Tighten the browser-based install flow after correctness and adversarial
review, without changing the external wizard shape.
- Persist the actual bind in server.listen, not the canonical URL
- Reject concurrent /install/finish and rapid GitHub App retries
- Keep the prior GitHub Token strategy until App callback succeeds
- Recover from poisoned install locks instead of propagating panics
- Rollback both settings and vault on failed persistence
- Redirect GitHub callback errors back into the wizard UI
- Validate LLM keys via /models probe instead of a billed generate()
- Reject canonical URLs with trailing slash, path, query, or fragment
- Accept any valid install-token source, not just the first present one
- Redact the install token in structured logs
- Assert install-mode SPA marker injection at startup
- Warn on suspected concurrent operators via UA + X-Forwarded-For
- Add component-level test for the GitHub callback error banner
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
Implement the web-first install experience across the server, CLI, API spec,
web app, and packaged SPA assets.
This also removes test-side process env mutation by pushing env-dependent
decision points behind explicit helpers and test wiring.
