fix(viewer): fallback to src as HLS manifest when hlsManifest is missing

When mediaType=hls but hlsManifest field is absent (e.g. lost during
storage serialization), fall back to src if it looks like a manifest URL
(.m3u8 with http scheme). This prevents the video from silently failing
to play on Chrome where there is no native HLS support.

src/viewer/viewer.js

@@ -642,10 +642,15 @@ function createPanel(entry, tag) {
 
   if (poster) video.poster = poster;
 
-  if (mediaType === 'hls' && hlsManifest) {
+  if (mediaType === 'hls') {
-    video.dataset.hlsManifest = hlsManifest;
+    // Use explicit hlsManifest field, or fall back to src if it looks like a manifest URL.
+    // This handles the case where hlsManifest was lost in storage serialization but src
+    // still points to the .m3u8 playlist.
+    const manifestUrl = hlsManifest || (src.includes('.m3u8') && src.startsWith('http') ? src : null);
+    if (manifestUrl) {
+      video.dataset.hlsManifest = manifestUrl;
       video.dataset.mediaType = 'hls';
-    console.log('[goon-viewer] HLS detected, manifest:', hlsManifest);
+      console.log('[goon-viewer] HLS detected, manifest:', manifestUrl);
       panel.appendChild(video);
       if (tag) {
         const label = document.createElement('div');
@@ -653,7 +658,11 @@ function createPanel(entry, tag) {
         label.textContent = tag;
         panel.appendChild(label);
       }
-    return { panel, hlsEntry: { video, manifest: hlsManifest, panel } };
+      return { panel, hlsEntry: { video, manifest: manifestUrl, panel } };
+    }
+    // mediaType says HLS but we have no manifest URL — fall through to native playback.
+    // On Safari this may still work for .m3u8; on Chrome it will fail.
+    console.warn('[goon-viewer] HLS entry missing manifest URL, src:', src);
   }
 
   video.src = src;