial yo'q"
+        return f"{self.category.name} -> {self.name} ({filial_name})"
 
     @classmethod
     def _baker(cls):