feat(FN-007): add repository connection frontend UI

- Create RepositoryListPage with connection status display
- Create RepositoryDetailPage with SSH key management
- Add repository API methods to client
- Update router with repository routes
- Add Repository types to frontend

apps/web/src/router.tsx

@@ -12,7 +12,8 @@ import ToolsPage from './pages/ToolsPage'
 import ToolSpawnPage from './pages/ToolSpawnPage'
 import ToolInstanceDetailPage from './pages/ToolInstanceDetailPage'
 import SettingsPage from './pages/SettingsPage'
-import RepositoriesPage from './pages/RepositoriesPage'
+import RepositoryListPage from './pages/RepositoryListPage'
+import RepositoryDetailPage from './pages/RepositoryDetailPage'
 import ConfigListPage from './pages/ConfigListPage'
 import SecretListPage from './pages/SecretListPage'
 
@@ -37,7 +38,8 @@ export const router = createBrowserRouter([
           { path: '/tools/spawn', element: <ToolSpawnPage /> },
           { path: '/projects/:projectId/instances/:instanceId', element: <ToolInstanceDetailPage /> },
           { path: '/settings', element: <SettingsPage /> },
-          { path: '/repositories', element: <RepositoriesPage /> },
+          { path: '/repositories', element: <RepositoryListPage /> },
+          { path: '/projects/:projectId/repositories/:repoId', element: <RepositoryDetailPage /> },
           { path: '/projects/:id/configs', element: <ConfigListPage /> },
           { path: '/projects/:id/secrets', element: <SecretListPage /> },
         ],