feat: extend boxing page for accessory boxing support

Add pending accessories section to both single-code and multi-code boxing
modes. Accessories display with orange styling and a "加入本箱" button that
calls saveBoxRecord with item_type=accessory. Extend API service with
PendingAccessory model, itemType fields on data classes, and optional
accessory_id parameter on saveBoxRecord. Show accessories with visual
indicator (wrench icon + orange background) in boxing detail page.

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

lib/pages/boxing/boxing_api_actions.dart

@@ -65,6 +65,8 @@ class BoxingApiActions {
     required String zongpaiNo,
     required int boxNo,
     required int quantity,
+    String itemType = 'product',
+    int? accessoryId,
   }) async {
     final baseUrl = await _requireBaseUrl();
     if (baseUrl == null) return _missingApiUrl();
@@ -74,6 +76,8 @@ class BoxingApiActions {
       zongpaiNo: zongpaiNo,
       boxNo: boxNo,
       quantity: quantity,
+      itemType: itemType,
+      accessoryId: accessoryId,
     );
     return _saveResult(result, fallbackMessage: '提交失败');
   }

lib/pages/boxing/parts/boxing_scan_part.dart

@@ -74,6 +74,7 @@ extension _BoxingScanPart on _BoxingPageState {
       _currentZongpaiBoxes = result.currentZongpaiBoxes;
       _existingBoxes = result.existingBoxes;
       _maxBoxNo = result.maxBoxNo;
+      _pendingAccessories = result.pendingAccessories;
       _phase = BoxingPhase.scanned;
       _isDuplicateBoxNo = false;
       _editingBox = null;

lib/pages/boxing/parts/boxing_submit_part.dart

@@ -158,4 +158,47 @@ extension _BoxingSubmitPart on _BoxingPageState {
       const Duration(milliseconds: 1500),
     );
   }
+
+  Future<void> _submitAccessory(PendingAccessory accessory) async {
+    if (_zongpaiNo == null || _isSubmitting) return;
+
+    final boxNo = int.tryParse(_boxNoController.text);
+    if (boxNo == null || boxNo <= 0) {
+      this._showStatusOverride(
+        '请先输入有效箱号',
+        StatusDotColor.red,
+        const Duration(seconds: 2),
+      );
+      return;
+    }
+
+    setState(() => _isSubmitting = true);
+
+    final action = await _apiActions.saveBoxRecord(
+      zongpaiNo: _zongpaiNo!,
+      boxNo: boxNo,
+      quantity: accessory.quantity,
+      itemType: 'accessory',
+      accessoryId: accessory.accessoryId,
+    );
+
+    if (!mounted) return;
+
+    setState(() => _isSubmitting = false);
+
+    if (action.success) {
+      _feedbackService.trigger(FeedbackEvent.submitSuccess);
+      // Refresh box info to update pending accessories
+      await this._queryBoxInfo(_zongpaiNo!);
+      if (mounted) {
+        this._showStatusOverride(
+          '${accessory.accessoryType} 已加入箱号 $boxNo',
+          StatusDotColor.green,
+          const Duration(milliseconds: 1500),
+        );
+      }
+    } else {
+      this._showActionError(action, fallback: '附件装箱失败');
+    }
+  }
 }

lib/pages/boxing/widgets/multi_code_body.dart

@@ -36,6 +36,8 @@ class MultiCodeBody extends StatelessWidget {
   final ValueChanged<ManyToOnePackedItem> onStartDeletePackedItem;
   final ValueChanged<ManyToOnePackedItem> onDeletePackedItem;
   final VoidCallback onCancelDeletePackedItem;
+  final List<PendingAccessory> pendingAccessories;
+  final ValueChanged<PendingAccessory> onSubmitAccessory;
 
   const MultiCodeBody({
     super.key,
@@ -69,6 +71,8 @@ class MultiCodeBody extends StatelessWidget {
     required this.onStartDeletePackedItem,
     required this.onDeletePackedItem,
     required this.onCancelDeletePackedItem,
+    required this.pendingAccessories,
+    required this.onSubmitAccessory,
   });
 
