- Fix#11: Guard bcopy/bzero declarations with _VISUALCPP in commoninclude.h
to avoid redefinition errors on macOS where <strings.h> provides them
- Fix#12: Add --host flag to serve command, default 127.0.0.1
Docker now binds to 0.0.0.0 so Colima can reach the server from host
- Also fix truncate() panic when n < 3