- Move test_verify.py and test-content-script.js to tests/
- Remove unused test_start_extension.sh
- Rename Dockerfile stages: test → code_quality, verify → integration_test
- Simplify test to single assertion: 17*2+3=37
- Add red TTY output for failures
- Fix runtime stage to properly copy built artifacts
🤖 Generated with [Claude Code](https://claude.com/claude-code)
Co-Authored-By: Claude <noreply@anthropic.com>
