fix(web-ui): resolve relative markdown images in chat

src/web-ui/src/component-library/components/Markdown/Markdown.test.tsx

@@ -9,6 +9,7 @@ import { Markdown } from './Markdown';
 const mocks = vi.hoisted(() => ({
   getCurrentWorkspacePath: vi.fn(),
   revealInExplorer: vi.fn(),
+  readFileContent: vi.fn(),
   openExternal: vi.fn(),
   renderMath: vi.fn(),
 }));
@@ -19,7 +20,7 @@ vi.mock('../../../infrastructure/api', () => ({
   },
   workspaceAPI: {
     revealInExplorer: (...args: unknown[]) => mocks.revealInExplorer(...args),
-    readFileContent: vi.fn(),
+    readFileContent: (...args: unknown[]) => mocks.readFileContent(...args),
   },
   systemAPI: {
     openExternal: (...args: unknown[]) => mocks.openExternal(...args),
@@ -98,9 +99,11 @@ describe('Markdown file links', () => {
     onFileViewRequest = vi.fn();
     mocks.getCurrentWorkspacePath.mockReset();
     mocks.revealInExplorer.mockReset();
+    mocks.readFileContent.mockReset();
     mocks.openExternal.mockReset();
     mocks.renderMath.mockReset();
     mocks.getCurrentWorkspacePath.mockResolvedValue(EXAMPLE_WORKSPACE);
+    mocks.readFileContent.mockResolvedValue('cmVsdS1wbmc=');
   });
 
   afterEach(() => {
@@ -228,4 +231,24 @@ describe('Markdown file links', () => {
     expect(container.querySelector('[data-testid="markdown-math-renderer"]')).not.toBeNull();
     expect(mocks.renderMath).toHaveBeenCalledWith('Formula: $x + y$');
   });
+
+  it('loads relative markdown images from the provided base path', async () => {
+    await act(async () => {
+      root.render(
+        <Markdown
+          content={'![ReLU 图像](relu.png)'}
+          basePath={EXAMPLE_WORKSPACE}
+          onFileViewRequest={onFileViewRequest}
+        />,
+      );
+      await Promise.resolve();
+      await Promise.resolve();
+    });
+
+    const image = container.querySelector<HTMLImageElement>('img[alt="ReLU 图像"]');
+    expect(image).not.toBeNull();
+    expect(mocks.readFileContent).toHaveBeenCalledWith(`${EXAMPLE_WORKSPACE}/relu.png`);
+    expect(image?.src).toBe('data:image/png;base64,cmVsdS1wbmc=');
+    expect(mocks.getCurrentWorkspacePath).not.toHaveBeenCalled();
+  });
 });

src/web-ui/src/component-library/components/Markdown/Markdown.tsx

@@ -811,7 +811,7 @@ export const Markdown = React.memo<MarkdownProps>(({
   );
 
   useEffect(() => {
-    if (!needsWorkspacePathForLinks || currentWorkspacePath) {
+    if (!needsWorkspacePathForLinks || currentWorkspacePath || basePath) {
       return;
     }
 
@@ -830,7 +830,7 @@ export const Markdown = React.memo<MarkdownProps>(({
     return () => {
       cancelled = true;
     };
-  }, [currentWorkspacePath, needsWorkspacePathForLinks]);
+  }, [basePath, currentWorkspacePath, needsWorkspacePathForLinks]);
 
   const markdownFeatureProfile = useMemo(() => ({
     contentLength: markdownContent.length,
@@ -1319,7 +1319,7 @@ export const Markdown = React.memo<MarkdownProps>(({
     },
 
     img({ node: _node, ...props }: any) {
-      return <MarkdownImage {...props} basePath={basePath} />;
+      return <MarkdownImage {...props} basePath={basePath || currentWorkspacePath} />;
     },
 
     blockquote({ children }: any) {

src/web-ui/src/flow_chat/components/FlowTextBlock.tsx

@@ -73,7 +73,10 @@ export const FlowTextBlock = React.memo<FlowTextBlockProps>(({
     onTabOpen,
     onHttpLinkClick,
     onOpenVisualization,
+    activeSessionOverride,
   } = useFlowChatContext();
+  const markdownBasePath = activeSessionOverride?.workspacePath
+    || activeSessionOverride?.config?.workspacePath;
 
   // Normalize content to a string.
   const content = typeof textItem.content === 'string'
@@ -147,6 +150,7 @@ export const FlowTextBlock = React.memo<FlowTextBlockProps>(({
       {textItem.isMarkdown ? (
         <MarkdownRenderer
           content={displayContent}
+          basePath={markdownBasePath}
           // Pass the raw streaming flag (not the idle-gated
           // `isActivelyStreaming`) so the code-block render path inside
           // Markdown stays stable across bursty AI output. Otherwise