feat: add dashboard API v2 pagination endpoints (#5351)

server/http/model/v2.go

@@ -0,0 +1,46 @@
+// Copyright 2026 The frp Authors
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+package model
+
+type V2PageResp[T any] struct {
+	Total    int `json:"total"`
+	Page     int `json:"page"`
+	PageSize int `json:"pageSize"`
+	Items    []T `json:"items"`
+}
+
+type V2UserResp struct {
+	User        string `json:"user"`
+	ClientCount int    `json:"clientCount"`
+	ProxyCount  int    `json:"proxyCount"`
+}
+
+type V2ProxyResp struct {
+	Name     string            `json:"name"`
+	Type     string            `json:"type"`
+	User     string            `json:"user"`
+	ClientID string            `json:"clientID"`
+	Spec     any               `json:"spec"`
+	Status   V2ProxyStatusResp `json:"status"`
+}
+
+type V2ProxyStatusResp struct {
+	State           string `json:"phase"`
+	TodayTrafficIn  int64  `json:"todayTrafficIn"`
+	TodayTrafficOut int64  `json:"todayTrafficOut"`
+	CurConns        int64  `json:"curConns"`
+	LastStartTime   string `json:"lastStartTime"`
+	LastCloseTime   string `json:"lastCloseTime"`
+}