Telemetry

[singular0]

CMD_SEND_TELEMETRY_REQ (39) and PUSH_TELEMETRY_RESPONSE (0x8B) are unhandled: battery,
temperature and sensor values from a remote node.

coreletd does not implement this command, so it answers ERR_UNSUPPORTED_CMD over TCP while
working over BLE against firmware. Daemon work is a prerequisite for the TCP path.

Tasks:

• Send a telemetry request to a contact and route the push back to it.
• Decide where the answer is displayed, and whether it is stored.
• Handle the unsupported case cleanly rather than leaving a request outstanding.

Needs contacts for addressing.

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Needs #2 for addressing.