ansiStatus function
Colours a doctor status token: green = good, red = bad, yellow = anything
else (unknown / n/a). Returns token unchanged when color is false, so
callers stay plain in tests and pipes.
Implementation
String ansiStatus(String token, {required bool color}) {
if (!color) return token;
if (_goodTokens.contains(token)) return _c(_green, token, color: color);
if (_badTokens.contains(token)) return _c(_red, token, color: color);
return _c(_yellow, token, color: color);
}