chore: align mvp design governance

- 统一 local-first MVP 后阶段架构口径，补充 process 执行总序和 Reasonix 协作记录

- 归档已完成的 design checklist，标注参考型 process，更新 AGENTS/REASONIX/架构文档

- 补充文件树/主编辑器下载与上下文菜单相关实现、bug 记录和 smoke 脚本

验证：git diff --check；codegraph sync .；cargo test -p mnote-web；node --check scripts/task476-filetree-editor-context-menu-download-smoke.js

design/10-review/process/12-sidex-vscode-workbench-gap-review-v1.md

@@ -1,6 +1,8 @@
 # 12 Sidex / VSCode Workbench 对照审查 v1
 
-> 状态：process
+> 状态：process-reference
+>
+> 归档说明（2026-05-21）：本 review 的 P0/P1/P2 缺口已拆分到 `4-*` / `5-*` 执行 checklist；本文保留为 Sidex / VSCode 对照原始证据，不再作为直接执行清单。
 >
 > 日期：2026-05-20
 >
@@ -96,27 +98,27 @@ local office 可进入主编辑区 tab，Convex office 仍可能新窗口；mind
 
 本 review 拆分为三份执行 checklist：
 
-- `design/05-editor-mainline/process/5-16-editor-group-resource-tab-safety-checklist-v1.md`
+- `design/05-editor-mainline/done/5-16-editor-group-resource-tab-safety-checklist-v1.md`
 - `design/04-tree-domain/process/4-38-filetree-resource-lifecycle-open-target-checklist-v1.md`
-- `design/05-editor-mainline/process/5-17-resource-editor-kind-and-smoke-matrix-checklist-v1.md`
+- `design/05-editor-mainline/done/5-17-resource-editor-kind-and-smoke-matrix-checklist-v1.md`
 
 第二轮 P0 收口继续拆为四份独立 checklist：
 
-- `design/05-editor-mainline/process/5-18-main-editor-tab-state-and-error-placeholder-checklist-v1.md`
-- `design/05-editor-mainline/process/5-19-resource-open-resolver-and-onlyoffice-checklist-v1.md`
-- `design/04-tree-domain/process/4-39-filetree-open-target-resource-identity-checklist-v1.md`
-- `design/04-tree-domain/process/4-40-resource-lifecycle-command-cutover-smoke-checklist-v1.md`
+- `design/05-editor-mainline/done/5-18-main-editor-tab-state-and-error-placeholder-checklist-v1.md`
+- `design/05-editor-mainline/done/5-19-resource-open-resolver-and-onlyoffice-checklist-v1.md`
+- `design/04-tree-domain/done/4-39-filetree-open-target-resource-identity-checklist-v1.md`
+- `design/04-tree-domain/done/4-40-resource-lifecycle-command-cutover-smoke-checklist-v1.md`
 
 第三轮继续收口剩余 P0，并在 P0 清零后推进相邻 P1：
 
-- `design/05-editor-mainline/process/5-20-resource-tab-close-confirm-checklist-v1.md`
-- `design/04-tree-domain/process/4-41-filetree-bulk-resource-command-cutover-v1.md`
-- `design/04-tree-domain/process/4-42-filetree-open-target-rooturi-contract-v1.md`
-- `design/05-editor-mainline/process/5-21-editor-tab-url-active-identity-checklist-v1.md`
+- `design/05-editor-mainline/done/5-20-resource-tab-close-confirm-checklist-v1.md`
+- `design/04-tree-domain/done/4-41-filetree-bulk-resource-command-cutover-v1.md`
+- `design/04-tree-domain/done/4-42-filetree-open-target-rooturi-contract-v1.md`
+- `design/05-editor-mainline/done/5-21-editor-tab-url-active-identity-checklist-v1.md`
 
 第四轮进入 P1，按 editor workbench 语义继续拆分：
 
-- `design/04-tree-domain/process/4-43-local-folder-sort-order-persistence-v1.md`
-- `design/05-editor-mainline/process/5-22-mindmap-main-editor-tab-kind-v1.md`
-- `design/05-editor-mainline/process/5-23-editor-side-target-secondary-pane-v1.md`
+- `design/04-tree-domain/done/4-43-local-folder-sort-order-persistence-v1.md`
+- `design/05-editor-mainline/done/5-22-mindmap-main-editor-tab-kind-v1.md`
+- `design/05-editor-mainline/done/5-23-editor-side-target-secondary-pane-v1.md`
 - `design/04-tree-domain/process/4-44-filetree-action-layer-paste-drop-delete-v1.md`