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/filetree-runtime.js

@@ -9,7 +9,12 @@ function fileTreeRowKind(row) {
 
 function fileTreeRowDocumentId(row) {
   if (!(row instanceof HTMLElement)) return '';
-  return String(row.getAttribute('data-document-id') || row.getAttribute('data-doc-id') || '').trim();
+  return String(
+    row.getAttribute('data-document-id')
+      || row.getAttribute('data-doc-id')
+      || row.getAttribute('data-owner-document-id')
+      || '',
+  ).trim();
 }
 
 function fileTreeRowAssetId(row, deps) {
@@ -98,6 +103,11 @@ function readWorkspacePathFromRow(row, deps) {
   var documentId = fileTreeRowDocumentId(row);
   var rowId = String(row.getAttribute('data-row-id') || '').trim();
   var rowKind = fileTreeRowKind(row);
+  if (!documentId && (rowKind === 'folder' || objectKind === 'index') && relativePath) {
+    documentId = 'local-dir:' + relativePath.replace(/^\/+/, '').split('/').map(function(segment) {
+      return encodeURIComponent(segment).replace(/%20/g, '~20');
+    }).join('~2F');
+  }
   var sourceKind = String(row.getAttribute('data-source-kind') || currentSourceKind() || '').trim();
   var rootUri = String(row.getAttribute('data-root-uri') || currentRootUri() || '').trim();
   return {