Add image_url column to repos table with migration, CLI image add/remove
commands, and Media RSS <media:content> elements in generated feed output.
New CLI commands: ghrel image add <repo> <url>, ghrel image remove <repo>
CLI tool that tracks GitHub releases or tags from user-defined repositories
and exposes them as a subscribable RSS 2.0 feed.
Features:
- Track releases or tags per repository
- SQLite storage with automatic deduplication
- RSS 2.0 feed with markdown-stripped release notes
- Built-in HTTP server for local feed access
- Rate-limit-aware GitHub API client
- 64 passing tests