chore(release): 0.76.0 — E7 Downloads & Media Library

Bundles the whole E7 epic (library metadata, crop fix, share-by-default, in-app player,
browser-playable guarantee, local upload) plus the deep-review hardening. Bump VERSION and
add the 0.76.0 release-notes entry (RELEASE_NOTES[0] must match VERSION).

VERSION

@@ -1 +1 @@
-0.75.0
+0.76.0

frontend/src/lib/releaseNotes.ts

@@ -14,6 +14,25 @@ export interface ReleaseEntry {
 }
 
 export const RELEASE_NOTES: ReleaseEntry[] = [
+  {
+    version: "0.76.0",
+    date: "2026-08-29",
+    summary:
+      "The Download Center becomes a real media library: play your downloaded and uploaded video and audio right in the app, upload any file into the same library, and share anything in one click. Plus a fix so a cropped clip is framed exactly as you selected.",
+    features: [
+      "Play a finished download or upload in the app — video and audio open in a proper in-app player with seek, volume and fullscreen, no separate download needed.",
+      "Upload your own files into the library. Video and audio join with the full function set (play, edit, share); any other file (PDF, zip, document…) joins as a download-only item with its own info card. Drag-and-drop or pick a file, with a live progress bar you can cancel.",
+      "One-click Share: the Share button now creates a link (if there isn't one), copies it, and offers “open in new tab” — all in a single click, downloadable by default. The full link controls (password, expiry, revoke, share-with-a-user) stay one click away.",
+      "Library rows now show the file format and size at a glance (e.g. “MP4 · 142 MB”), and a shared link to a plain file shows a clean info card with a Download button.",
+    ],
+    fixes: [
+      "Cropping a clip in the editor now produces output framed exactly as the on-screen selection showed — the crop rectangle and the saved result no longer drift apart on a non-16:9 video.",
+      "Every download is now guaranteed to play in any browser (including iPhone/iPad): the output is a universally-playable MP4/H.264 (or M4A/MP3 for audio), so “Play” always works.",
+    ],
+    chores: [
+      "The whole epic went through several multi-agent deep-review rounds — findings fixed and re-reviewed each round until a round came back clean. Included a security hardening pass on the new upload path (an uploaded file can never be served in a way that lets it run code in your browser) and a fix so a failed upload never leaves an orphaned file on disk.",
+    ],
+  },
   {
     version: "0.75.0",
     date: "2026-08-29",