Check for newer wrapper versions on startup (once per process).
Python queries PyPI, JS queries npm registry. Respects
CLOAKBROWSER_AUTO_UPDATE=false and CLOAKBROWSER_DOWNLOAD_URL
(custom mirror mode skips external registry calls).
Includes unit tests for both languages covering: update detection,
env var gating, network error handling, and once-per-process guard.
- Add CHANGELOG.md with v0.3.0 release notes (Chromium 145, 26 patches)
- Bump Python and JS package versions from 0.2.2 to 0.3.0
- Update README with v0.3.0 highlights section and changelog link
- Correct roadmap status for Chromium 145 build