feat: add GPU failure monitoring and Rocket.Chat alerts to client telemetry processing

central_api_prototype.py

@@ -354,8 +354,33 @@ async def receive_telemetry(client_id: str, payload: TelemetryPayload):
 
     if storage_modified:
         clients[client_id]["active_storage_alerts"] = storage_alerts
+
+    # GPU Failure Monitor
+    gpu_alert_sent = clients[client_id].get("gpu_alert_sent", False)
+    gpu_modified = False
+
+    if len(payload.gpus) == 0:
+        if not gpu_alert_sent:
+            gpu_alert_sent = True
+            gpu_modified = True
+            send_rocketchat_notification(
+                text=f"🚨 **GPU Failure:** Client `{client_id}` is not reporting any GPU data! (nvidia-smi has failed or is missing)",
+                color="#e74c3c"
+            )
+    else:
+        if gpu_alert_sent:
+            gpu_alert_sent = False
+            gpu_modified = True
+            send_rocketchat_notification(
+                text=f"✅ **GPU Recovered:** Client `{client_id}` is reporting GPU data successfully again.",
+                color="#2ecc71"
+            )
+
+    if gpu_modified:
+        clients[client_id]["gpu_alert_sent"] = gpu_alert_sent
         
-    save_clients(clients)
+    if storage_modified or gpu_modified:
+        save_clients(clients)
 
     data = payload.dict()
     client_telemetry[client_id] = data