- Added QueueSchedulerService to manage task queue lifecycle, including state machine, dependency resolution, and session management.
- Implemented HTTP API endpoints for queue scheduling:
- POST /api/queue/execute: Submit items to the scheduler.
- GET /api/queue/scheduler/state: Retrieve full scheduler state.
- POST /api/queue/scheduler/start: Start scheduling loop with items.
- POST /api/queue/scheduler/pause: Pause scheduling.
- POST /api/queue/scheduler/stop: Graceful stop of the scheduler.
- POST /api/queue/scheduler/config: Update scheduler configuration.
- Introduced types for queue items, scheduler state, and WebSocket messages to ensure type safety and compatibility with the backend.
- Added static model lists for LiteLLM as a fallback for available models.
