创建 AI 歌手（Persona）

POST /api/v1/music/persona

{
  "code": 0,
  "message": "ok",
  "request_id": "req-1710000000000",
  "data": {
    "taskBatchId": "batch-xyz789",
    "items": [
      {
        "id": "persona-abc123",
        "status": "complete"
      }
    ]
  }
}

curl -X POST https://api.example.com/api/v1/music/generate \
  -H "Authorization: Bearer sk-mm-your-key" \
  -H "Content-Type: application/json" \
  -d '{
    "prompt": "[主歌]\n月光照在窗台\n风轻轻吹来\n[副歌]\n你是我心中的光",
    "title": "心中的光",
    "tags": "流行 抒情 女声",
    "persona_id": "persona-abc123"
  }'

1. 准备或生成一段具有目标人声风格的源片段
        ↓
2. （推荐）执行人声分离，提取干净的人声轨道
        ↓
3. POST /api/v1/music/persona  →  获得 persona_id
        ↓
4. POST /api/v1/music/generate  +  persona_id  →  task_id
        ↓
5. 轮询 GET /api/v1/task/{task_id}  →  audio_url

curl -X POST https://api.example.com/api/v1/music/persona \
  -H "Authorization: Bearer sk-mm-your-key" \
  -H "Content-Type: application/json" \
  -d '{
    "name": "我的专属歌手",
    "clip_id": "abc123def456"
  }'