   @override
@@ -87,7 +91,7 @@ class MultiCodeBody extends StatelessWidget {
         ),
         const _MultiListHeader(),
         Expanded(
-          child: visibleItems.isEmpty
+          child: visibleItems.isEmpty && pendingAccessories.isEmpty
               ? Center(
                   child: Text(
                     '尚未装入任何物料',
@@ -99,8 +103,9 @@ class MultiCodeBody extends StatelessWidget {
                   ),
                 )
               : ListView.builder(
-                  itemCount: visibleItems.length,
+                  itemCount: visibleItems.length + pendingAccessories.length,
                   itemBuilder: (context, index) {
+                    if (index < visibleItems.length) {
                       final item = visibleItems[index];
                       return MultiPackedRow(
                         item: item,
@@ -108,7 +113,8 @@ class MultiCodeBody extends StatelessWidget {
                         deleting: deletingPackedItemId == item.boxItemId,
                         isSubmitting: isSubmitting,
                         editingQuantity: editingPackedQuantity,
-                      onEditingQuantityChanged: onEditingPackedQuantityChanged,
+                        onEditingQuantityChanged:
+                            onEditingPackedQuantityChanged,
                         onSave: () => onSavePackedItem(item),
                         onCancelEdit: onCancelEditPackedItem,
                         onStartEdit: () => onStartEditPackedItem(item),
@@ -116,6 +122,14 @@ class MultiCodeBody extends StatelessWidget {
                         onDelete: () => onDeletePackedItem(item),
                         onCancelDelete: onCancelDeletePackedItem,
                       );
+                    }
+                    final accIndex = index - visibleItems.length;
+                    final acc = pendingAccessories[accIndex];
+                    return _MultiAccessoryRow(
+                      accessory: acc,
+                      isSubmitting: isSubmitting,
+                      onSubmit: () => onSubmitAccessory(acc),
+                    );
                   },
                 ),
         ),
@@ -604,3 +618,72 @@ class _MultiSubmitRow extends StatelessWidget {
     );
   }
 }
+
+class _MultiAccessoryRow extends StatelessWidget {
+  final PendingAccessory accessory;
+  final bool isSubmitting;
+  final VoidCallback onSubmit;
+
+  const _MultiAccessoryRow({
+    required this.accessory,
+    required this.isSubmitting,
+    required this.onSubmit,
+  });
+
+  @override
+  Widget build(BuildContext context) {
+    return Container(
+      height: 40,
+      padding: const EdgeInsets.symmetric(horizontal: 12),
+      decoration: BoxDecoration(
+        color: Colors.orange.shade50,
+        border: Border(bottom: BorderSide(color: Colors.grey.shade200)),
+      ),
+      child: Row(
+        children: [
+          Icon(Icons.build, size: 14, color: Colors.orange.shade600),
+          const SizedBox(width: 6),
+          Expanded(
+            flex: 40,
+            child: Text(
+              accessory.accessoryType,
+              style: const TextStyle(fontSize: 13, fontWeight: FontWeight.w500),
+              overflow: TextOverflow.ellipsis,
+            ),
+          ),
+          Expanded(
+            flex: 20,
+            child: Text(
+              '\u00d7${accessory.quantity}',
+              style: TextStyle(
+                fontSize: 13,
+                fontWeight: FontWeight.w600,
+                color: Colors.grey.shade700,
+              ),
+            ),
+          ),
+          SizedBox(
+            height: 28,
+            child: ElevatedButton(
+              onPressed: isSubmitting ? null : onSubmit,
+              style: ElevatedButton.styleFrom(
+                backgroundColor: isSubmitting
+                    ? Colors.grey.shade300
+                    : Colors.orange.shade600,
+                foregroundColor: Colors.white,
+                padding: const EdgeInsets.symmetric(horizontal: 10),
+                shape: RoundedRectangleBorder(
+                  borderRadius: BorderRadius.circular(4),
+                ),
+              ),
+              child: const Text(
+                '加入本箱',
+                style: TextStyle(fontSize: 11, fontWeight: FontWeight.w700),
+              ),
+            ),
+          ),
+        ],
+      ),
+    );
+  }
+}

lib/pages/boxing/widgets/single_code_body.dart

@@ -38,6 +38,8 @@ class SingleCodeBody extends StatelessWidget {
   final ValueChanged<CurrentZongpaiBoxData> onStartDeleteAssigned;
   final ValueChanged<CurrentZongpaiBoxData> onDeleteAssignedItem;
   final VoidCallback onCancelDeleteAssigned;
+  final List<PendingAccessory> pendingAccessories;
+  final ValueChanged<PendingAccessory> onSubmitAccessory;
 
   const SingleCodeBody({
     super.key,
@@ -74,6 +76,8 @@ class SingleCodeBody extends StatelessWidget {
     required this.onStartDeleteAssigned,
     required this.onDeleteAssignedItem,
     required this.onCancelDeleteAssigned,
+    required this.pendingAccessories,
+    required this.onSubmitAccessory,
   });
 
