Bump version to 1.0.10

Smart WoL: TCP pre-check before sending magic packet (3s timeout).
Machine status updates via SSE: online/offline tracked in DB and
broadcast to all connected browser tabs in real-time.
- Pre-check: if machine already reachable, skip WoL and mark online
- WoL path: send 3 magic packets, wait for SSH, mark online/offline
- Backend: setMachineStatus() helper + machine_status SSE event
- Frontend: subscribeMachineStatus() SSE helper for Machines + Dashboard
- IsReachable() helper in wol package for TCP reachability checks

web/src/pages/Dashboard.tsx

@@ -11,6 +11,7 @@ import { EmptyState } from '@/components/ui/EmptyState';
 import { Skeleton } from '@/components/ui/Skeleton';
 import { statusVariant, statusLabel } from '@/lib/status';
 import { formatRelativeTime } from '@/lib/utils';
+import { subscribeMachineStatus } from '@/lib/sse';
 
 export default function Dashboard() {
   const [machines, setMachines] = useState<Machine[]>([]);
@@ -33,6 +34,17 @@ export default function Dashboard() {
       .finally(() => setLoading(false));
   }, []);
 
+  useEffect(() => {
+    const unsub = subscribeMachineStatus((evt) => {
+      setMachines((prev) =>
+        prev.map((m) =>
+          m.id === evt.machine_id ? { ...m, status: evt.status } : m
+        )
+      );
+    });
+    return unsub;
+  }, []);
+
   const pairName = (id: number) => pairs.find(p => p.id === id)?.name ?? `Pair ${id}`;
 
   const online = machines.filter(m => m.status.startsWith('online')).length;