[TODO] Research installing signal handlers for the interruption flow

[webknjaz]

I think that reacting to SIGINT, or SIGBREAK / CTRL_C_EVENT / CTRL_BREAK_EVENT for Windows, would be more predictable than CPython's default handler that throws a KeyboardInterrupt in arbitrary moments in time.
While on it, looking into handling SIGTSTP / SIGCONT could be useful as well.

A related thought: should the server interruption flow raise a CherrotServerInterrupt, inherited from something like InterruptedError (or KeyboardInterrupt)?

Refs:

• https://stackoverflow.com/a/22916853/595220
• https://docs.python.org/3/library/signal.html#handlers-and-exceptions
• https://davidhamann.de/2022/09/29/handling-signals-in-python/
• https://stackoverflow.com/q/11886812/595220