Merge pull request 'fix/trailers' (#387) from fix/trailers into development

Reviewed-on: ADUANASOFT/anexo76#387

backend/api/v1/modules/public/reference_data/states/routes.py

@@ -22,12 +22,16 @@ async def list_states(
     page: int = Query(1, ge=1, description="Número de página"),
     page_size: int = Query(50, ge=1, le=100, description="Tamaño de página"),
     search: str = Query(None, description="Término de búsqueda"),
+    country_id: str = Query(None, description="Filtrar por país (m3_key)"),
     db: Session = Depends(get_core_db),
     current_user: dict = Depends(get_current_user),
 ):
     skip = (page - 1) * page_size
     query = db.query(State)
     
+    if country_id:
+        query = query.filter(State.m3_key == country_id)
+
     if search:
         search_filter = f"%{search}%"
         query = query.filter(