feat: add tests and implementation for issue discovery and queue pages

- Implemented `DiscoveryPage` with session management and findings display.
- Added tests for `DiscoveryPage` to ensure proper rendering and functionality.
- Created `QueuePage` for managing issue execution queues with stats and actions.
- Added tests for `QueuePage` to verify UI elements and translations.
- Introduced `useIssues` hooks for fetching and managing issue data.
- Added loading skeletons and error handling for better user experience.
- Created `vite-env.d.ts` for TypeScript support in Vite environment.

ccw/frontend/src/hooks/useIndex.ts

@@ -10,6 +10,7 @@ import {
   type IndexStatus,
   type IndexRebuildRequest,
 } from '../lib/api';
+import { useWorkflowStore, selectProjectPath } from '@/stores/workflowStore';
 
 // ========== Query Keys ==========
 
@@ -52,11 +53,14 @@ export function useIndexStatus(options: UseIndexStatusOptions = {}): UseIndexSta
   const { staleTime = STALE_TIME, enabled = true, refetchInterval = 0 } = options;
   const queryClient = useQueryClient();
 
+  const projectPath = useWorkflowStore(selectProjectPath);
+  const queryEnabled = enabled && !!projectPath;
+
   const query = useQuery({
     queryKey: indexKeys.status(),
-    queryFn: fetchIndexStatus,
+    queryFn: () => fetchIndexStatus(projectPath),
     staleTime,
-    enabled,
+    enabled: queryEnabled,
     refetchInterval: refetchInterval > 0 ? refetchInterval : false,
     retry: 2,
   });