feat: add swapper api proxy and improved card

apps/web/src/app/api/internal/node/[nodeId]/swapper/route.ts

@@ -0,0 +1,44 @@
+import { NextResponse } from 'next/server';
+
+const CITY_SERVICE_URL =
+  process.env.INTERNAL_API_URL ||
+  process.env.CITY_SERVICE_URL ||
+  'http://daarion-city-service:7001';
+
+export async function GET(
+  _request: Request,
+  { params }: { params: { nodeId: string } }
+) {
+  const nodeId = params?.nodeId;
+
+  if (!nodeId) {
+    return NextResponse.json(
+      { error: 'nodeId is required' },
+      { status: 400 }
+    );
+  }
+
+  try {
+    const upstream = await fetch(
+      `${CITY_SERVICE_URL}/city/internal/node/${encodeURIComponent(nodeId)}/swapper`,
+      {
+        cache: 'no-store',
+        headers: {
+          'content-type': 'application/json',
+        },
+      }
+    );
+
+    const payload = await upstream.json();
+    return NextResponse.json(payload, { status: upstream.status });
+  } catch (error) {
+    return NextResponse.json(
+      {
+        error: 'Failed to fetch swapper data',
+        details: error instanceof Error ? error.message : String(error),
+      },
+      { status: 500 }
+    );
+  }
+}
+

apps/web/src/components/node-dashboard/NodeSwapperCard.tsx

@@ -10,6 +10,13 @@ interface NodeSwapperCardProps {
 export function NodeSwapperCard({ nodeId }: NodeSwapperCardProps) {
   const { swapper, isLoading, error, mutate } = useNodeSwapper(nodeId);
   const [isExpanded, setIsExpanded] = useState(false);
+  const hasData = Boolean(swapper);
+  const summary = swapper ?? {
+    healthy: false,
+    models_loaded: 0,
+    models_total: 0,
+    models: [],
+  };
 
   if (isLoading) {
     return (
@@ -35,8 +42,6 @@ export function NodeSwapperCard({ nodeId }: NodeSwapperCardProps) {
     );
   }
 
-  if (!swapper) return null;
-
   return (
     <div className="bg-white/5 backdrop-blur-md rounded-2xl border border-white/10 p-6">
       <div className="flex items-center justify-between mb-4">
@@ -60,19 +65,19 @@ export function NodeSwapperCard({ nodeId }: NodeSwapperCardProps) {
           <div className="flex items-center justify-between mb-2">
             <span className="text-white/50 text-sm">Status</span>
             <div className={`flex items-center gap-2 px-2 py-1 rounded-full text-xs font-medium ${
-              swapper.healthy ? 'bg-green-500/20 text-green-400' : 'bg-red-500/20 text-red-400'
+              summary.healthy ? 'bg-green-500/20 text-green-400' : 'bg-yellow-500/20 text-yellow-300'
             }`}>
               <span className={`w-1.5 h-1.5 rounded-full ${
-                swapper.healthy ? 'bg-green-400' : 'bg-red-400'
+                summary.healthy ? 'bg-green-400' : 'bg-yellow-300'
               }`} />
-              {swapper.healthy ? 'Healthy' : 'Unhealthy'}
+              {summary.healthy ? 'Healthy' : hasData ? 'Degraded' : 'Pending data'}
             </div>
           </div>
           
           <div className="flex items-center justify-between">
             <span className="text-white/50 text-sm">Models Loaded</span>
             <span className="text-white font-mono">
-              {swapper.models_loaded} <span className="text-white/30">/ {swapper.models_total}</span>
+              {summary.models_loaded} <span className="text-white/30">/ {summary.models_total}</span>
             </span>
           </div>
         </div>
@@ -87,12 +92,12 @@ export function NodeSwapperCard({ nodeId }: NodeSwapperCardProps) {
         </button>
 
         {/* Models List */}
-        {isExpanded && (
+        {isExpanded && hasData && (
           <div className="space-y-2 mt-2">
-            {swapper.models.length === 0 ? (
+            {summary.models.length === 0 ? (
               <p className="text-center text-white/30 text-sm py-2">No models found</p>
             ) : (
-              swapper.models.map((model, idx) => (
+              summary.models.map((model, idx) => (
                 <div 
                   key={`${model.name}-${idx}`}
                   className="flex items-center justify-between p-3 rounded-lg bg-white/5 border border-white/5"
@@ -119,6 +124,12 @@ export function NodeSwapperCard({ nodeId }: NodeSwapperCardProps) {
             )}
           </div>
         )}
+
+        {!hasData && !error && (
+          <div className="mt-3 text-xs text-white/40 bg-white/5 rounded-lg p-3 border border-white/5">
+            Дані Swapper ще не надійшли. Як тільки node-guardian оновить heartbeat, тут з’являться моделі.
+          </div>
+        )}
       </div>
     </div>
   );

apps/web/src/hooks/useNodeSwapper.ts

@@ -15,11 +15,18 @@ export interface NodeSwapperDetail {
   models: SwapperModel[];
 }
 
-const fetcher = (url: string) => fetch(url).then((res) => res.json());
+async function fetcher(url: string) {
+  const res = await fetch(url, { cache: 'no-store' });
+  if (!res.ok) {
+    const error = await res.json().catch(() => ({}));
+    throw new Error(error?.error || 'Failed to load swapper data');
+  }
+  return res.json();
+}
 
 export function useNodeSwapper(nodeId: string) {
   const { data, error, isLoading, mutate } = useSWR<NodeSwapperDetail>(
-    nodeId ? `/api/v1/internal/node/${nodeId}/swapper` : null,
+    nodeId ? `/api/internal/node/${nodeId}/swapper` : null,
     fetcher
   );