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/me/music_search.py

@@ -0,0 +1,111 @@
+"""猫耳FM 搜索（对应 sdk/me/musicSearch.ts，双通道聚合，与网页版对齐）。
+
+广播剧（置顶）: https://www.missevan.com/dramaapi/search?s=&page= → info.Datas[]
+  ——网页版搜索排前面的正剧来自这里；getsearch 的 type 参数只有 1UP主/2音单/3声音/4声优，没有剧集类型
+声音（补足）:   https://www.missevan.com/sound/getsearch?s=&p=&type=3&page_size=&sort=2 → info.Datas[]
+
+剧条目 songmid 用 "d:<drama_id>" 前缀（取流时自动取首个免费集，见 apis/me.py）；声音条目为裸 sound_id。
+"""
+
+from __future__ import annotations
+
+import asyncio
+import math
+from typing import Any
+
+from app.sdk.common.request import http_fetch
+from app.sdk.common.utils import as_dict, as_list, format_play_time
+from app.sdk.platforms.fivesing.util import encode_uri_component
+
+UA = "Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/125.0.0.0 Safari/537.36"
+H = {"User-Agent": UA, "Accept": "application/json", "Referer": "https://www.missevan.com/sound/search"}
+
+
+async def _search_dramas(keyword: str, page: int, limit: int) -> list[dict[str, Any]]:
+    resp = await http_fetch(
+        f"https://www.missevan.com/dramaapi/search?s={encode_uri_component(keyword)}&page={page}",
+        headers=H,
+        timeout=15_000,
+    )
+    body = as_dict(resp.body)
+    if resp.status_code != 200 or body.get("success") is False:
+        return []
+    datas = as_list(as_dict(body.get("info")).get("Datas"))
+    return [
+        {
+            "songmid": f"d:{item.get('id')}",
+            "name": item.get("name") or "",
+            "singer": item.get("author") or "",
+            "albumId": str(item.get("id")),
+            "albumName": item.get("name") or "",
+            "interval": 0,
+            "payPlay": True,
+            "img": item.get("cover") or None,
+            "lrc": "",
+            "lrcx": "",
+            "types": [],
+            "_types": {},
+            "disabled": False,
+        }
+        for item in datas[:limit]
+        if isinstance(item, dict)
+    ]
+
+
+async def _search_sounds(keyword: str, page: int, limit: int) -> list[dict[str, Any]]:
+    resp = await http_fetch(
+        f"https://www.missevan.com/sound/getsearch?s={encode_uri_component(keyword)}&p={page}&type=3&page_size={limit}&sort=2",
+        headers=H,
+        timeout=15_000,
+    )
+    body = as_dict(resp.body)
+    if resp.status_code != 200 or body.get("success") is False:
+        return []
+    datas = as_list(as_dict(body.get("info")).get("Datas"))
+    songs = []
+    for item in datas:
+        if not isinstance(item, dict):
+            continue
+        duration = item.get("duration")
+        songs.append(
+            {
+                "songmid": str(item.get("id")),
+                "name": item.get("soundstr") or "",
+                "singer": item.get("username") or "",
+                "albumId": "",
+                "albumName": "",
+                "interval": format_play_time(math.floor(float(duration) / 1000 + 0.5)) if duration else 0,
+                "payPlay": int(item.get("pay_type") or 0) > 0,
+                "img": item.get("front_cover") or None,
+                "lrc": "",
+                "lrcx": "",
+                "types": [],
+                "_types": {},
+                "disabled": False,
+            }
+        )
+    return songs
+
+
+async def search(keyword: str, page: int = 1, limit: int = 20, retry_num: int = 0) -> dict[str, Any]:
+    """剧优先置顶（约六成配额），零散声音补足；剧集翻页直接传 page。"""
+    del retry_num  # 契约参数，web 搜索无重试语义
+
+    async def safe(coro: Any) -> list[dict[str, Any]]:
+        try:
+            return await coro
+        except Exception:  # noqa: BLE001 - 单通道失败不拖垮搜索
+            return []
+
+    dramas, sounds = await asyncio.gather(
+        safe(_search_dramas(keyword, page, max(4, int(limit * 0.6)))),
+        safe(_search_sounds(keyword, page, limit)),
+    )
+    songs = [*dramas, *sounds][:limit]
+    return {
+        "allPage": page + (1 if len(songs) >= limit else 0),
+        "total": len(dramas) + len(sounds),
+        "limit": limit,
+        "source": "me",
+        "list": songs,
+    }