getAyahByUq method
Implementation
AyahModel getAyahByUq(int ayahUqNumber) {
_buildAyahUqIndexIfNeeded();
final cached = _ayahByUqCache[ayahUqNumber];
if (cached != null) return cached;
final found = state.allAyahs.firstWhereOrNull(
(a) => a.ayahUQNumber == ayahUqNumber,
);
return found ?? AyahModel.empty();
}