feat(core): add reasoning icon button (#11941)

Close [AI-58](https://linear.app/affine-design/issue/AI-58).

<!-- This is an auto-generated comment: release notes by coderabbit.ai -->

## Summary by CodeRabbit

- **New Features**
  - Introduced a toggleable AI reasoning feature in the chat interface, allowing users to enable or disable advanced reasoning during AI chat interactions.
  - Added a new reasoning button to the chat input for quick access and control.
- **Enhancements**
  - Improved chat configuration options to include reasoning settings, providing more flexibility for AI responses.
  - Streamlined network search and image upload interactions for a smoother user experience.

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

packages/frontend/core/src/components/hooks/affine/use-ai-chat-config.ts

@@ -1,5 +1,6 @@
 // packages/frontend/core/src/blocksuite/ai/hooks/useChatPanelConfig.ts
 import { AINetworkSearchService } from '@affine/core/modules/ai-button/services/network-search';
+import { AIReasoningService } from '@affine/core/modules/ai-button/services/reasoning';
 import { CollectionService } from '@affine/core/modules/collection';
 import { DocsService } from '@affine/core/modules/doc';
 import { DocDisplayMetaService } from '@affine/core/modules/doc-display-meta';
@@ -19,6 +20,7 @@ export function useAIChatConfig() {
   const framework = useFramework();
 
   const searchService = framework.get(AINetworkSearchService);
+  const reasoningService = framework.get(AIReasoningService);
   const docDisplayMetaService = framework.get(DocDisplayMetaService);
   const workspaceService = framework.get(WorkspaceService);
   const searchMenuService = framework.get(SearchMenuService);
@@ -33,6 +35,11 @@ export function useAIChatConfig() {
     setEnabled: searchService.setEnabled,
   };
 
+  const reasoningConfig = {
+    enabled: reasoningService.enabled,
+    setEnabled: reasoningService.setEnabled,
+  };
+
   const docDisplayConfig = {
     getIcon: (docId: string) => {
       return docDisplayMetaService.icon$(docId, { type: 'lit' }).value;
@@ -114,6 +121,7 @@ export function useAIChatConfig() {
 
   return {
     networkSearchConfig,
+    reasoningConfig,
     docDisplayConfig,
     searchMenuConfig,
   };