收口 MNote P0 P1 P2 审查尾项

- 归档 OnlyOffice live bridge、Page AI、mindmap、design governance 与相关 bug 条目
- 补齐 MinerU OCR 后端 runtime 合同与 smoke/test 基线
- 收口 ChatOnly/Doubao、ObjectIdentity、Page Aggregate compat 与 runtime owner 文档口径

验证：
- cargo test --manifest-path rust/Cargo.toml -p mnote-web local_ocr -- --test-threads=1
- cargo test --manifest-path rust/Cargo.toml -p mnote-web onlyoffice_bridge -- --test-threads=1
- git diff --check
- git diff --cached --check
- codegraph index . --force && codegraph status .
- codegraph sync . && codegraph status .

rust/crates/mnote-web/browser/sidebar-filetree-open-runtime.js

@@ -410,7 +410,7 @@ export const createSidebarFileTreeOpenRuntime = (dependencies = {}) => {
         navigateToMindmapObject(String(detail && detail.documentId || currentDocumentId() || '').trim(), assetId, String(detail.workspaceId || '').trim());
         return;
       }
-      var requestedOfficeMode = forceNewWindow || forceEditMode ? 'edit' : 'view';
+      var requestedOfficeMode = forceEditMode ? 'edit' : 'view';
       var localOfficeUrl = buildLocalOnlyOfficeOpenUrl(localFilePath, localFileName, String(detail && detail.documentId || currentDocumentId() || '').trim(), assetId, requestedOfficeMode);
       if (localOfficeUrl) {
         if (!forceNewWindow && await openLocalResourceInActiveTab({