[daemon] write a listener daemon to monitor a question queue

[signebedi]

write a listener daemon to monitor a question queue
It may make sense to daemonize a listener interface that synchronously processes questions in a spool file. Potentially, then, the chat client runs its request asynchronously and awaits a response from the listener daemon.

Originally posted by @signebedi in #17 (comment)

[signebedi]

It will be worth asking how this will work with pypi installations. I think that a daemon interface should be configurable in gptty.ini (see example below) but the runtime should fall back on its own synchronous function set if no daemon is provided.

[main]
enable_daemon=1
daemon_host=localhost
daemon_port=9214

[signebedi]

I'm imagining we run this as a systemd service... is there an easy way to do so using gptty? For example, we maybe create a click command gptty serve --host localhost --port 9214 that runs listener server. Or, we optionally run it with a --daemonize tag so it doesn't expect to be in the foreground. Then, we provide a systemd example in assets/...