Improve Speaker API

[zhzLuke96]

完善 speaker api

TODOs

• 适配新 .spkv1.json 文件规范
• 增强查询接口，支持更多查询参数以及翻页
• 重构接口，只提供 stateless 接口
• 提供一个 demo ，使用接口创建 spkv1.json 文件
• tests

[zhzLuke96]

fd3dcc8 增加了一个 spk api 的 demo，用于从任意音频文件创建一个最简单的 spkv1.json 文件

https://github.com/lenML/Speech-AI-Forge/blob/main/examples/javascript/demo_create_spk.mjs

用法：

在根目录下执行

node ./examples/javascript/demo_create_spk.mjs "tests/test_inputs/chattts_out1.wav" "这是一个测试文本。" > demo.spkv1.json

输出文件大概为

{
  "_type": "DcSpk",
  "data": {
    "id": "14782218ca1f454ca8c52c8c2f2be7bb",
    "version": "0.1",
    "meta": {
      "_type": "DcSpkMeta",
      "data": {
        "name": "my_spk",
        "desc": "",
        "gender": "",
        "author": "",
        "version": "",
        "created_date": 1748163094283,
        "avatar": "",
        "tags": []
      }
    },
    "token": [],
    "samples": [],
    "refs": [
      {
        "_type": "DcSpkReference",
        "data": {
          "text": "test",
          "wav": {
            "_type": "bytes",
            "data": "..."
          },
          "wav_sr": 48000,
          "emotion": "default",
          "lang": null
        }
      }
    ],
    "train_info": null,
    "recommend_config": null
  }
}