Decouple listening from consuming as the first step toward a full MeshCore
client. A new always-on EventHub owns the single device subscription and fans
typed MeshEvents out to any number of subscribers; passive-monitor history
logging becomes just one subscriber, so listening is now unconditional while the
on/off toggle controls only persistence.
- core/events.py: MeshEvent envelope + EventKind (OBSERVATION/MESSAGE/ACK)
- services/event_hub.py: subscribe/stream/wait_for fan-out, always-on pump
- connection.py: Device.subscribe_observations -> unified subscribe_events
emitting observations, inbound messages, and acks; add message_from_event /
ack_from_event mappers and a simulated message stream on MockDevice
- core/models.py: Message and Ack domain models
- monitor_service.py: slim to a hub subscriber (recording, not listening)
- context.py/menu.py: wire ctx.events into the session lifecycle
- config.py: connect_on_start setting (default on) to allow lazy connect
- Remove monitor --seconds / foreground capture and Device.listen; monitoring
is passive/background only
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>