fix: harden LivePlayer HLS attach races

src/components/LivePlayer.vue

@@ -103,6 +103,7 @@ async function attachPlayer(url) {
     return
   }
 
+  try {
     const { default: Hls } = await import('hls.js')
     if (seq !== attachSeq) return
     if (!Hls.isSupported()) {
@@ -121,13 +122,20 @@ async function attachPlayer(url) {
       if (seq !== attachSeq) return
       video.play().catch(() => {})
     })
+  } catch (_) {
+    if (seq === attachSeq) emit('error')
+  }
 }
 
 watch(
   () => props.playUrl,
   (url) => {
-    if (playable.value) attachPlayer(url)
-    else destroyPlayer()
+    if (playable.value) {
+      attachPlayer(url).catch(() => {})
+    } else {
+      attachSeq += 1
+      destroyPlayer()
+    }
   },
   { immediate: true }
 )