Module termination 

Shared termination/intent model for mecha10 dev’s interactive TUI screens.

Gives every screen a consistent answer for “what does this key mean” and installs a single shared Ctrl+C handler.

Enums

ScreenOutcome

TerminationIntent

Functions

classify_key

Classify a key event into a TerminationIntent, if it is one.

install_quit_signal

Install a single process-wide Ctrl+C handler and return the shared “keep running” flag it clears on signal. Safe to call more than once; only the first call registers the handler.