fix: reliable cloud sync and connection pooling for Render live dashboard

fiveparaminte-main/main.py

@@ -11,7 +11,7 @@ import uvicorn
 from config import settings
 from database import engine, Base
 from contec_server import handle_contec_client
-from background_tasks import retry_failed_transmissions
+from background_tasks import retry_failed_transmissions, sync_cloud_state
 from routers import dashboard
 from routers.dashboard import get_ws_manager
 
@@ -138,8 +138,9 @@ async def lifespan(app: FastAPI):
     print(f"  Set Server IP = one of the IPs above, Port = {settings.contec_ports[0] if settings.contec_ports else 511}")
     print("=" * 65 + "\n")
     
-    # Startup: Start the background retry task
+    # Startup: Start background retry and cloud state sync tasks
     retry_task = asyncio.create_task(retry_failed_transmissions())
+    cloud_sync_task = asyncio.create_task(sync_cloud_state())
     
     # Startup: Start bore tunnel for remote monitors if available and not already running
     bore_proc = None
@@ -170,6 +171,7 @@ async def lifespan(app: FastAPI):
         except Exception:
             pass
     retry_task.cancel()
+    cloud_sync_task.cancel()
     for server in servers:
         server.close()
     for server in servers: