docs: finalize preservation migration acceptance

ARCHITECTURE.md

@@ -1,8 +1,9 @@
 # Candidate architecture
 
-`app/` is the behavior-preserving modular candidate. The original `webapp/` runtime remains
-the product and visual baseline until manual acceptance. `next/` is a rejected, frozen
-implementation and is not a source for this directory.
+`app/` is the behavior-preserving modular source tree accepted by the user on 2026-08-01.
+The original `webapp/` runtime remains the deployment rollback baseline until an explicitly
+approved switch. `next/` is a rejected, frozen implementation and is not a source for this
+directory.
 
 The application deliberately remains a modular monolith: one Python process, one SQLite WAL
 database, and a build-free HTML/CSS/JavaScript client. The migration changed source ownership

README.md

@@ -2,9 +2,9 @@
 
 一个面向 A 股盘后复盘的本地 Web 工作台。后端使用 Python 访问 Tushare Pro，前端不依赖构建工具。
 
-本目录是从原版源码逐项移动、机械拆分并完成差分验证的模块化候选，不是依据规格书重新开发的
-第二套产品。人工验收和正式切换前，`webapp/`根目录仍是唯一正式基线；冻结的`next/`不得用于
-部署或后续开发。目录职责见[ARCHITECTURE.md](ARCHITECTURE.md)。
+本目录是从原版源码逐项移动、机械拆分并完成差分验证与用户人工验收的模块化正式源码，
+不是依据规格书重新开发的第二套产品。正式部署切换前，`webapp/`根目录继续作为当前部署与
+回档基线；冻结的`next/`不得用于部署或后续开发。目录职责见[ARCHITECTURE.md](ARCHITECTURE.md)。
 
 当前包含集合竞价、涨停池、炸板池、跌停板、昨日涨停、涨停表现、市场天梯、板块轮动、题材库、人气热榜、龙虎榜和个人复盘工作区。交易日快照与同步记录保存在本地 SQLite 数据库 `data/review.db`。