fix: add is_pinned and pinned_weight to MicrodaoSummary model and API

services/city-service/models_city.py

@@ -450,6 +450,10 @@ class MicrodaoSummary(BaseModel):
     is_platform: bool = False  # Is a platform/district
     is_active: bool = True
     
+    # Pinning & ordering
+    is_pinned: bool = False  # Pinned to top of list
+    pinned_weight: int = 0  # Order within pinned items (1-N)
+    
     # Orchestrator
     orchestrator_agent_id: Optional[str] = None
     orchestrator_agent_name: Optional[str] = None

services/city-service/routes_city.py

@@ -2647,6 +2647,8 @@ async def get_microdaos(
                 is_public=dao.get("is_public", True),
                 is_platform=dao.get("is_platform", False),
                 is_active=dao.get("is_active", True),
+                is_pinned=dao.get("is_pinned", False),
+                pinned_weight=dao.get("pinned_weight", 0),
                 orchestrator_agent_id=dao.get("orchestrator_agent_id"),
                 orchestrator_agent_name=dao.get("orchestrator_agent_name"),
                 parent_microdao_id=dao.get("parent_microdao_id"),