feat: enhance token usage tracking and history management

- Updated HTML assets for improved loading.
- Integrated token usage tracking in chat processing, appending usage details to transcripts.
- Enhanced OpenAIProvider to include usage data in chat completion responses.
- Implemented asynchronous retrieval of recent token usage history.
- Added utility functions for managing transcript files and parsing usage data.
- Updated UI components to reflect changes in usage status handling.
- Ensured consistent usage status definitions across the application.

electron/service/provider-api-service/index.ts

@@ -233,7 +233,8 @@ export const providerApiService = {
     return { success: true };
   },
 
-  getUsageHistory() {
-    return [] as any[];
+  async getUsageHistory(limit?: number) {
+    const { getRecentTokenUsageHistory } = await import('@electron/utils/token-usage');
+    return getRecentTokenUsageHistory(limit);
   },
 };