- Introduce `Transport` interface to abstract WebSocket and SSH
communication
- Add generic `Data` field to `AgentResponse` for streamlined future
endpoints
- Maintain backward compatibility with legacy hubs and agents using
typed fields
- Unify fetch operations (SMART, systemd, containers) under a single
`request` method
- Improve `RequestManager` with deadline awareness and legacy response
support
- Refactor agent response routing into dedicated `agent/response.go`
- Update version to 0.18.0-beta.2
- Add /smart route to view SMART data across all systems
- Store SMART devices in new smart_devices collection
- Auto-fetch SMART data when system first comes online
- Add refresh/delete actions per device with realtime updates
- Add navbar and command palette entries
