feat: 接入积分服务端真实接口并完成隔离联调

新增积分服务端接口封装、积分中心页面，支持登录回跳、签到恢复、积分明细等功能。清理缓存时保留未确认签到键，新增ApiRequestError错误类型区分业务状态，更新开发文档记录积分页面联调完成情况。

services/api.uts

@@ -6,6 +6,16 @@ export { API_BASE_URL, API_DEMO_ENABLED } from './config.uts'
 const REQUEST_TIMEOUT = 10000
 const SESSION_KEY = 'aiFinanceSession'
 
+export class ApiRequestError extends Error {
+    status: number
+    errorCode: string
+    constructor(message: string, status: number, errorCode: string) {
+        super(message)
+        this.status = status
+        this.errorCode = errorCode
+    }
+}
+
 const wait = (duration: number) => new Promise<void>((resolve) => { setTimeout(() => resolve(), duration) })
 
 export function saveSession(token: string, phone: string, userId: string, expiresAt: string): void {
@@ -74,7 +84,9 @@ const requestJson = (path: string, method: RequestMethod, payload: UTSJSONObject
                 const message = body['msg'] as string | null
                 if (response.statusCode < 200 || response.statusCode >= 300 || code != 1) {
                     if (code == 401 && sentToken.length > 0) clearSession()
-                    reject(new Error(message != null && message.length > 0 ? message : '请求失败，请稍后重试')); return
+                    const details = body['data']
+                    const errorCode = details != null && typeof details == 'object' ? (details as UTSJSONObject).getString('errorCode') ?? '' : ''
+                    reject(new ApiRequestError(message != null && message.length > 0 ? message : '请求失败，请稍后重试', response.statusCode, errorCode)); return
                 }
                 const data = body['data']
                 if (data == null) resolve(new UTSJSONObject())