fix: add avatar_url to AgentProfile for dashboard

apps/web/src/lib/agent-dashboard.ts

@@ -75,6 +75,7 @@ export interface AgentProfile {
   agent_id: string;
   display_name: string;
   kind: string;
+  avatar_url?: string;
   status: 'online' | 'offline' | 'degraded' | 'training' | 'maintenance';
   node_id?: string;
   roles: string[];

services/city-service/routes_city.py

@@ -1127,6 +1127,7 @@ async def get_agent_dashboard(agent_id: str):
             "agent_id": agent["id"],
             "display_name": agent["display_name"],
             "kind": agent.get("kind", "assistant"),
+            "avatar_url": agent.get("avatar_url"),  # Add top-level avatar_url
             "status": agent.get("status", "offline"),
             "node_id": agent.get("node_id"),
             "roles": [agent.get("role")] if agent.get("role") else [],