feat(core): add ai tool call error type and ui (#12941)

<img width="775" alt="截屏2025-06-26 16 17 05"
src="https://github.com/user-attachments/assets/ed6bcae3-94af-4eb1-81e8-710f36ef5e46"
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<!-- This is an auto-generated comment: release notes by coderabbit.ai
-->

## Summary by CodeRabbit

* **New Features**
  * Introduced a tool to crawl web pages and extract key information.
* Added a visual component to display tool call failures in the AI
interface.
* Enhanced error reporting for document and web search tools with
structured error messages.

* **Improvements**
* Updated error handling across AI tools and components for more
consistent and informative feedback.
* Default values added for tool card components to improve reliability
and display.

* **Bug Fixes**
* Improved handling of error and empty states in web crawl and web
search result displays.

<!-- end of auto-generated comment: release notes by coderabbit.ai -->

packages/backend/server/src/plugins/copilot/tools/doc-semantic-search.ts

@@ -5,6 +5,7 @@ import type { AccessController } from '../../../core/permission';
 import type { ChunkSimilarity } from '../../../models';
 import type { CopilotContextService } from '../context';
 import type { CopilotChatOptions } from '../providers';
+import { toolError } from './error';
 
 export const buildDocSearchGetter = (
   ac: AccessController,
@@ -46,8 +47,8 @@ export const createDocSemanticSearchTool = (
     execute: async ({ query }) => {
       try {
         return await searchDocs(query);
-      } catch {
-        return 'Failed to search documents.';
+      } catch (e: any) {
+        return toolError('Doc Semantic Search Failed', e.message);
       }
     },
   });