refactor(client): widgets 颜色迁移到 context.tokens

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

client/lib/widgets/order_row_actions.dart

@@ -1,6 +1,6 @@
 import 'package:flutter/material.dart';
 
-import '../core/theme/app_theme.dart';
+import '../core/theme/context_tokens.dart';
 import 'write_guard.dart';
 
 /// 入/出库单行内操作按钮，列表表格与移动端卡片、入库与出库两屏共用。
@@ -12,6 +12,7 @@ import 'write_guard.dart';
 ///   - [afterPrint]：紧随「打印」之后的附加按钮（入库的「打标签」；出库传空）。
 ///   - 各 `on*` 回调由调用方绑定到对应单据的确认/跳转逻辑。
 List<Widget> buildOrderRowActions({
+  required BuildContext context,
   required bool readonly,
   required String status,
   required int orderId,
@@ -56,32 +57,32 @@ List<Widget> buildOrderRowActions({
         ),
       );
   return [
-    btn('详情', AppTheme.primary, onDetail),
-    btn('打印', AppTheme.primary, onPrint),
+    btn('详情', context.tokens.primary, onDetail),
+    btn('打印', context.tokens.primary, onPrint),
     ...afterPrint,
     if (!readonly && status == 'approved')
-      WriteGuard(child: btn('结清', AppTheme.accent, onSettle)),
+      WriteGuard(child: btn('结清', context.tokens.accent, onSettle)),
     // 退单（已审核单退货）：红色实心按钮突出（与原型一致），按权限显示
     if (!readonly && status == 'approved' && canReturn)
       WriteGuard(
-          child: filledBtn('退单', AppTheme.danger, onReturn,
+          child: filledBtn('退单', context.tokens.danger, onReturn,
               key: Key('btn_return_$orderId'))),
     if (!readonly && status == 'draft') ...[
-      WriteGuard(child: btn('修改', AppTheme.primary, onEdit)),
-      WriteGuard(child: btn('删除', AppTheme.danger, onDelete)),
-      WriteGuard(child: btn('提交', AppTheme.primary, onSubmit)),
+      WriteGuard(child: btn('修改', context.tokens.primary, onEdit)),
+      WriteGuard(child: btn('删除', context.tokens.danger, onDelete)),
+      WriteGuard(child: btn('提交', context.tokens.primary, onSubmit)),
     ],
     if (!readonly && status == 'pending') ...[
       WriteGuard(
-          child: btn('通过', AppTheme.success, onApprove,
+          child: btn('通过', context.tokens.success, onApprove,
               key: Key('btn_approve_$orderId'))),
       WriteGuard(
-          child: btn('拒绝', AppTheme.danger, onReject,
+          child: btn('拒绝', context.tokens.danger, onReject,
               key: Key('btn_reject_$orderId'))),
       // 撤回（审核中→草稿）：管理员/超管任意单、操作员本人单可见，用 warn 样式
       if (canWithdraw)
         WriteGuard(
-            child: btn('撤回', AppTheme.warning, onWithdraw,
+            child: btn('撤回', context.tokens.warn, onWithdraw,
                 key: Key('btn_withdraw_$orderId'))),
     ],
   ];