feat(adtracking): 新增推广链接追踪与数据大盘，支持自定义短码、注册与下单归因及二维码物料生成

1. 数据库新增 000064_ad_tracking.sql 迁移，创建 ad_tracking_links 和 ad_tracking_clicks 表，并在 users、rental_orders 增加归因字段
2. 后端新增 adtracking 模块，挂载 GET /r/:code 302 智能重定向、点击流水异步记录、转化率/GMV聚合统计及管理接口
3. 用户认证 (auth) 与订单创建 (order) 链路贯通，实现注册用户与订单成交推广短码全链路归因
4. 前端管理后台左侧新增【推广追踪】目录，支持大盘指标总览、推广链接 CRUD、状态启停、一键复制短链及二维码下载 (PNG)

frontend/src/features/auth/api/auth.ts

@@ -1,6 +1,7 @@
 import { apiClient } from '@/shared/api/client'
 import type { ApiResponse } from '@/shared/types/types'
 import type { RealnameStatusValue, RiskStatus, UserStatus } from '@/shared/types/status'
+import { getTrackCode } from '@/shared/utils/trackCode'
 
 export interface AuthUser {
   id: number
@@ -51,7 +52,12 @@ export async function sendSmsCode(phone: string, captchaId: string, captchaCode:
 }
 
 export async function loginWithSms(phone: string, code: string) {
-  const { data } = await apiClient.post<ApiResponse<LoginData>>('/auth/sms/login', { phone, code })
+  const trackCode = getTrackCode()
+  const payload: Record<string, unknown> = { phone, code }
+  if (trackCode) {
+    payload.track_code = trackCode
+  }
+  const { data } = await apiClient.post<ApiResponse<LoginData>>('/auth/sms/login', payload)
   return data.data
 }
 
@@ -64,11 +70,12 @@ export async function loginWithPassword(phone: string, password: string) {
 }
 
 export async function registerWithPassword(phone: string, code: string, password: string) {
-  const { data } = await apiClient.post<ApiResponse<LoginData>>('/auth/password/register', {
-    phone,
-    code,
-    password,
-  })
+  const trackCode = getTrackCode()
+  const payload: Record<string, unknown> = { phone, code, password }
+  if (trackCode) {
+    payload.track_code = trackCode
+  }
+  const { data } = await apiClient.post<ApiResponse<LoginData>>('/auth/password/register', payload)
   return data.data
 }