fix(music): remove HLS fallback from station playback

Keep music playback on the direct PCM or DFPWM paths so music requests no longer trigger RTMP/HLS push attempts when a WAV source is unavailable.

CloudServer/server.js

@@ -2526,24 +2526,6 @@ app.post('/api/music/start', express.json(), (req, res) => {
                 return;
             }
 
-            if (HLS_ENABLE) {
-                enqueueHlsPush(name, [track]);
-                enqueueStationAudioTask(name, currentWs, {
-                    audioFormat: 'hls',
-                    streamUrl: hlsUrl,
-                    durationSec: playbackAudio.durationSec,
-                    priority: -1,
-                    interruptMode: 'none',
-                    source: 'music',
-                    loop,
-                    audioId: `music-${track}-${name}-${Date.now()}`,
-                    requeueOnPreempt: true,
-                    consoleStreamStart: { type: 'stream_start', station: name, seq: [`MUSIC:${track}`], streamName, hlsUrl },
-                    consoleStreamEnd: { type: 'stream_end', station: name }
-                });
-                return;
-            }
-
             enqueueStationAudioTask(name, currentWs, {
                 audioFormat: playbackAudio.audioFormat,
                 buffer: playbackAudio.buffer,