fix: 优化markdown解析器

apps/desktop/src/components/EnhancedMarkdownRenderer.tsx

@@ -102,7 +102,8 @@ export const EnhancedMarkdownRenderer: React.FC<EnhancedMarkdownRendererProps> =
     // 计算节点在原始文本中的字节偏移位置（与grounding数据的字节偏移匹配）
     const nodeStartOffset = node.range?.start?.byte_offset || 0;
     const nodeEndOffset = node.range?.end?.byte_offset || 0;
-
+    const nodeStartOffset1 = node.range?.start?.offset || 0;
+    const nodeEndOffset1 = node.range?.end?.offset || 0;
     // 查找与当前节点位置重叠的grounding支持信息
     const relatedSupports = groundingMetadata.grounding_supports.filter(support => {
       // grounding数据使用字节偏移
@@ -116,7 +117,9 @@ export const EnhancedMarkdownRenderer: React.FC<EnhancedMarkdownRendererProps> =
     console.log({
       relatedSupports,
       nodeStartOffset,
-      nodeEndOffset
+      nodeEndOffset,
+      nodeStartOffset1,
+      nodeEndOffset1
     })
     if (relatedSupports.length > 0) {
       // 获取相关的来源信息