fix(server): handle edge case of empty docs (#12608)

fix AI-130

packages/backend/server/src/plugins/copilot/context/job.ts

@@ -261,7 +261,7 @@ export class CopilotContextDocJob {
   ): Promise<DocFragment | null> {
     const docContent = await this.doc.getFullDocContent(workspaceId, docId);
     const authors = await this.models.doc.getAuthors(workspaceId, docId);
-    if (docContent?.summary && authors) {
+    if (docContent && authors) {
       const { title = 'Untitled', summary } = docContent;
       const { createdAt, updatedAt, createdByUser, updatedByUser } = authors;
       return {

tests/affine-cloud-copilot/e2e/basic/chat.spec.ts

@@ -28,7 +28,9 @@ test.describe('AIBasic/Chat', () => {
     await check.hover();
     const tooltip = await page.getByTestId('ai-chat-embedding-status-tooltip');
     await expect(tooltip).toBeVisible();
-    await expect(tooltip).toHaveText(/Results will improve after embedding/i);
+    await expect(tooltip).toHaveText(
+      /Results will improve after embedding|Embedding finished/
+    );
   });
 
   test(`should send message and receive AI response: