feat(tonedownload): Tone3000 NAM + IR browser, real anon key, tests
- Tonedownload.py: Tone3000 API client with search/download/cache/enrich
- Server.py: 4 endpoints (search models, search IRs, install model, install IR)
- Models.html + irs.html: Browse Tone3000 tab with search, trending, offline
- Models.js + irs.js: Tone3000 search UI with install tracking via localStorage
- Style.css: Card layout for search results with thumbnail, meta, install btn
- Tests: 47 tests covering data classes, cache, API, search, download, enrichment
- Anon key: Updated from placeholder to real Supabase anon key (verified: API works)
shawn
a31342b478