bccff232fe
validatePersonFields now returns a PersonValidationKey instead of a hardcoded German string. resolveValidationMessage() translates the key through Paraglide so English and Spanish locale users no longer see German error text. Adds validation_last_name_required and validation_first_name_required to all three message files. Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>