feat: flow design & page query refactor

server/pkg/model/login_account.go

@@ -9,3 +9,9 @@ type LoginAccount struct {
 func (la *LoginAccount) GetAesKey() string {
 	return la.Token[:24]
 }
+
+// 系统账号
+var SysAccount = &LoginAccount{
+	Id:       1,
+	Username: "system",
+}