feat: implement Swapper metrics collection and UI

scripts/node-guardian-loop.py

@@ -181,10 +181,49 @@ class NodeGuardian:
             return {"error": str(e)}
     
     async def collect_metrics(self) -> Dict[str, Any]:
-        """Зібрати метрики ноди (базова реалізація)"""
-        # TODO: Implement real metrics collection
-        # For now, return empty metrics
-        return {}
+        """Зібрати метрики ноди та Swapper"""
+        metrics = {
+            "cpu_usage": 0.0, # TODO: Implement real metrics
+            "gpu_vram_used": 0,
+            "ram_used": 0,
+            "disk_used": 0,
+            "agent_count_router": 0,
+            "agent_count_system": 0,
+            "dagi_router_url": "http://dagi-router:9102",
+            # Swapper defaults
+            "swapper_healthy": False,
+            "swapper_models_loaded": 0,
+            "swapper_models_total": 0,
+            "swapper_state": {}
+        }
+        
+        # Collect Swapper Metrics
+        swapper_url = os.getenv("SWAPPER_URL", "http://swapper-service:8890")
+        try:
+            # Check healthz
+            try:
+                r = await self.client.get(f"{swapper_url}/healthz", timeout=3.0)
+                metrics["swapper_healthy"] = (r.status_code == 200)
+            except Exception:
+                metrics["swapper_healthy"] = False
+            
+            # Check models
+            try:
+                r = await self.client.get(f"{swapper_url}/v1/models", timeout=5.0)
+                if r.status_code == 200:
+                    data = r.json()
+                    models = data.get("models", [])
+                    metrics["swapper_models_total"] = len(models)
+                    metrics["swapper_models_loaded"] = sum(1 for m in models if m.get("loaded") is True)
+                    metrics["swapper_state"] = data
+            except Exception as e:
+                logger.warning(f"Failed to fetch Swapper models: {e}")
+                pass
+                
+        except Exception as e:
+            logger.warning(f"Swapper metrics collection failed: {e}")
+            
+        return metrics
     
     async def run_health_check(self) -> Dict[str, Any]:
         """