fix(logs): stop build-log polling once build finishes

The build-logs tab kept polling every 5s and showing the auto-refresh
indicator even after the build reached a terminal state. Gate both on
the build still being in progress, and label a completed build as
"done" instead of the misleading "running" status.

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>

frontend/src/components/workload-logs-panel.tsx

@@ -50,6 +50,11 @@ export function WorkloadLogsPanel({
     refetchInterval: showLogs && logTab === 'pod' ? 3000 : false,
   });
 
+  // Only keep polling while a build is still in progress; once it reaches a
+  // terminal state (running/failed/cancelled/…) the log is final, so stop.
+  const buildInProgress = (status?: string) =>
+    !status || status === 'pending' || status === 'building' || status === 'deploying';
+
   const { data: buildLogsData } = useQuery<{
     buildLog: string | null;
     status: string;
@@ -58,9 +63,14 @@ export function WorkloadLogsPanel({
     queryKey: ['build-logs', appId],
     queryFn: () => api.get(`/deployments/applications/${appId}/build-logs`).then((r) => r.data),
     enabled: showBuildLogs && showLogs && logTab === 'build',
-    refetchInterval: showBuildLogs && showLogs && logTab === 'build' ? 5000 : false,
+    refetchInterval: (query) =>
+      showBuildLogs && showLogs && logTab === 'build' && buildInProgress(query.state.data?.status)
+        ? 5000
+        : false,
   });
 
+  const buildIsLive = showBuildLogs && showLogs && logTab === 'build' && buildInProgress(buildLogsData?.status);
+
   const podPlaceholder =
     emptyPodMessage ||
     (isRunning
@@ -82,7 +92,7 @@ export function WorkloadLogsPanel({
               <span>{wl.liveEvery3s}</span>
             </span>
           )}
-          {showBuildLogs && showLogs && logTab === 'build' && (
+          {buildIsLive && (
             <span className="text-xs text-gray-400 flex items-center space-x-1 rtl:space-x-reverse">
               <span className="w-2 h-2 bg-blue-500 rounded-full animate-pulse" />
               <span>{wl.autoEvery5s}</span>
@@ -147,7 +157,7 @@ export function WorkloadLogsPanel({
                     <Pin className="w-3 h-3 inline" /> {buildLogsData.version}
                   </span>
                   <span className={`badge ${statusColors[buildLogsData.status] || 'badge-gray'}`}>
-                    {statusLabel(buildLogsData.status)}
+                    {buildLogsData.status === 'running' ? wl.buildDone : statusLabel(buildLogsData.status)}
                   </span>
                 </div>
               )}