fix: keep one goosed client per BrowswerWindow (#4805)

ui/desktop/src/App.test.tsx

@@ -37,7 +37,7 @@ vi.mock('./utils/costDatabase', () => ({
   initializeCostDatabase: vi.fn().mockResolvedValue(undefined),
 }));
 
-vi.mock('./api/sdk.gen', () => {
+vi.mock('./api', () => {
   const test_chat = {
     data: {
       session_id: 'test',
@@ -303,7 +303,7 @@ describe('App Component - Brand New State', () => {
 
   it('should handle config recovery gracefully', async () => {
     // Mock config error that triggers recovery
-    const { readAllConfig, recoverConfig } = await import('./api/sdk.gen');
+    const { readAllConfig, recoverConfig } = await import('./api');
     console.log(recoverConfig);
     vi.mocked(readAllConfig).mockRejectedValueOnce(new Error('Config read error'));