   @override
@@ -114,6 +118,12 @@ class SingleCodeBody extends StatelessWidget {
           onDeleteAssignedItem: onDeleteAssignedItem,
           onCancelDeleteAssigned: onCancelDeleteAssigned,
         ),
+        if (pendingAccessories.isNotEmpty && !isWaiting)
+          _PendingAccessoriesSection(
+            pendingAccessories: pendingAccessories,
+            isSubmitting: isSubmitting,
+            onSubmitAccessory: onSubmitAccessory,
+          ),
         _SingleBottomArea(
           disabled: isWaiting || isFinished,
           boxNoController: boxNoController,
@@ -239,9 +249,7 @@ class _SingleInfoBar extends StatelessWidget {
             style: TextStyle(
               fontSize: 22,
               fontWeight: FontWeight.w700,
-              color: isWaiting
+              color: isWaiting ? Colors.grey.shade400 : Colors.black87,
-                  ? Colors.grey.shade400
-                  : Colors.black87,
             ),
             overflow: TextOverflow.ellipsis,
           ),
@@ -252,9 +260,7 @@ class _SingleInfoBar extends StatelessWidget {
               mainAxisSize: MainAxisSize.min,
               children: [
                 Text(
-                  isWaiting
+                  isWaiting ? '已有 -- 箱' : '已有 ${existingBoxes.length} 箱',
-                      ? '已有 -- 箱'
-                      : '已有 ${existingBoxes.length} 箱',
                   style: TextStyle(
                     fontSize: 12,
                     color: isWaiting
@@ -263,9 +269,7 @@ class _SingleInfoBar extends StatelessWidget {
                   ),
                 ),
                 Text(
-                  isWaiting
+                  isWaiting ? '最大箱号 --' : '最大箱号 $maxBoxNo',
-                      ? '最大箱号 --'
-                      : '最大箱号 $maxBoxNo',
                   style: TextStyle(
                     fontSize: 12,
                     color: isWaiting
@@ -576,3 +580,120 @@ class _SingleBottomArea extends StatelessWidget {
     );
   }
 }
+
+class _PendingAccessoriesSection extends StatelessWidget {
+  final List<PendingAccessory> pendingAccessories;
+  final bool isSubmitting;
+  final ValueChanged<PendingAccessory> onSubmitAccessory;
+
+  const _PendingAccessoriesSection({
+    required this.pendingAccessories,
+    required this.isSubmitting,
+    required this.onSubmitAccessory,
+  });
+
+  @override
+  Widget build(BuildContext context) {
+    return Column(
+      crossAxisAlignment: CrossAxisAlignment.start,
+      children: [
+        Container(
+          height: 28,
+          padding: const EdgeInsets.symmetric(horizontal: 12),
+          decoration: BoxDecoration(
+            color: Colors.orange.shade50,
+            border: Border(bottom: BorderSide(color: Colors.orange.shade200)),
+          ),
+          child: Row(
+            children: [
+              Icon(Icons.build, size: 14, color: Colors.orange.shade700),
+              const SizedBox(width: 6),
+              Text(
+                '待装箱附件（${pendingAccessories.length} 项）',
+                style: TextStyle(
+                  fontSize: 11,
+                  fontWeight: FontWeight.w700,
+                  color: Colors.orange.shade800,
+                ),
+              ),
+            ],
+          ),
+        ),
+        ...pendingAccessories.map(
+          (acc) => _AccessoryRow(
+            accessory: acc,
+            isSubmitting: isSubmitting,
+            onSubmit: () => onSubmitAccessory(acc),
+          ),
+        ),
+      ],
+    );
+  }
+}
+
+class _AccessoryRow extends StatelessWidget {
+  final PendingAccessory accessory;
+  final bool isSubmitting;
+  final VoidCallback onSubmit;
+
+  const _AccessoryRow({
+    required this.accessory,
+    required this.isSubmitting,
+    required this.onSubmit,
+  });
+
+  @override
+  Widget build(BuildContext context) {
+    return Container(
+      height: 36,
+      padding: const EdgeInsets.symmetric(horizontal: 12),
+      decoration: BoxDecoration(
+        color: Colors.orange.shade50,
+        border: Border(bottom: BorderSide(color: Colors.grey.shade200)),
+      ),
+      child: Row(
+        children: [
+          Expanded(
+            flex: 40,
+            child: Text(
+              accessory.accessoryType,
+              style: const TextStyle(fontSize: 13, fontWeight: FontWeight.w500),
+              overflow: TextOverflow.ellipsis,
+            ),
+          ),
+          Expanded(
+            flex: 20,
+            child: Text(
+              '\u00d7${accessory.quantity}',
+              style: TextStyle(
+                fontSize: 13,
+                fontWeight: FontWeight.w600,
+                color: Colors.grey.shade700,
+              ),
+            ),
+          ),
+          SizedBox(
+            height: 28,
+            child: ElevatedButton(
+              onPressed: isSubmitting ? null : onSubmit,
+              style: ElevatedButton.styleFrom(
+                backgroundColor: isSubmitting
+                    ? Colors.grey.shade300
+                    : Colors.orange.shade600,
+                foregroundColor: Colors.white,
+                padding: const EdgeInsets.symmetric(horizontal: 10),
+                shape: RoundedRectangleBorder(
+                  borderRadius: BorderRadius.circular(4),
+                ),
+              ),
+              child: const Text(
+                '加入本箱',
+                style: TextStyle(fontSize: 11, fontWeight: FontWeight.w700),
+              ),
+            ),
+          ),
+        ],
+      ),
+    );
+  }
+}

