test: add complete iOS MVP business suite

mobile/lib/core/forms/presentation/dynamic_form_card.dart

@@ -98,6 +98,7 @@ class DynamicFormCard extends StatelessWidget {
         onChanged: (value) => onChanged(control.field, value),
       ),
       FormControlType.dateTime => _DateTimeControl(
+        key: ValueKey(control.field),
         label: label,
         value: state.values[control.field] as String?,
         errorText: error,
@@ -109,6 +110,7 @@ class DynamicFormCard extends StatelessWidget {
 
 class _DateTimeControl extends StatelessWidget {
   const _DateTimeControl({
+    super.key,
     required this.label,
     required this.value,
     required this.errorText,