feat(client): 实时授权状态与会话失效处理

- 心跳读取 /auth/ping 回带的授权概况，直接刷新横幅/状态栏/只读门禁，省去单独轮询 /license/info
- 账号被停用/删除（401 USER_DISABLED）即强制重新登录
- 令牌持久化经串行队列 + 会话代号守卫，杜绝续期写入与登出交叉把失效 token 写回
- 写操作门禁（write_guard）+ 授权文案（license_copy）按 grace/readonly/locked 分阶段降级

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>

client/lib/screens/stock_out/stock_out_list_screen.dart

@@ -22,6 +22,7 @@ import '../../providers/tab_state_provider.dart';
 import '../../providers/product_provider.dart';
 import '../../providers/finance_provider.dart' show financeRepositoryProvider;
 import '../../widgets/write_guard.dart';
+import '../../widgets/order_row_actions.dart';
 
 class StockOutListScreen extends ConsumerStatefulWidget {
   const StockOutListScreen({super.key});
@@ -312,18 +313,20 @@ class _StockOutListScreenState extends ConsumerState<StockOutListScreen> {
             );
 
         final newBtn = (showNewButton && !WriteGuard.isReadonly(ref))
-            ? ElevatedButton.icon(
-                onPressed: () => context.go('/stock-out/new'),
-                icon: const Icon(Icons.add, size: 16),
-                label: Text(isMobile ? '新建' : '新建出库审核单'),
-                style: isMobile
-                    ? ElevatedButton.styleFrom(
-                        padding: const EdgeInsets.symmetric(
-                            horizontal: 10, vertical: 6),
-                        minimumSize: Size.zero,
-                        tapTargetSize: MaterialTapTargetSize.shrinkWrap,
-                      )
-                    : null,
+            ? WriteGuard(
+                child: ElevatedButton.icon(
+                  onPressed: () => context.go('/stock-out/new'),
+                  icon: const Icon(Icons.add, size: 16),
+                  label: Text(isMobile ? '新建' : '新建出库审核单'),
+                  style: isMobile
+                      ? ElevatedButton.styleFrom(
+                          padding: const EdgeInsets.symmetric(
+                              horizontal: 10, vertical: 6),
+                          minimumSize: Size.zero,
+                          tapTargetSize: MaterialTapTargetSize.shrinkWrap,
+                        )
+                      : null,
+                ),
               )
             : null;
 
@@ -425,61 +428,24 @@ class _StockOutListScreenState extends ConsumerState<StockOutListScreen> {
 
   /// 操作按钮列表，表格与移动端卡片共用。
   List<Widget> _orderActions(BuildContext context, StockOutOrder o) {
-    final readonly = WriteGuard.isReadonly(ref);
-    return [
-      TextButton(
-        onPressed: () => _showDetail(context, o.id),
-        child: const Text('详情',
-            style: TextStyle(fontSize: 12, color: AppTheme.primary)),
-      ),
-      TextButton(
-        onPressed: () async {
-          final order = await ref.read(stockOutRepositoryProvider).get(o.id);
-          if (context.mounted) {
-            await safePrint(context, () => printStockOutOrder(order));
-          }
-        },
-        child: const Text('打印',
-            style: TextStyle(fontSize: 12, color: AppTheme.primary)),
-      ),
-      if (!readonly && o.status == 'approved')
-        TextButton(
-          onPressed: () => _confirmSettle(context, o.id, 'stock_out'),
-          child: const Text('结清',
-              style: TextStyle(fontSize: 12, color: AppTheme.accent)),
-        ),
-      if (!readonly && o.status == 'draft') ...[
-        TextButton(
-          onPressed: () => context.go('/stock-out/edit/${o.id}'),
-          child: const Text('修改',
-              style: TextStyle(fontSize: 12, color: AppTheme.primary)),
-        ),
-        TextButton(
-          onPressed: () => _confirmDelete(context, o),
-          child: const Text('删除',
-              style: TextStyle(fontSize: 12, color: AppTheme.danger)),
-        ),
-        TextButton(
-          onPressed: () => _confirmSubmit(context, o),
-          child: const Text('提交',
-              style: TextStyle(fontSize: 12, color: AppTheme.primary)),
-        ),
-      ],
-      if (!readonly && o.status == 'pending') ...[
-        TextButton(
-          key: Key('btn_approve_${o.id}'),
-          onPressed: () => _confirmApprove(context, o),
-          child: const Text('通过',
-              style: TextStyle(fontSize: 12, color: AppTheme.success)),
-        ),
-        TextButton(
-          key: Key('btn_reject_${o.id}'),
-          onPressed: () => _confirmReject(context, o),
-          child: const Text('拒绝',
-              style: TextStyle(fontSize: 12, color: AppTheme.danger)),
-        ),
-      ],
-    ];
+    return buildOrderRowActions(
+      readonly: WriteGuard.isReadonly(ref),
+      status: o.status,
+      orderId: o.id,
+      onDetail: () => _showDetail(context, o.id),
+      onPrint: () async {
+        final order = await ref.read(stockOutRepositoryProvider).get(o.id);
+        if (context.mounted) {
+          await safePrint(context, () => printStockOutOrder(order));
+        }
+      },
+      onSettle: () => _confirmSettle(context, o.id, 'stock_out'),
+      onEdit: () => context.go('/stock-out/edit/${o.id}'),
+      onDelete: () => _confirmDelete(context, o),
+      onSubmit: () => _confirmSubmit(context, o),
+      onApprove: () => _confirmApprove(context, o),
+      onReject: () => _confirmReject(context, o),
+    );
   }
 
   /// 出库单：窄屏卡片