@

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
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docs/api/user/user-delete.md

@@ -0,0 +1,18 @@
+# DELETE /api/v1/user — 注销账号
+
+> 所属:User 组（前缀 `/api/v1/user`） | 鉴权:Bearer access_token | [← 返回 API 索引](../README.md)
+
+## 入参
+无(身份取自 Header token)
+
+## 出参
+响应 `200`:`{ "ok": true }`
+
+## 错误码
+- `401` 未带 token / token 无效或过期 / 用户被禁用(已注销账号再次调返 401,因 `status=deleted` 不再 active)
+
+## 说明
+- **软删除 + 匿名化**:`status="deleted"` + `phone="deleted_<id>"`(释放 phone 唯一约束,允许同号码重新注册成全新账号)+ `nickname`/`avatar_url` 清空。行保留用于审计 / 关联表外键完整性
+- **头像文件物理删除**:本服务托管的头像文件(`/media/avatars/...`)同时删盘;微信头像等外部 URL 不动
+- **后续登录**:`status=deleted` 的行登录接口校验不过,所以"注销账号"后旧 token 仍能用直到自然过期(2h),但一过期就再也换不出新 token。客户端应在调本接口后立刻清本地 token
+- **未来若加 jti 黑名单**:本接口应同时把当前 access/refresh 加入黑名单实现"立即吊销"