v0.6.0-rc230

## What's Changed
* fix(mcp): increase MAX_TIMEOUT and add env override by @buger in https://github.com/probelabs/probe/pull/400
* fix(extract): resolve file paths to parent directory for cwd by @buger in https://github.com/probelabs/probe/pull/402
* fix(mcp): convert absolute paths to relative in tool results by @buger in https://github.com/probelabs/probe/pull/404
* feat: add Gemini built-in tools (google_search, url_context) by @buger in https://github.com/probelabs/probe/pull/405


**Full Changelog**: https://github.com/probelabs/probe/compare/v0.6.0-rc229...v0.6.0-rc230