8zbhzr21j: Read the video duration from videoDuration and test its m:ss format

src/dev/fixtures.ts

@@ -86,7 +86,7 @@ export const FIXTURE_FEED_ITEMS: unknown[] = [
       id: "p3",
       content: "A short walkthrough of how we run weekly reviews with a remote team.",
       author: author("a3", "Marcus Bell"),
-      mediaItems: [{ mediaType: "video", thumbnailUrl: placeholderImage(210, "Weekly reviews"), mp4Url: FIXTURE_VIDEO_URL, durationSeconds: 154, order: 0 }],
+      mediaItems: [{ mediaType: "video", thumbnailUrl: placeholderImage(210, "Weekly reviews"), mp4Url: FIXTURE_VIDEO_URL, videoDuration: 154, order: 0 }],
     },
   },
   {

src/lib/feed-model.ts

@@ -104,7 +104,7 @@ function toMedia(raw: unknown): CardMedia[] {
       const hls = muxHlsUrl(m.hlsUrl);
       const mp4 = feedMp4Url(m.mp4Url);
       // Keep a video even with no thumbnail or playable URL yet (just published).
-      const dur = typeof m.durationSeconds === "number" ? m.durationSeconds : typeof m.duration === "number" ? m.duration : null;
+      const dur = [m.videoDuration, m.durationSeconds, m.duration].find((v): v is number => typeof v === "number" && v > 0) ?? null;
       out.push({ kind: "video", src: thumb, hlsUrl: hls, mp4Url: mp4, ...(dur ? { durationSeconds: dur } : {}) });
       continue;
     }