fix(player): 修复音频 seek 无法拖动进度条的问题

Author: Applesaber

ChuChartManager/Controllers/MusicController.cs

@@ -188,7 +188,7 @@ public ActionResult GetAudio([FromQuery] int id, [FromQuery] string assetDir)
         var wav = AudioHelper.GetWavFromMusic(music);
         if (wav == null) return NotFound();
 
-        return File(wav, "audio/wav");
+        return File(new MemoryStream(wav), "audio/wav", enableRangeProcessing: true);
     }
 
     [HttpGet]

ChuChartManager/Front/src/store/player.ts

@@ -16,6 +16,7 @@ audio.addEventListener('timeupdate', () => {
   if (!isSeeking.value) currentTime.value = audio.currentTime
 })
 audio.addEventListener('loadedmetadata', () => { duration.value = audio.duration })
+audio.addEventListener('durationchange', () => { if (Number.isFinite(audio.duration)) duration.value = audio.duration })
 audio.addEventListener('ended', () => { isPlaying.value = false })
 
 watch(volume, (v) => { audio.volume = v })
@@ -48,5 +49,11 @@ export function startSeek() { isSeeking.value = true }
 export function endSeek(time: number) {
   audio.currentTime = time
   currentTime.value = time
-  isSeeking.value = false
+  const unlock = () => {
+    isSeeking.value = false
+    audio.removeEventListener('seeked', unlock)
+  }
+  audio.addEventListener('seeked', unlock, { once: true })
+  // 兜底：如果 seeked 未触发（如音频未加载），300ms 后强制解锁
+  setTimeout(unlock, 300)
 }