fix(log): hide admin identity in user-visible management logs

Admin username/ID was embedded directly into the log Content for
quota changes and forced 2FA disable, leaking the operator's
identity to the target user via their own usage log page.

Move operator info into Other.admin_info so formatUserLogs strips
it for non-admin viewers, and render it in the expand panel only
for admins as "操作管理员".

Closes #4301

model/log.go

@@ -90,6 +90,30 @@ func RecordLog(userId int, logType int, content string) {
 	}
 }
 
+// RecordLogWithAdminInfo 记录操作日志，并将管理员相关信息存入 Other.admin_info，
+func RecordLogWithAdminInfo(userId int, logType int, content string, adminInfo map[string]interface{}) {
+	if logType == LogTypeConsume && !common.LogConsumeEnabled {
+		return
+	}
+	username, _ := GetUsernameById(userId, false)
+	log := &Log{
+		UserId:    userId,
+		Username:  username,
+		CreatedAt: common.GetTimestamp(),
+		Type:      logType,
+		Content:   content,
+	}
+	if len(adminInfo) > 0 {
+		other := map[string]interface{}{
+			"admin_info": adminInfo,
+		}
+		log.Other = common.MapToJsonStr(other)
+	}
+	if err := LOG_DB.Create(log).Error; err != nil {
+		common.SysLog("failed to record log: " + err.Error())
+	}
+}
+
 func RecordTopupLog(userId int, content string, callerIp string, paymentMethod string, callbackPaymentMethod string) {
 	username, _ := GetUsernameById(userId, false)
 	adminInfo := map[string]interface{}{