Release v0.31.0-preview.2

What's Changed

• fix(patch): cherry-pick ea48bd9 to release/v0.31.0-preview.1-pr-20577 [CONFLICTS] by @gemini-cli-robot in https://github.com/google-gemini/gemini-cli/pull/20592

Full Changelog: https://github.com/google-gemini/gemini-cli/compare/v0.31.0-preview.1...v0.31.0-preview.2