feat!: migrate to Standard.site exclusively, remove WhiteWind/Leaflet support
BREAKING CHANGE: Removed all WhiteWind and Leaflet platform support in favor of Standard.site exclusively.
Major changes:
- Remove WhiteWind and Leaflet document/publication fetching
- Create new Standard.site documents service (documents.ts)
- Replace BlogPostCard with DocumentCard component
- Update all routes to use Standard.site publications only
- Remove PUBLIC_ENABLE_WHITEWIND environment variable
- Update archive page to display Standard.site documents
- Fix fetchFn parameter passing in musicbrainz.ts and fetch.ts
- Update README with Standard.site-only documentation
- Simplify publication system to single platform
- Remove Leaflet publication base_path logic
All slug mappings now point exclusively to Standard.site publications.
RSS feeds now generate from Standard.site documents only.
Archive page displays Standard.site documents grouped by date.
Migration guide available in updated README.md