支持坐席切换在线状态，转接列表展示状态

侧栏可切换在线/忙碌/离线；转接弹窗显示状态点与标签，列表含在线与忙碌坐席。

web/src/services/api.ts

@@ -1,7 +1,15 @@
 import { get, post, put, del, getList, postForm, downloadFile } from './request'
 
 export interface LoginParams { username: string; password: string }
-export interface LoginResult { token: string; user_id: number; tenant_id: number; nickname: string; role: string }
+export interface LoginResult {
+  token: string
+  user_id: number
+  tenant_id: number
+  nickname: string
+  role: string
+  /** online | busy | offline */
+  status?: string
+}
 
 export interface Session {
   id: number; tenant_id: number; channel_id: number; customer_id: number; agent_id: number | null
@@ -58,7 +66,13 @@ export interface SessionEvent {
   id: number; session_id: number; operator_id: number; action: string; detail: string; created_at: string
 }
 
-export interface AvailableAgent { id: number; nickname: string; status: string }
+export interface AvailableAgent {
+  id: number
+  nickname: string
+  /** online | busy | offline | disabled */
+  status: string
+  role?: string
+}
 
 export interface Customer {
   id: number; tenant_id: number; name: string; phone: string; email: string
@@ -182,6 +196,15 @@ export interface StatisticsKpis {
 // Auth
 export const login = (params: LoginParams) => post<LoginResult>('/login', params)
 
+export type AgentPresence = 'online' | 'busy' | 'offline'
+
+export const getMe = () =>
+  get<{ user_id: number; tenant_id: number; nickname: string; role: string; status: string; username?: string }>('/me')
+
+/** 坐席自行切换在线状态 */
+export const updateMyStatus = (status: AgentPresence) =>
+  put<{ user_id: number; status: string }>('/me/status', { status })
+
 // Sessions
 export const getSessions = (params?: {
   status?: string