- Move gemini URL parsing from common/ to gemini/ package
- Add structured status codes in gemini/status_codes.go
- Improve error handling with proper Gemini status codes
- Update configuration field naming (Listen -> ListenAddr)
- Add UTF-8 validation for URLs
- Enhance security with better path validation
- Add CLAUDE.md for development guidance
- Include example content in srv/ directory
- Update build system to use standard shell
- Upgrade Go version from 1.23.4 to 1.24.3
- Replace zerolog dependency with local xerrors and logging modules
- Add local module replacements for git.antanst.com/antanst/xerrors and logging
- Remove unused color and system dependencies
- Keep gabriel-vasile/mimetype and matoous/go-nanoid dependencies
