This commit introduces a release update mechanism, including candidate detection, asset pre-downloading, and installation workflows with proper state management. Additionally, it implements API health checks both for successful and failure scenarios and adds related unit and e2e tests for enhanced reliability.
- Add tests for shell bridge to validate structured error reporting on spawn failures.
- Add broker tests to ensure proper rejection of malformed browser shell upgrades without leaking sensitive tokens.
- Update `.env.example` with `EDGE_PUBLIC_BROKER_URL` for public access configuration.