bf61d6cfa3
Server's playlists registry has 8 system kinds (internal/playlists/ system.go:281-290) but Flutter Home only ever showed 5 slots: For You + Discover + 3 Songs-like. Operator request 2026-06-01: have the Android Home view also surface the 5 secondary kinds so the user can find them without digging into the Library > Playlists list. Android buildPlaylistsRow now appends deep_cuts, rediscover, new_for_you, on_this_day, first_listens in server-registry order after the existing Songs-like slots, when those playlists actually exist. No placeholders for the new 5 since they depend on library shape (deep albums for Deep cuts, prior history for On this day, etc.) and an empty placeholder would imply they're still building when they may just have no candidates. PlaylistCard.kt systemLabelFor gains explicit labels for the new kinds and drops the dead "todays_mix" branch (no such variant in the server registry). This diverges from Flutter Home which never surfaces the secondary kinds; web UI catch-up tracked as task #53. Naming note: the "Rediscover" playlist tile and the unrelated "Rediscover" recommendations section on the same Home both read "Rediscover" - operator follow-up to disambiguate.