Localization

Use LocalizableString for any user-visible text. Obtain instances from LocalizableStringFactory (service).

For LocalizableStringFactory:

• ptrl(text): translatable string

• ptrl(text, vararg args): translatable with placeholders (pairs name→value)

• ptrc(context, text, vararg args): context-aware translation to disambiguate

• pnotr(text): non-translatable technical strings (version numbers, URLs)