chore: 默认 MySQL 用户 dg / 密码 123456

src/config.py

@@ -11,8 +11,8 @@ BIND_HOST = os.getenv("EDC_BIND_HOST", "0.0.0.0")
 # MySQL
 MYSQL_HOST = os.getenv("EDC_MYSQL_HOST", "127.0.0.1")
 MYSQL_PORT = int(os.getenv("EDC_MYSQL_PORT", "3306"))
-MYSQL_USER = os.getenv("EDC_MYSQL_USER", "root")
-MYSQL_PASSWORD = os.getenv("EDC_MYSQL_PASSWORD", "")
+MYSQL_USER = os.getenv("EDC_MYSQL_USER", "dg")
+MYSQL_PASSWORD = os.getenv("EDC_MYSQL_PASSWORD", "123456")
 MYSQL_DB = os.getenv("EDC_MYSQL_DB", "edc")
 
 # 连接池

src/handlers.py

@@ -51,7 +51,7 @@ _registry: dict[str, int] = {}
 _heartbeat: dict[str, float] = {}
 
 # UDP transport 引用，由 server.py 注入
-_udp_sender: callable | None = None
+_udp_sender: object | None = None
 
 
 def set_udp_sender(sender):