submodule对gitea不管用，所以直接拉了一份拉格兰

Lagrange.Core/Lagrange.OneBot/Utility/SongHelper.cs

@@ -0,0 +1,23 @@
+using Lagrange.Core.Utility.Network;
+
+namespace Lagrange.OneBot.Utility;
+
+public class SongHelper
+{
+    public async Task<dynamic> GetQMusicInfo(string id)
+    {
+        const string template = """https://u.y.qq.com/cgi-bin/musicu.fcg?format=json&inCharset=utf8&outCharset=utf-8&notice=0&platform=yqq.json&needNewCode=0&data={"comm":{"ct":24,"cv":0},"songinfo":{"method":"get_song_detail_yqq","param":{"song_type":0,"song_mid":"","song_id":*},"module":"music.pf_song_detail_svr"}}""";
+        string url = template.Replace("*", id);
+        string response = await Http.GetAsync(url);
+
+        return response;
+    }
+
+    public async Task<dynamic> GetNetEaseMusicInfo(string id)
+    {
+        string url = $"http://music.163.com/api/song/detail/?id={id}&ids=[{id}]";
+        string response = await Http.GetAsync(url);
+
+        return response;
+    }
+}