feat(core): add ai workspace all docs switch (#13345)

Close [AI-397](https://linear.app/affine-design/issue/AI-397)

<img width="272" height="186" alt="截屏2025-07-29 11 54 20"
src="https://github.com/user-attachments/assets/e171fb57-66cf-4244-894d-c27b18cbe83a"
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<!-- This is an auto-generated comment: release notes by coderabbit.ai
-->
## Summary by CodeRabbit

* **New Features**
* Introduced an AI tools configuration service, allowing users to
customize AI tool usage (e.g., workspace search, reading docs) in chat
and AI features.
* Added a toggle in chat preferences for enabling or disabling
workspace-wide document search.
* AI chat components now respect user-configured tool settings across
chat, retry, and playground scenarios.

* **Improvements**
* Enhanced chat and AI interfaces to propagate and honor user tool
configuration throughout the frontend and backend.
* Made draft and tool configuration services optional and safely handled
their absence in chat components.
<!-- end of auto-generated comment: release notes by coderabbit.ai -->

packages/frontend/core/src/modules/index.ts

@@ -7,6 +7,7 @@ import {
   configureAINetworkSearchModule,
   configureAIPlaygroundModule,
   configureAIReasoningModule,
+  configureAIToolsConfigModule,
 } from './ai-button';
 import { configureAppSidebarModule } from './app-sidebar';
 import { configAtMenuConfigModule } from './at-menu-config';
@@ -112,6 +113,7 @@ export function configureCommonModules(framework: Framework) {
   configureAIPlaygroundModule(framework);
   configureAIButtonModule(framework);
   configureAIDraftModule(framework);
+  configureAIToolsConfigModule(framework);
   configureTemplateDocModule(framework);
   configureBlobManagementModule(framework);
   configureMediaModule(framework);