@

docs: reorganize api docs into categorized subdirectories and fill missing docs

- Categorize 77 existing api docs into 16 business-domain subdirectories
  (auth/ad/wallet/coupon/compare/savings/signin/tasks/invite/user/
   device/platform/intent/meituan/other) plus admin/ and internal/
- Split admin/ into 7 sub-resource subdirectories (auth/users/wallet/
  withdraws/feedbacks/admins/ad) with 4 single-file docs at root
- Create 21 new docs covering 28 previously undocumented endpoints:
  ad/watch-report, wallet/transfer-auth (3 endpoints), coupon/session+
  stats+completed-today+prompt (7), invite/me+invitees+bind+landing-track,
  user/onboarding (2), platform/flags+ad-config+app-version,
  intent/step+precoupon/step, analytics/events, order/report,
  report/submit+records, feedback/config+records, trace/finalize
- Add mock request/response JSON examples to all new docs
- Create docs/README.md with full category index for LLM navigation
- Update docs/api/README.md: fix all links, add new endpoint rows,
  replace "no doc" markers with actual links
- Fix back-navigation links (./README.md -> ../README.md or
  ../../README.md) in all moved files
@

docs/api/admin/users/admin-user-detail.md

@@ -0,0 +1,43 @@
+# GET /admin/api/users/{user_id} — 用户 360 详情
+
+> 所属:Admin·用户 组（前缀 `/admin/api/users`） | 鉴权:Bearer admin_token（角色:任意已登录管理员,无 require_role） | [← 返回 API 索引](../../README.md)
+
+## 入参
+- 路径:`user_id`(int)
+
+## 出参
+响应 `200`:`AdminUserOverview`(基础资料 + 钱包余额 + 各项 count;历史明细走各自分页接口)
+
+| 字段 | 类型 | 说明 |
+|---|---|---|
+| `user` | AdminUserListItem | 用户基础资料,字段见下 |
+| `coin_balance` | int | 当前金币余额(个数);无金币账户时为 0 |
+| `cash_balance_cents` | int | 当前现金余额(分);无账户时为 0 |
+| `total_coin_earned` | int | 累计获得金币(个数);无账户时为 0 |
+| `comparison_total` | int | 比价记录总数 |
+| `comparison_success` | int | 比价成功数(`status=success`) |
+| `withdraw_total` | int | 提现单总数 |
+| `withdraw_success_cents` | int | 提现成功累计金额(分,`status=success` 之和) |
+| `feedback_total` | int | 反馈总数 |
+
+**AdminUserListItem**(`user` 字段)
+| 字段 | 类型 | 说明 |
+|---|---|---|
+| `id` | int | 用户 id |
+| `phone` | string | 手机号 |
+| `nickname` | string \| null | 昵称,可空 |
+| `register_channel` | string | 注册渠道 |
+| `status` | string | 用户状态:`active` / `disabled` / `deleted` |
+| `wechat_openid` | string \| null | 微信 openid,可空 |
+| `created_at` | datetime | 注册时间(UTC) |
+| `last_login_at` | datetime | 上次登录时间(UTC) |
+
+## 错误码
+- `401` 未带/无效/过期 admin token、管理员被禁用(头带 `WWW-Authenticate: Bearer`)
+- `404` 用户不存在(`detail: "用户不存在"`)
+- `422` `user_id` 非整数
+
+## 说明
+- 金币三项(`coin_balance` / `cash_balance_cents` / `total_coin_earned`)读 [coin_account](../database/coin_account.md);从未发生金币动作(账户不存在)时统一返回 0。
+- 各 count 为聚合数,明细历史走带 `user_id` 过滤的分页接口(金币流水 / 现金流水 / 提现 / 比价 / 反馈)。
+- 关联用户表 [user](../database/user.md);金币账户 [coin_account](../database/coin_account.md);提现单 [withdraw_order](../database/withdraw_order.md);比价记录 [comparison_record](../database/comparison_record.md);反馈 [feedback](../database/feedback.md)。