fix: guard VRAM division by zero in Dashboard and Models pages

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

Author: yasinBursali

dream-server/extensions/services/dashboard-api/routers/voice.py

@@ -29,6 +29,7 @@ async def voice_status(api_key: str = Depends(verify_api_key)):
                 result = await check_service_health(svc_key, cfg)
                 services_status[display_name] = {"status": result.status}
             except Exception:
+                logger.warning("Health check failed for %s", svc_key)
                 services_status[display_name] = {"status": "unavailable"}
         else:
             services_status[display_name] = {"status": "not_configured"}
@@ -40,6 +41,7 @@ async def voice_status(api_key: str = Depends(verify_api_key)):
             result = await check_service_health("livekit", livekit_cfg)
             services_status["livekit"] = {"status": result.status}
         except Exception:
+            logger.warning("Health check failed for livekit")
             services_status["livekit"] = {"status": "unavailable"}
     else:
         services_status["livekit"] = {"status": "not_configured"}

dream-server/extensions/services/dashboard/src/pages/Dashboard.jsx

@@ -263,7 +263,7 @@ export default function Dashboard({ status, loading }) {
         label: 'VRAM',
         value: `${status.gpu.vramUsed.toFixed(1)} GB`,
         subvalue: `of ${status.gpu.vramTotal} GB`,
-        percent: (status.gpu.vramUsed / status.gpu.vramTotal) * 100,
+        percent: status.gpu.vramTotal > 0 ? (status.gpu.vramUsed / status.gpu.vramTotal) * 100 : 0,
       })
     }
   }

dream-server/extensions/services/dashboard/src/pages/Models.jsx

@@ -69,10 +69,10 @@ export default function Models() {
           <div className="h-2 bg-theme-border rounded-full overflow-hidden">
             <div 
               className={`h-full rounded-full transition-all ${
-                (gpu.vramUsed / gpu.vramTotal) > 0.9 ? 'bg-red-500' :
-                (gpu.vramUsed / gpu.vramTotal) > 0.7 ? 'bg-yellow-500' : 'bg-theme-accent'
+                (gpu.vramTotal > 0 ? gpu.vramUsed / gpu.vramTotal : 0) > 0.9 ? 'bg-red-500' :
+                (gpu.vramTotal > 0 ? gpu.vramUsed / gpu.vramTotal : 0) > 0.7 ? 'bg-yellow-500' : 'bg-theme-accent'
               }`}
-              style={{ width: `${(gpu.vramUsed / gpu.vramTotal) * 100}%` }} 
+              style={{ width: `${gpu.vramTotal > 0 ? (gpu.vramUsed / gpu.vramTotal) * 100 : 0}%` }} 
             />
           </div>
           <p className="text-xs text-theme-text-muted mt-2">