- Add agent log persistence layer with JSONL append/read and event emission in core store
- Add server-side SSE log streaming endpoint and REST route for fetching logs
- Create AgentLogViewer component and useAgentLogs hook for real-time log display
- Integrate log viewer into TaskDetailModal
- Fix pre-existing build and test errors
- Add dependencies field support to store updateTask method
- Wire dependencies through PATCH route and client API
- Add dependency editing UI (add/remove) to TaskDetailModal
- Pass tasks prop from App to TaskDetailModal for dependency picker
- Add tests for dependency CRUD in modal and API layer
- Set task status to 'failed' on execution failure in engine executor
- Add failed indicator styling on TaskCard component
- Add POST /tasks/:id/retry API endpoint and client function
- Add retry button in TaskDetailModal for failed tasks
- Add tests for failed indicator, retry endpoint, and modal behavior
- Convert fetchTaskDetail to async with explicit fetch call
- Add single retry attempt on failure (2 max attempts)
- Parse and throw server error message on final failure
