webui4frpc: 独立可用的可视化 frpc 控制器 (M0)

- 零 frp 源码依赖，单二进制 (Go + Vue3 + VueFlow + Element Plus)
- 画布多对多连线，渲染 tcp/udp/http/https frpc 配置
- worker 进程管理：自愈、日志轮转、崩溃退避重启
- frpc 一键安装 (GitHub Releases) + 手动指定路径
- 三页 UI：状态(默认)/连接配置/设置
- 状态页实时节点/转发状态，节点可增删改启停
- 画布冲突检查：端口/域名冲突标红 + 弹窗拦截保存
- backend 单测覆盖 store/render/process/httpapi/install
- plan.md + FRPC_FEATURES_AUDIT.md 文档

web/src/types.ts

@@ -0,0 +1,96 @@
+// Data models shared with the Go backend.
+
+// CanvasLocal / CanvasRemote are aliases kept for node components migrated
+// from the original prototype; they equal Local / Remote.
+export type CanvasLocal = Local
+export type CanvasRemote = Remote
+
+// CanvasLink mirrors the store.Link JSON shape used by the canvas editor.
+export type CanvasLink = Link
+
+export interface Local {
+  name: string
+  ip: string
+  port: number
+  protocol: string // tcp | udp | http | https
+}
+
+export interface Remote {
+  name: string
+  ip: string
+  port: number // frps connect port
+  token?: string
+  url?: string
+  enabled: boolean
+}
+
+export interface Link {
+  id?: number
+  local: string
+  remote: string
+  remotePort: number
+  offsetX?: number
+  offsetY?: number
+}
+
+export interface CanvasData {
+  locals: Local[]
+  remotes: Remote[]
+  links: Link[]
+}
+
+export interface Settings {
+  autoStartProfiles: boolean
+  restartOnExit: boolean
+  restartIntervalSeconds: number
+  binaryPath?: string
+}
+
+export interface ProcessStatus {
+  state: string
+  pid?: number
+  startTime?: number
+  restartCount: number
+  exitCode?: number
+  err?: string
+}
+
+export interface StatusProfile {
+  name: string
+  enabled: boolean
+  process: ProcessStatus
+  hasProcess: boolean
+  forwards: { service: string; remotePort: number; localPort?: number }[]
+}
+
+export interface StatusResp {
+  version: string
+  workDir: string
+  settings: Settings
+  services: Local[]
+  remotes: Remote[]
+  binaryPath: string
+  profiles: StatusProfile[]
+  localStatus: LocalStatus[]
+}
+
+export interface LocalTargetStatus {
+  remote: string
+  remotePort: number
+  workerState: string
+}
+
+export interface LocalStatus {
+  local: Local
+  targets: LocalTargetStatus[]
+}
+
+export interface BinaryStatus {
+  binaryPath: string
+  version?: string
+}
+
+export interface InstallResult {
+  path: string
+  version: string
+}