fix(legacy): resolve 422 error on site domain lookup and enhance V3 filtering

app/routers/api_crud.py

@@ -699,8 +699,28 @@ async def get_obj_l2(
         # exclude: Optional[list] = [],
         # exclude_none: Optional[bool] = True,
 
-        commons: Common_Route_Params = Depends(common_route_params),
+        commons: Common_Route_Params = Depends(common_route_params_min),
         ):
+    # ### SECTION ### Special Case: site/domain lookup by FQDN
+    if obj_type_l1 == 'site' and obj_type_l2 == 'domain':
+        log.info(f'Special Case: Site Domain lookup by FQDN: {obj_id}')
+        
+        table_name = 'v_site_domain_fqdn_id' if use_alt_table else 'v_site_domain'
+        base_name = Site_Domain_FQDN_ID_Base if use_alt_base else Site_Domain_Base
+        
+        sql_result = sql_select(
+            table_name=table_name,
+            field_name='fqdn',
+            field_value=obj_id,
+            as_list=False
+        )
+        
+        if sql_result:
+            resp_data = base_name(**sql_result).dict(by_alias=commons.by_alias, exclude_unset=commons.exclude_unset)
+            return mk_resp(data=resp_data, response=commons.response)
+        else:
+            return mk_resp(data=False, status_code=404, response=commons.response)
+
     # ### SECTION ### Call generic function to get the object
     return handle_get_obj_id(
         obj_type_l1=obj_type_l1,