fix(hls): improve audio track selection and auto-detect "Original"

- Auto-select "Original" audio track by default in both native and Plyr HLS players
- Fix native HLS audio selector to use numeric indices instead of string matching
- Robustly detect "original" track by checking both `name` and `lang` attributes
- Fix audio track change handler to correctly switch between available tracks

1 files changed, 5 insertions, 3 deletions

diff --git a/youtube/static/js/plyr.hls.start.js b/youtube/static/js/plyr.hls.start.js
index 91e0221..bc8ec23 100644
--- a/youtube/static/js/plyr.hls.start.js
+++ b/youtube/static/js/plyr.hls.start.js
@@ -361,9 +361,11 @@
 
       if (hlsInstance && hlsInstance.audioTracks && hlsInstance.audioTracks.length > 0) {
         // Prefer "original" audio track
-        const originalIdx = hlsInstance.audioTracks.findIndex(t =>
-          (t.name || '').toLowerCase().includes('original')
-        );
+        const originalIdx = hlsInstance.audioTracks.findIndex(t => {
+          const name = (t.name || '').toLowerCase();
+          const lang = (t.lang || '').toLowerCase();
+          return name.includes('original') || lang === 'original';
+        });
         if (originalIdx !== -1) {
           hlsInstance.audioTrack = originalIdx;
           console.log('Selected original audio track:', hlsInstance.audioTracks[originalIdx].name);