Add per-kind stats, GIF hover playback, and static gif previews

CURRENT.md

@@ -40,6 +40,13 @@ mobile draft at 390px.
   - [x] C11 preview caching: Discord-hosted image/GIF previews (WebP 320px, hash-addressed, 5 MiB
     cap, one attempt) run after every walk in both modes. Live run `...-20260916090722`:
     `previewed: 2`; thumbs served over `/api/media/<scrape>/<item>/thumb` (200).
+  - [x] C22 Media grid polish: per-kind status row
+    (`(Images/Videos) | Downloaded I/V | Cached I/V | Loaded I/V`), GIF tiles with a translucent
+    GIF label that play the animated original on hover (cached previews are static ffmpeg frames),
+    Tenor oEmbed preview resolution, and first-frame/inline playback for embeds that carry
+    Discord's `videoUrl` (Tenor/gifv now classify as video with `play_url`). `remotePreviewUrl`
+    exposes the animated source to the UI. Live: stats per kind correct; Tenor embed stored with
+    `play_url`.
   - [x] C21 Playback of non-downloaded and expired media. `play_url` stores the embed's direct
     video (gifv/Tenor mp4); a new `/api/media/<scrape>/<item>/stream` route serves the local file
     or re-fetches the source message through slopbot to refresh expired signed CDN URLs and streams