pos changes

lib/presentation/pos/widgets/admin_pin_dialog.dart

@@ -5,16 +5,18 @@ import '../../../app/providers.dart';
 import '../../../core/theme/app_colors.dart';
 import '../../../core/theme/app_dimens.dart';
 import '../../../core/widgets/numeric_keypad.dart';
-import '../../../domain/entities/store_account.dart';
 
-/// Prompts for an admin PIN before a theft-sensitive cart action — taking a
-/// scanned item back out of the bill, or clearing it — and resolves `true`
-/// only once a PIN belonging to an [StaffRole.admin] account is verified.
+/// Prompts for the removal PIN before taking a rung item back off a bill, and
+/// resolves `true` only once it verifies.
+///
+/// The PIN is the one an admin sets in Settings, and an admin's own staff PIN
+/// always works too — so a cashier can void a line at the counter without an
+/// admin walking over, and the owner is never locked out of their own till.
 ///
 /// A cashier can always start a brand new sale; what this exists to stop is
 /// quietly taking something back out of a bill a customer has already been
 /// shown, after it was rung up.
-Future<bool> requireAdminPin(
+Future<bool> requireVoidPin(
   BuildContext context,
   WidgetRef ref, {
   required String reason,
@@ -67,11 +69,11 @@ class _AdminPinDialogState extends ConsumerState<_AdminPinDialog> {
     });
 
     final store = ref.read(localStoreProvider);
-    final user = await store.staff.authenticate(_pin);
+    final ok = await store.voidPin.verify(_pin);
 
     if (!mounted) return;
 
-    if (user == null) {
+    if (!ok) {
       setState(() {
         _checking = false;
         _error = 'Incorrect PIN.';
@@ -80,16 +82,6 @@ class _AdminPinDialogState extends ConsumerState<_AdminPinDialog> {
       return;
     }
 
-    if (user.role != StaffRole.admin) {
-      setState(() {
-        _checking = false;
-        _error = "${user.name}'s PIN is ${user.role.label.toLowerCase()} — "
-            'this needs an admin.';
-        _pin = '';
-      });
-      return;
-    }
-
     Navigator.of(context).pop(true);
   }
 
@@ -112,7 +104,7 @@ class _AdminPinDialogState extends ConsumerState<_AdminPinDialog> {
                   const SizedBox(width: AppSpacing.sm),
                   const Expanded(
                     child: Text(
-                      'Admin PIN required',
+                      'Removal PIN required',
                       style: TextStyle(
                         fontSize: 16,
                         fontWeight: FontWeight.w700,