- Add /v1/admin/status endpoint for system status
- Add /v1/blockchain/status endpoint for blockchain status
- Add /v1/blockchain/sync-status endpoint for sync status
- Add /v1/monitor/dashboard endpoint for monitoring dashboard
- Fix router imports and missing dependencies
- Handle optional dependencies gracefully (torch, tenseal)
- Update admin router with comprehensive system status endpoint
- Fix blockchain router endpoint paths
- Improve error handling in monitoring dashboard
These endpoints resolve CLI 404/405 errors reported in testing.