Add /ide status & /ide install commands to manage IDE integration (#4265)

packages/cli/src/ui/App.test.tsx

@@ -135,6 +135,7 @@ vi.mock('@google/gemini-cli-core', async (importOriginal) => {
         setFlashFallbackHandler: vi.fn(),
         getSessionId: vi.fn(() => 'test-session-id'),
         getUserTier: vi.fn().mockResolvedValue(undefined),
+        getIdeMode: vi.fn(() => false),
       };
     });
   return {