v0.44.0

UX release. Rejecting a recommendation now opens a structured picker with six fixed reasons plus a "Don't show again" checkbox that promotes the rejection to a permanent per-user blacklist. Settings gets a new Blocked tab to view, search, and unblock entries. The blocklist filters the pipeline, subscriptions, and quick-discover independent of the existing rejection cooldown, so unblocking does not bypass the cooldown.

Added

• Permanent per-user artist blacklist (artist_blocks table) with (user_id, artist_id) unique upsert
• Structured rejection reasons (6 fixed + freeform "Other") via a bottom-sheet/modal picker
• Settings > Blocked tab with debounced search, cursor pagination, and unblock-with-undo toast
• New REST routes: POST/GET /api/v1/artist-blocks, DELETE /api/v1/artist-blocks/:artistId
• rejection_reason and rejection_reason_text columns on recommendations
• Pipeline filter, subscription runner, and quick-discover all honour the blocklist as an independent layer
• 28 new i18n keys translated across all 15 shipped locales
• Backup/restore round-trips include artist_blocks
• Server-side Zod validation enforces the UI invariants (not_right_now ⊥ permanent; reasonText only valid when reason='other')

Changed

• PATCH /api/v1/recommendations/:id with status: 'rejected' accepts optional reason, reasonText, and permanent fields; legacy callers continue to work unchanged
• StoreDb interface gains getBlockedMbids(userId)
• New Digarr signature theme added to the theme picker