chore: release client-v1.0.69

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01YZ4DskSRKsSiheQonFtQvx

client/lib/widgets/order_row_actions.dart

@@ -23,6 +23,8 @@ List<Widget> buildOrderRowActions({
   required VoidCallback onSubmit,
   required VoidCallback onApprove,
   required VoidCallback onReject,
+  required VoidCallback onWithdraw,
+  bool isAdmin = false,
   List<Widget> afterPrint = const [],
 }) {
   TextButton btn(String text, Color color, VoidCallback onPressed, {Key? key}) =>
@@ -49,6 +51,11 @@ List<Widget> buildOrderRowActions({
       WriteGuard(
           child: btn('拒绝', AppTheme.danger, onReject,
               key: Key('btn_reject_$orderId'))),
+      // 撤回（审核中→草稿）仅管理员可见
+      if (isAdmin)
+        WriteGuard(
+            child: btn('撤回', AppTheme.accent, onWithdraw,
+                key: Key('btn_withdraw_$orderId'))),
     ],
   ];
 }