Bump version to 1.0.11

Machine status probe on page load:
- POST /api/machines/refresh probes all machines in parallel (max 20 concurrent, 1.5s timeout)
- Updates DB status and broadcasts via SSE to all connected browser tabs
- Server-side throttle: ignores refresh requests within 10s
- Machines.tsx and Dashboard.tsx fire probe on mount
- Visual "Checking machine status..." indicator in Machines table
- MachineHandler now accepts *Engine for ProbeAllMachines access

web/src/pages/Dashboard.tsx

@@ -32,6 +32,7 @@ export default function Dashboard() {
       })
       .catch(() => {})
       .finally(() => setLoading(false));
+    api('/api/machines/refresh', { method: 'POST' }).catch(() => {});
   }, []);
 
   useEffect(() => {