Enhance DynamicIsland component for AI pack generation with job management and progress tracking

Commit notes

- Integrated API client for creating generation jobs and monitoring progress via Server-Sent Events (SSE). - Added state management for job ID, current step, and total steps to provide real-time feedback during pack generation. - Implemented error handling and progress updates in the UI to improve user experience. - Refactored API methods to support asynchronous job processing and status retrieval. - Updated backend to handle job creation, status tracking, and SSE for real-time updates.