feat(python): 完成 Python 全量迁移——剩余平台、登录通道与公共层修复

- 新增 5sing/apple/xm/me/qt/lr 平台包与取流实现（含 xm-sign、MissEvan 签名、蜻蜓 HMAC、Apple developer token）
- 新增 wy/kg/tx/lr 登录：扫码、手机号、账密（kg 20028 风控指纹）、cookie 绑定、kg/tx 续期
- request 层：保留多值 Set-Cookie；JSON body 紧凑化（修复 kg 网关验签）；直连不经系统代理（对齐 Node）
- 登录路由统一 Body(embed=True)，修复扫码轮询 422；lifespan 接入登录续期调度
- ruff/format/pyright 全绿；14 平台真实联网与 HTTP 路由验证通过

app/sdk/platforms/kw/__init__.py

@@ -0,0 +1,95 @@
+"""酷我音乐（对应 sdk/kw/index.ts 的 default export）。
+
+能力位与 TS 一致：搜索 / 榜单 / 歌单广场 / 热搜 / 评论 / 专辑 / 歌单 / 解析，
+顶层挂 get_music_url（取流在 apis/kw.py）、get_lyric、get_pic、get_music_info、
+handle_music_info、get_music_detail_page_url。
+
+酷我没有歌手主页子模块（TS 侧也没有），`singer` 能力位留空，路由据此返回 404。
+"""
+
+from __future__ import annotations
+
+from typing import Any
+
+from app.sdk.apis.kw import get_music_url
+from app.sdk.common.request import http_fetch
+from app.sdk.platforms._base import Platform
+from app.sdk.platforms.kw import (
+    album,
+    comment,
+    hot_search,
+    leaderboard,
+    lyric,
+    music_search,
+    parse,
+    pic,
+    playlist,
+    song_list,
+)
+from app.sdk.platforms.kw.util import format_singer
+
+MUSIC_INFO_API = "http://www.kuwo.cn/api/www/music/musicInfo?mid={songmid}"
+
+
+async def get_music_info(song_info: dict[str, Any]) -> dict[str, Any]:
+    """歌曲详情（歌名/歌手/封面/专辑）。上游 code != 200 时抛出 msg 原文。"""
+    songmid = str(song_info.get("songmid") or "")
+    resp = await http_fetch(MUSIC_INFO_API.format(songmid=songmid))
+    body = resp.body if isinstance(resp.body, dict) else {}
+    if body.get("code") == 200:
+        return body.get("data") or {}
+    raise RuntimeError(str(body.get("msg") or "获取歌曲信息失败"))
+
+
+async def handle_music_info(song_info: dict[str, Any]) -> dict[str, Any]:
+    """用 get_music_info 就地补全 name / singer / img / albumName，与原实现一致。"""
+    info = await get_music_info(song_info)
+    song_info["name"] = info.get("name")
+    song_info["singer"] = format_singer(str(info.get("artist") or ""))
+    song_info["img"] = info.get("pic")
+    song_info["albumName"] = info.get("album")
+    return song_info
+
+
+def get_music_detail_page_url(song_info: dict[str, Any]) -> str:
+    return f"http://www.kuwo.cn/play_detail/{song_info.get('songmid') or ''}"
+
+
+async def get_music_urls(music_info: dict[str, Any]) -> dict[str, str]:
+    """批量取各档直链，返回 `{type: url}`（原 getMusicUrls 的回调语义）。"""
+    import asyncio
+
+    types = music_info.get("types") or []
+    songmid = str(music_info.get("songmid") or "")
+    results = await asyncio.gather(
+        *(get_music_url({"songmid": songmid}, str(item.get("type") or "")) for item in types),
+        return_exceptions=True,
+    )
+    type_url: dict[str, str] = {}
+    for res in results:
+        if isinstance(res, BaseException):
+            continue
+        if res.get("url"):
+            type_url[str(res.get("type"))] = str(res["url"])
+    return type_url
+
+
+MODULE = Platform(
+    id="kw",
+    name="酷我音乐",
+    music_search=music_search,
+    leaderboard=leaderboard,
+    song_list=song_list,
+    hot_search=hot_search,
+    comment=comment,
+    album=album,
+    playlist=playlist,
+    parse=parse,
+    get_music_url=get_music_url,
+    get_music_urls=get_music_urls,
+    get_lyric=lyric.get_lyric,
+    get_pic=pic.get_pic,
+    get_music_info=get_music_info,
+    handle_music_info=handle_music_info,
+    get_music_detail_page_url=get_music_detail_page_url,
+)