fix(cli): resolve race conditions in test utils and streamline CI workflow

.github/workflows/ci-bundling-trial.yml

@@ -65,22 +65,4 @@ jobs:
         run: 'npx vitest run packages/cli'
         shell: 'bash'
 
-  test_integration:
-    name: 'Test (Linux) - Bundled Integration'
-    needs: 'build_bundle'
-    runs-on: 'gemini-cli-ubuntu-16-core'
-    steps:
-      - name: 'Checkout'
-        uses: 'actions/checkout@08c6903cd8c0fde910a37f88322edcfb5dd907a8'
 
-      - name: 'Setup with Bundle'
-        uses: './.github/actions/setup-gemini'
-        with:
-          mode: 'bundle'
-          bundle-artifact: 'gemini-bundle'
-
-      - name: 'Run Integration Tests'
-        env:
-          GEMINI_API_KEY: '${{ secrets.GEMINI_API_KEY }}'
-        run: 'npm run test:integration:sandbox:none'
-        shell: 'bash'