diff --git a/_AI_USAGE_LOG.md b/_AI_USAGE_LOG.md
index 844d0b7..2387b43 100644
--- a/_AI_USAGE_LOG.md
+++ b/_AI_USAGE_LOG.md
@@ -148,3 +148,7 @@
 | 2026-08-30 18:00 | Agent 实现 | chat.css 视觉重塑为深色主题（spec §一+§二 全部落地） | src/genesis/server/static/chat.css | minimax/minimax-m3:free |
 | 2026-08-30 19:00 | 反馈迭代 | 同步 docs/design.md 前端 UI 设计规范章节 | docs/design.md, _AI_USAGE_LOG.md | minimax/minimax-m3:free |
 | 2026-08-31 04:30 | Agent 实现 | 拆分 chat.html 内联 JS 到 chat.js（670 行 UI 业务逻辑恢复）+ 折叠按钮改到侧边栏内下边 + 图标/标题随状态切换 | src/genesis/server/static/chat.js, chat.html, chat.css, _AI_USAGE_LOG.md | minimax/minimax-m3:free |
+| 2026-09-12 14:27 | 反馈迭代 | 新增会话重命名后端 PATCH /api/sessions/{sid} + service.rename_session + 3 测试 | src/genesis/server/app.py; src/genesis/server/service.py; tests/test_server_api.py | deepseek-chat |
+| 2026-09-12 14:36 | 架构设计 | 豆包式布局设计文档+实施计划 | docs/superpowers/specs/2026-09-12-doubao-layout-design.md; docs/superpowers/plans/2026-09-12-doubao-layout.md | deepseek-chat |
+| 2026-09-12 14:36 | Agent 实现 | 前端豆包式布局：顶栏会话名/空态主标题/底部工具栏/建议卡填入/历史项⋯重命名/上传去zip；chat_state 新增 emptyHeadline+quickPrompts | chat.html; chat.css; chat.js; chat_state.js; tests/test_chat_state.js | deepseek-chat |
+| 2026-09-12 14:36 | 测试验证 | 修正陈旧静态路由测试改走 /static；全套 622 passed 覆盖 99.11% | tests/test_frontend_audit_fixes.py; tests/test_progress_e2e.py | deepseek-chat |