refactor: 架构整固——分层单向化、全量 TypeScript、直接运行

- 移除 bd/mg 两平台及磁盘残留产物；清理 api-test 死脚本、musicSdk/message+options 死模块、infSign vendor
- musicSdk/ 改名 sdk/；src/common、src/auth、src/apis 整体移入 sdk/，依赖方向定为 src → sdk 严格单向
- src/ 手写 JS 全量转 .ts，删除 JS 类型垫片 modules.d.ts；源码 import 统一 .ts 后缀
- Node 原生类型剥离直接运行 .ts（engines >=22.18），取消 tsc 发射产物，tsc 仅类型检查（pnpm typecheck）
- 删除 kwdes 备用实现与 src/index.ts 转发垫片；测试移至 test/smoke-test.ts
- common/request.ts 补显式导出类型；修复 set-cookie 单值形态、ApiError 类字段等隐患

验证：tsc 零错误，smoke-test 41/41

sdk/tx/musicSearch.ts

@@ -0,0 +1,169 @@
+import { formatPlayTime, sizeFormate } from '../index.ts'
+import { formatSingerName } from '../utils.ts'
+import { signRequest } from './utils/index.ts'
+import type { SongInfo, SongType, Quality, QualityInfo } from '../types.ts'
+
+export default {
+  limit: 50,
+  total: 0,
+  page: 0,
+  allPage: 1,
+  successCode: 0,
+  musicSearch(str, page, limit, retryNum = 0) {
+    if (retryNum > 5) return Promise.reject(new Error('搜索失败'))
+    const searchRequest = signRequest({
+      comm: {
+        ct: '11',
+        cv: '14090508',
+        v: '14090508',
+        tmeAppID: 'qqmusic',
+        phonetype: 'EBG-AN10',
+        deviceScore: '553.47',
+        devicelevel: '50',
+        newdevicelevel: '20',
+        rom: 'HuaWei/EMOTION/EmotionUI_14.2.0',
+        os_ver: '12',
+        OpenUDID: '0',
+        OpenUDID2: '0',
+        QIMEI36: '0',
+        udid: '0',
+        chid: '0',
+        aid: '0',
+        oaid: '0',
+        taid: '0',
+        tid: '0',
+        wid: '0',
+        uid: '0',
+        sid: '0',
+        modeSwitch: '6',
+        teenMode: '0',
+        ui_mode: '2',
+        nettype: '1020',
+        v4ip: '',
+      },
+      req: {
+        module: 'music.search.SearchCgiService',
+        method: 'DoSearchForQQMusicMobile',
+        param: {
+          search_type: 0,
+          searchid: Math.random().toString().slice(2),
+          query: str,
+          page_num: page,
+          num_per_page: limit,
+          highlight: 0,
+          nqc_flag: 0,
+          multi_zhida: 0,
+          cat: 2,
+          grp: 1,
+          sin: 0,
+          sem: 0,
+        },
+      },
+    })
+    return searchRequest.then(({ body }) => {
+      // console.log(body)
+      if (!body || !body.req || body.code != this.successCode || body.req.code != this.successCode) {
+        return this.musicSearch(str, page, limit, ++retryNum)
+      }
+      return body.req.data
+    })
+  },
+  // randomInt(min, max) {
+  //   return Math.floor(Math.random() * (max - min + 1)) + min
+  // },
+  // getSearchId() {
+  //   const e = BigInt(this.randomInt(1, 20))
+  //   const t = e * 18014398509481984n
+  //   const n = BigInt(this.randomInt(0, 4194304)) * 4294967296n
+  //   const a = BigInt(Date.now())
+  //   const r = (a * 1000n) % (24n * 60n * 60n * 1000n)
+  //   return String(t + n + r)
+  // },
+  handleResult(rawList) {
+    // console.log(rawList)
+    if (!rawList || !Array.isArray(rawList)) return []
+    const list: SongInfo[] = []
+    rawList.forEach(item => {
+      if (!item.file?.media_mid) return
+
+      let types: SongType[] = []
+      let _types: Partial<Record<Quality, QualityInfo>> = {}
+      const file = item.file
+      if (file.size_128mp3 != 0) {
+        let size = sizeFormate(file.size_128mp3)
+        types.push({ type: '128k', size })
+        _types['128k'] = {
+          size,
+        }
+      }
+      if (file.size_320mp3 !== 0) {
+        let size = sizeFormate(file.size_320mp3)
+        types.push({ type: '320k', size })
+        _types['320k'] = {
+          size,
+        }
+      }
+      if (file.size_flac !== 0) {
+        let size = sizeFormate(file.size_flac)
+        types.push({ type: 'flac', size })
+        _types.flac = {
+          size,
+        }
+      }
+      if (file.size_hires !== 0) {
+        let size = sizeFormate(file.size_hires)
+        types.push({ type: 'flac24bit', size })
+        _types.flac24bit = {
+          size,
+        }
+      }
+      // types.reverse()
+      let albumId = ''
+      let albumName = ''
+      if (item.album) {
+        albumName = item.album.name
+        albumId = item.album.mid
+      }
+      list.push({
+        singer: formatSingerName(item.singer, 'name'),
+        // name: item.name + (item.title_extra ?? ''),
+        name: item.title,
+        albumName,
+        albumId,
+        source: 'tx',
+        interval: formatPlayTime(item.interval),
+        songId: item.id,
+        albumMid: item.album?.mid ?? '',
+        strMediaMid: item.file.media_mid,
+        songmid: item.mid,
+        img: (albumId === '' || albumId === '空')
+          ? item.singer?.length ? `https://y.gtimg.cn/music/photo_new/T001R500x500M000${item.singer[0].mid}.jpg` : ''
+          : `https://y.gtimg.cn/music/photo_new/T002R500x500M000${albumId}.jpg`,
+        types,
+        _types,
+        typeUrl: {},
+      })
+    })
+    // console.log(list)
+    return list
+  },
+  search(str, page = 1, limit) {
+    if (limit == null) limit = this.limit
+    // http://newlyric.kuwo.cn/newlyric.lrc?62355680
+    return this.musicSearch(str, page, limit).then(({ body, meta }) => {
+      let list = this.handleResult(body.item_song)
+
+      this.total = meta.estimate_sum
+      this.page = page
+      this.allPage = Math.ceil(this.total / limit)
+
+      return Promise.resolve({
+        list,
+        allPage: this.allPage,
+        limit,
+        total: this.total,
+        source: 'tx',
+      })
+    })
+  },
+}