fix(player): keep playing the current video when it leaves the live feed queue

Auto-marking a video watched near its end invalidates the feed query; the
refetched/reordered queue can no longer contain the playing item, so
findIndex returned -1 and the active item fell back to queue[0] — silently
jumping playback to an unrelated video and defeating Loop "One" (and
auto-advance:off). Pin the last resolved video in a ref and keep playing it
when it drops out of the queue instead of snapping to queue[0].

VERSION

@@ -1 +1 @@
-0.23.1
+0.23.2

frontend/src/components/PlayerModal.tsx

@@ -93,9 +93,18 @@ export default function PlayerModal({
     // `video` in the queue (the feed passes its whole list + the clicked video, no index).
     startIndex != null ? queue?.[startIndex]?.id ?? video.id : video.id
   );
-  let index = queue ? queue.findIndex((v) => v.id === playingId) : 0;
+  // Resolve the playing item from the LIVE queue so prev/next + the N/M counter track it. But
-  if (index < 0) index = 0;
+  // the feed query reorders/refetches under us — e.g. auto-marking the current video watched near
-  const active = queue && queue[index] ? queue[index] : video;
+  // its end invalidates the feed — and the playing item can drop OUT of the loaded queue. When
+  // that happens we must KEEP PLAYING it, not snap back to queue[0] (which would silently jump to
+  // an unrelated video mid-playback, ignoring loop/auto-advance). So pin the last resolved video
+  // in a ref and fall back to it; neighbour stepping just treats it as sitting before queue[0].
+  const foundIndex = queue ? queue.findIndex((v) => v.id === playingId) : -1;
+  const inQueue = foundIndex >= 0;
+  const activeRef = useRef<Video>(video);
+  const active = inQueue ? queue![foundIndex] : activeRef.current;
+  activeRef.current = active;
+  const index = inQueue ? foundIndex : 0;
   const hasQueue = !!queue && queue.length > 1;
   // startAt only applies to the item we opened with; advanced items resume their own pos.
   const resumeAt =

frontend/src/lib/releaseNotes.ts

@@ -14,6 +14,14 @@ export interface ReleaseEntry {
 }
 
 export const RELEASE_NOTES: ReleaseEntry[] = [
+  {
+    version: "0.23.2",
+    date: "2026-07-05",
+    summary: "Fixed the player jumping to a different video when the current one is marked watched.",
+    fixes: [
+      "Player: watching a video to the end (or otherwise marking it watched) no longer makes playback jump to an unrelated video. This also fixes Loop “One”, which the jump could override — the current video now correctly repeats even after it drops out of the live feed order.",
+    ],
+  },
   {
     version: "0.23.1",
     date: "2026-07-05",