v1.5.2 — Linux Consumer Chrome 136

Added

• Linux consumer Chrome 136 support. download_chrome now downloads the consumer .deb from UChicago CS mirror and auto-extracts with dpkg-deb. Chrome for Testing remains as fallback.
• Linux auto-extraction in download_chrome MCP tool — extracts .deb and removes cron update scripts automatically.

Changed

• chrome136_urls.json Linux entry updated from Chrome for Testing .zip to consumer .deb with new SHA-256 hash.