Release v0.3.0
What's Changed
- Fix a typo on SKILL.md by @copybara-service[bot] in #5
- Update GEMINI.md and create CLAUDE.md in #7
- Update cel.dev/cel-go deps in #13
- Add SLSA + Sigstore release builds for cel-expr-mcp in #15
Full Changelog: v0.2.0...v0.3.0