Adds a --init mode that seeds the database with past shows from a given
anchor episode/date forward, batch-fetching likes from SoundCloud and
partitioning them into weekly buckets. Episode numbers are tracked in
the shows table and auto-incremented by the poller for new shows.
Includes full API documentation (docs/api.md) and updated README.
Made-with: Cursor
- create_app now accepts show_day/show_hour params instead of
hardcoding Wednesday 22:00
- main.py passes config values through to create_app
- Removed soundcloud_url from AddTrackRequest (not implemented);
track_id is now required
Made-with: Cursor
