Flock::Cli::Commands::Dev
flock dev — build, run, and hot-reload: watches src/ + assets/, and on any change
rebuilds and restarts the game. Ctrl-C stops.
Constants
POLL = 0.3
TERM_GRACE = 2.seconds
Grace period after SIGTERM before escalating to SIGKILL, for children that trap or
ignore TERM (a hung game would otherwise block flock dev forever).