docs(release): reflect unified notification center in v0.9.0 notes

frontend/src/lib/releaseNotes.ts

@@ -19,7 +19,7 @@ export const RELEASE_NOTES: ReleaseEntry[] = [
     date: "2026-06-18",
     summary: "A notifications inbox, and automatic clean-up of videos that can no longer be played.",
     features: [
-      "New Notifications module in the left sidebar, with an unread badge: a durable place that collects updates about your library and the system, alongside the existing pop-up bell. Mark items read, dismiss them, or clear everything.",
+      "New Notifications center in the left sidebar, with an unread badge: one place for both durable system updates (about your library and background jobs) and your recent activity (with quick Unhide / Unwatch / Find-in-feed actions). Mark items read, dismiss them individually, or clear everything. Pop-up toasts still appear as before.",
       "Automatic library maintenance: a background job spots videos that can no longer be played anywhere — deleted, made private, or premieres that never went live — hides them from your feed right away, and removes them after a grace period. Genuine 24/7 livestreams are left alone.",
       "If a video you'd saved or added to a playlist gets removed this way, you get a single summary notification listing them — never one message per video.",
       "Admin Scheduler: run any background job on demand with a “Run now” button (or “Start all now”), watch a live progress bar while long jobs run, and get an inbox notification with the result when a job you started finishes.",