Follow-up to the auth hotfix (633aa82b). The Spotify playlist-write scope was reverted out of the
global OAuth scope (it was force-invalidating every user's token on upgrade), so "Sync to Spotify"
can't get write access yet — clicking it would dead-end on a misleading "reconnect Spotify". So:
- removed the "Sync to Spotify" button from the export modal (Deezer stays); the backend write
client + endpoint are left in place, dormant, for when on-demand write-auth lands
- modal copy is now Deezer-only ("Match missing tracks (Deezer)", "stored Deezer ID")
- release notes (pr_description, helper.js WHATS_NEW + version modal, RELEASE_2.8.1_discord.md)
reworded from "Spotify & Deezer" to "Deezer", with a "Spotify export coming in a follow-up" note
64 script-integrity tests green; discord file back under the 2000-char limit (1952); no stale
Sync-to-Spotify mentions remain. Deezer export (live-verified) is unaffected.
Bumps base version 2.8.0 → 2.8.1 and the docker-publish default tag. Headline is the
Spotify/Deezer playlist export (#945); also the Library Reorganize rename-only mode (#875),
broader lossless handling (#941/#939), download + search fixes, the refined reduce-visual-effects
pass, and merged contributor PRs (#942/#943/#944).
Updates the five release touch-points: web_server version, docker-publish default, pr_description.md,
helper.js WHATS_NEW + VERSION_MODAL_SECTIONS (current release + Earlier-in-2.8.0 summary), and the
new RELEASE_2.8.1_discord.md.
