feat: add binding checks in BindBL and BindSS functions to prevent account conflicts

service/beatleader/bind_bl.go

@@ -91,6 +91,12 @@ func (bl *blQuery) BindBL(qqId string, blId string) (reply string) {
 		}
 		rows.Close()
 	}
+	if rows, err := tx.Query("SELECT * FROM ssBind WHERE ssid = ?", blId); err == nil {
+		if rows.Next() {
+			return "该bl账号已绑定至其他用户"
+		}
+		rows.Close()
+	}
 	_, err = tx.Exec("INSERT INTO ssBind(qqid, ssid) VALUES(?, ?)", qqId, blId)
 	if err != nil {
 		return "绑定失败,请稍后重试:" + err.Error()

service/scoresaber/bind_ss.go

@@ -98,6 +98,13 @@ func (ss *ssQuery) BindSS(qqId string, ssId string) (reply string) {
 		}
 		rows.Close()
 	}
+	// 检查是否已绑定
+	if rows, err := tx.Query("SELECT * FROM ssBind WHERE ssid = ?", ssId); err == nil {
+		if rows.Next() {
+			return "该ss账号已绑定至其他用户"
+		}
+		rows.Close()
+	}
 	_, err = tx.Exec("INSERT INTO ssBind(qqid, ssid) VALUES(?, ?)", qqId, ssId)
 	if err != nil {
 		return "绑定失败"