Track estimated Anthropic API costs per request across all Claude API
call sites (recommender, analyze, artist-dive, generate-playlist, crate,
rabbit-hole, playlist-fix, timeline, compatibility). Log token usage and
estimated cost to the app logger. Aggregate costs in admin stats endpoint
and display total/today costs and token usage in the admin dashboard.
- Playlist Generator: describe a vibe, get a 15-30 song playlist, save or copy as text
- Artist Deep Dive: click any artist name for influences, best album, hidden gems, similar artists
- Music Timeline: visual decade breakdown of your taste with AI insight
- Nav updates: Create Playlist, Timeline links
