Adds "Recommendations" as a 4th Discover tab (alongside Home / Editor's Picks /
For You), rendering the qbz-external-reco engine output. NOT part of For You.
- ui: new ExternalRecoState global + ExternalRecoView (4 personalized carousels
C1-C4 with length>0 self-hide gates + the editorial cold-start rows), 4th tab
pill button in HomeView, mount on active-tab == "recommendations", skeleton
gate. Export the global from app.slint.
- bin: external_reco controller — RecoCatalog over QbzCore, per-user resolution
cache lifecycle, LocalHistory from reco_store (known artists + recent plays),
scrobbler-username gate (is_authed), build + apply into ExternalRecoState
(models built on the UI thread; slint::Image is !Send) + artwork jobs.
- bin: 6 ArtworkTarget variants + resolution arms; reco::recent_track_ids
wrapper; home::select_tab + discover_prefs::push_descriptors treat the new tab
like For You (own view, Home/Editor pushed empty); lazy-load hooks at the tab
click + both Discover nav-restore sites.
cargo check -p qbz green. Last.fm reads still need the proxy allowedMethods
deploy (separate qbz-api-proxy repo) before they return data.
cc
vicrodh
ec98245364