✨ feat(ai): 支持聊天附件解析并优化数据库对象操作

frontend/src/utils/aiMessagePayload.test.ts

@@ -75,4 +75,24 @@ describe('toAIRequestMessage', () => {
       images: ['data:image/png;base64,abc'],
     });
   });
+
+  it('appends extracted file attachment content to the user request payload', () => {
+    const payload = toAIRequestMessage(message({
+      role: 'user',
+      content: '帮我看附件',
+      attachments: [{
+        id: 'att-1',
+        name: 'report.md',
+        mimeType: 'text/markdown',
+        size: 24,
+        kind: 'markdown',
+        text: '# 周报\n收入下降',
+      }],
+    }));
+
+    expect(payload.content).toContain('帮我看附件');
+    expect(payload.content).toContain('<用户上传附件>');
+    expect(payload.content).toContain('report.md');
+    expect(payload.content).toContain('收入下降');
+  });
 });

frontend/src/utils/aiMessagePayload.ts

@@ -1,4 +1,5 @@
 import type { AIChatMessage, AIToolCall } from '../types';
+import { appendAIChatAttachmentsToContent } from '../components/ai/aiChatAttachments';
 
 export interface AIRequestMessage {
   role: AIChatMessage['role'];
@@ -12,7 +13,7 @@ export interface AIRequestMessage {
 export const toAIRequestMessage = (message: AIChatMessage): AIRequestMessage => {
   const payload: AIRequestMessage = {
     role: message.role,
-    content: message.content,
+    content: appendAIChatAttachmentsToContent(message.content, message.attachments),
   };
 
   if (message.images && message.images.length > 0) {