feat: Add MicroDAO Dashboard with activity feed and statistics

- Add microdao_activity table for news/updates/events
- Add statistics columns to microdaos table
- Implement dashboard API endpoints
- Create UI components (HeaderCard, ActivitySection, TeamSection)
- Add seed data for DAARION DAO
- Update backend models and repositories
- Add frontend types and API client

services/city-service/routes_city.py

@@ -4792,12 +4792,47 @@ async def trigger_node_self_healing(node_id: str):
 async def api_get_microdao_dashboard(slug: str):
     """Отримати повний дашборд для MicroDAO"""
     try:
-        dashboard = await repo_city.get_microdao_dashboard(slug)
+        dashboard_dict = await repo_city.get_microdao_dashboard(slug)
+        
+        # Конвертувати dict в Pydantic моделі
+        # MicrodaoSummary вже правильно сформований
+        # Stats потрібно конвертувати
+        stats = dashboard_dict["stats"]
+        if stats.get("last_update_at"):
+            try:
+                if isinstance(stats["last_update_at"], str):
+                    stats["last_update_at"] = datetime.fromisoformat(stats["last_update_at"].replace("Z", "+00:00"))
+                elif hasattr(stats["last_update_at"], "isoformat"):
+                    pass  # Вже datetime
+            except Exception:
+                stats["last_update_at"] = None
+        
+        # Activity потрібно конвертувати
+        activity_list = []
+        for act in dashboard_dict["recent_activity"]:
+            act_dict = dict(act)
+            if act_dict.get("created_at"):
+                try:
+                    if isinstance(act_dict["created_at"], str):
+                        act_dict["created_at"] = datetime.fromisoformat(act_dict["created_at"].replace("Z", "+00:00"))
+                except Exception:
+                    pass
+            activity_list.append(MicrodaoActivity(**act_dict))
+        
+        # Створити повний об'єкт
+        dashboard = MicrodaoDashboard(
+            microdao=MicrodaoSummary(**dashboard_dict["microdao"]),
+            stats=MicrodaoStats(**stats),
+            recent_activity=activity_list,
+            rooms=[CityRoomSummary(**r) for r in dashboard_dict["rooms"]],
+            citizens=[PublicCitizenSummary(**c) for c in dashboard_dict["citizens"]]
+        )
+        
         return dashboard
     except ValueError as e:
         raise HTTPException(status_code=404, detail=str(e))
     except Exception as e:
-        logger.error(f"Failed to get microdao dashboard for {slug}: {e}")
+        logger.error(f"Failed to get microdao dashboard for {slug}: {e}", exc_info=True)
         raise HTTPException(status_code=500, detail="Failed to load dashboard")