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/document-tiptap-conversion-runtime.js

@@ -15,6 +15,18 @@ export const firstNonEmptyText = (...values) => {
   return '';
 };
 
+export const normalizeMindmapDimension = (value, kind) => {
+  const raw = typeof value === 'number'
+    ? value
+    : typeof value === 'string'
+      ? Number(value.trim().replace(/px$/i, ''))
+      : NaN;
+  if (!Number.isFinite(raw)) return null;
+  const rounded = Math.round(raw);
+  const min = kind === 'height' ? 240 : 900;
+  return rounded >= min ? rounded : null;
+};
+
 // 过渡适配（TODO step-4）：legacy→Tiptap inline marks 转换函数组。
 // AST/block 迁移 complete 后，前端应直接消费 block document 中的
 // tiptap 格式 marks（已由 Rust 侧 local_markdown_parser 输出），
@@ -125,19 +137,26 @@ export const legacyBlockToTiptap = (block, index = 0) => {
   }
   if (type === 'divider' || type === 'horizontalRule' || type === 'horizontal_rule') return { type: 'horizontalRule', attrs: { blockId } };
   if (type === 'mindmap') {
+    const attrs = block?.attrs && typeof block.attrs === 'object' ? block.attrs : null;
     const data = block?.props?.data && typeof block.props.data === 'object' ? block.props.data : null;
     const mindmapId = firstNonEmptyText(
       block?.props?.mindmapId,
       block?.props?.mindmap_id,
       block?.props?.sourcePath,
       block?.props?.source_path,
+      attrs?.mindmapId,
+      attrs?.mindmap_id,
+      attrs?.sourcePath,
+      attrs?.source_path,
       block?.mindmapId,
       block?.mindmap_id,
       data?.mindmapId,
       data?.mindmap_id,
       data?.id
     );
-    const rootNodeId = firstNonEmptyText(block?.props?.rootNodeId, block?.props?.root_node_id, data?.rootNodeId, data?.root_node_id) || 'root';
+    const rootNodeId = firstNonEmptyText(block?.props?.rootNodeId, block?.props?.root_node_id, attrs?.rootNodeId, attrs?.root_node_id, data?.rootNodeId, data?.root_node_id) || 'root';
+    const mindmapWidth = normalizeMindmapDimension(block?.props?.mindmapWidth ?? block?.props?.mindmap_width ?? attrs?.mindmapWidth ?? attrs?.mindmap_width ?? data?.mindmapWidth ?? data?.mindmap_width, 'width');
+    const mindmapHeight = normalizeMindmapDimension(block?.props?.mindmapHeight ?? block?.props?.mindmap_height ?? attrs?.mindmapHeight ?? attrs?.mindmap_height ?? data?.mindmapHeight ?? data?.mindmap_height, 'height');
     return {
       type: 'paragraph',
       attrs: withTextAlign({
@@ -145,6 +164,8 @@ export const legacyBlockToTiptap = (block, index = 0) => {
         mnoteBlockType: 'mindmap',
         mindmapId,
         rootNodeId,
+        ...(mindmapWidth !== null ? { mindmapWidth } : {}),
+        ...(mindmapHeight !== null ? { mindmapHeight } : {}),
       }),
     };
   }
@@ -225,7 +246,9 @@ export const mindmapDomDescriptors = (root) => {
       const rootNodeId = typeof node.dataset.mnoteRootNodeId === 'string' && node.dataset.mnoteRootNodeId.trim()
         ? node.dataset.mnoteRootNodeId.trim()
         : 'root';
-      return [{ mindmapId, rootNodeId }];
+      const mindmapWidth = normalizeMindmapDimension(node.dataset.mnoteMindmapWidth, 'width');
+      const mindmapHeight = normalizeMindmapDimension(node.dataset.mnoteMindmapHeight, 'height');
+      return [{ mindmapId, rootNodeId, mindmapWidth, mindmapHeight }];
     });
 };
 
@@ -246,6 +269,12 @@ export const hydrateMindmapAttrsFromDom = (tiptapDocument, root) => {
     if (typeof node.attrs.rootNodeId !== 'string' || !node.attrs.rootNodeId.trim()) {
       node.attrs.rootNodeId = descriptor.rootNodeId;
     }
+    if (normalizeMindmapDimension(node.attrs.mindmapWidth, 'width') === null && descriptor.mindmapWidth !== null) {
+      node.attrs.mindmapWidth = descriptor.mindmapWidth;
+    }
+    if (normalizeMindmapDimension(node.attrs.mindmapHeight, 'height') === null && descriptor.mindmapHeight !== null) {
+      node.attrs.mindmapHeight = descriptor.mindmapHeight;
+    }
   }
   return tiptapDocument;
 };
@@ -445,20 +474,17 @@ export const localizeTiptapAssetUrls = (node, context) => {
 };
 
 export const pageBodyTiptapDocumentSource = (body, fallbackText = '') => {
+  const blockDocument = body?.blockDocument || body?.block_document || body?.editorDocument || body?.editor_document || null;
+  if (blockDocument) return 'page_aggregate.block_document';
   if (String(body?.projectionSource || body?.projection_source || '') === 'local_markdown.content' && body?.content) {
     return 'local_markdown.content';
   }
-  const blockDocument = body?.blockDocument || body?.block_document || body?.editorDocument || body?.editor_document || null;
-  if (blockDocument) return 'page_aggregate.block_document';
   if (body?.content) return 'compat.legacy_content';
   return fallbackText ? 'degraded.fallback_text' : 'empty';
 };
 
 export const pageBodyTiptapDocument = (body, fallbackText = '', context = null) => {
   const projectionContext = { ...(context || {}), body };
-  if (pageBodyTiptapDocumentSource(body, fallbackText) === 'local_markdown.content') {
-    return localizeTiptapAssetUrls(toTiptapDocument(body.content, fallbackText), projectionContext);
-  }
   const blockDocument = body?.blockDocument || body?.block_document || body?.editorDocument || body?.editor_document || null;
   if (blockDocument) return localizeTiptapAssetUrls(toTiptapDocument(blockDocument, fallbackText), projectionContext);
   return localizeTiptapAssetUrls(toTiptapDocument(body?.content, fallbackText), projectionContext);
@@ -533,10 +559,14 @@ export const mindmapPropsFromAttrs = (attrs, fallbackMindmapId) => {
   );
   const rootNodeId = firstNonEmptyText(attrs?.rootNodeId, attrs?.root_node_id, data?.rootNodeId, data?.root_node_id) || 'root';
   const projectionVersion = Number(attrs?.projectionVersion ?? attrs?.projection_version);
+  const mindmapWidth = normalizeMindmapDimension(attrs?.mindmapWidth ?? attrs?.mindmap_width ?? data?.mindmapWidth ?? data?.mindmap_width, 'width');
+  const mindmapHeight = normalizeMindmapDimension(attrs?.mindmapHeight ?? attrs?.mindmap_height ?? data?.mindmapHeight ?? data?.mindmap_height, 'height');
   return {
     mindmapId,
     rootNodeId,
     ...(Number.isFinite(projectionVersion) ? { projectionVersion } : {}),
+    ...(mindmapWidth !== null ? { mindmapWidth } : {}),
+    ...(mindmapHeight !== null ? { mindmapHeight } : {}),
   };
 };