feat(developer): support custom OAuth 2.0 client

.env.example

@@ -21,9 +21,11 @@ PORT=8000
 # 调试模式，生产环境请设置为 false
 DEBUG=false
 
-# osu!lazer 登录设置
-OSU_CLIENT_ID="5"
-OSU_CLIENT_SECRET="FGc9GAtyHzeQDshWP5Ah7dega8hJACAJpQtw6OXk"
+# osu! 登录设置
+OSU_CLIENT_ID=5  # lazer client ID
+OSU_CLIENT_SECRET="FGc9GAtyHzeQDshWP5Ah7dega8hJACAJpQtw6OXk" # lazer client secret
+OSU_WEB_CLIENT_ID=6 # 网页端 client ID
+OSU_WEB_CLIENT_SECRET="your_osu_web_client_secret_here"  # 网页端 client secret，使用 openssl rand -hex 40 生成
 
 # SignalR 服务器设置
 SIGNALR_NEGOTIATE_TIMEOUT=30
@@ -32,7 +34,7 @@ SIGNALR_PING_INTERVAL=15
 # Fetcher 设置
 FETCHER_CLIENT_ID=""
 FETCHER_CLIENT_SECRET=""
-FETCHER_SCOPES=["public"]
+FETCHER_SCOPES=public
 FETCHER_CALLBACK_URL="http://localhost:8000/fetcher/callback"
 
 # 日志设置