lib/pages/boxing_detail_page.dart

@@ -103,15 +103,40 @@ class BoxingDetailPage extends StatelessWidget {
             ),
             child: Column(
               children: box.items.map((item) {
-                return Padding(
+                final isAccessory = item.itemType == 'accessory';
-                  padding: const EdgeInsets.symmetric(vertical: 2),
+                return Container(
+                  padding: const EdgeInsets.symmetric(
+                    vertical: 4,
+                    horizontal: 4,
+                  ),
+                  margin: const EdgeInsets.symmetric(vertical: 1),
+                  decoration: isAccessory
+                      ? BoxDecoration(
+                          color: Colors.orange.shade50,
+                          borderRadius: BorderRadius.circular(4),
+                        )
+                      : null,
                   child: Row(
                     children: [
+                      if (isAccessory)
+                        Padding(
+                          padding: const EdgeInsets.only(right: 6),
+                          child: Icon(
+                            Icons.build,
+                            size: 14,
+                            color: Colors.orange.shade700,
+                          ),
+                        ),
                       Expanded(
                         flex: 3,
                         child: Text(
                           item.zongpaiNo,
-                          style: const TextStyle(fontSize: 14),
+                          style: TextStyle(
+                            fontSize: 14,
+                            fontWeight: isAccessory
+                                ? FontWeight.w600
+                                : FontWeight.normal,
+                          ),
                           overflow: TextOverflow.ellipsis,
                         ),
                       ),

lib/pages/boxing_page.dart

@@ -107,6 +107,9 @@ class _BoxingPageState extends State<BoxingPage> with WidgetsBindingObserver {
   // 多码凑箱：已完成装箱时可跳转的箱号
   int? _completedJumpBoxNo;
 
+  // 待装箱附件
+  List<PendingAccessory> _pendingAccessories = [];
+
   @override
   void initState() {
     super.initState();
@@ -244,6 +247,7 @@ class _BoxingPageState extends State<BoxingPage> with WidgetsBindingObserver {
     _isDuplicateBoxNo = false;
     _statusOverrideText = null;
     _statusOverrideDot = null;
+    _pendingAccessories = [];
   }
 
   // === 重复箱号检测 ===
@@ -415,6 +419,9 @@ class _BoxingPageState extends State<BoxingPage> with WidgetsBindingObserver {
                           this._deletePackedItem(item),
                       onCancelDeletePackedItem: () =>
                           setState(() => _deletingPackedItemId = null),
+                      pendingAccessories: _pendingAccessories,
+                      onSubmitAccessory: (accessory) =>
+                          this._submitAccessory(accessory),
                     )
                   : SingleCodeBody(
                       isWaiting:
@@ -465,6 +472,9 @@ class _BoxingPageState extends State<BoxingPage> with WidgetsBindingObserver {
                           this._deleteAssignedItem(item),
                       onCancelDeleteAssigned: () =>
                           setState(() => _deletingAssignedItemId = null),
+                      pendingAccessories: _pendingAccessories,
+                      onSubmitAccessory: (accessory) =>
+                          this._submitAccessory(accessory),
                     ),
             ),
 

lib/pages/home_page.dart

@@ -4,10 +4,11 @@ import 'package:pad_scanner/services/app_config_service.dart';
 import 'package:pad_scanner/pages/settings_page.dart';
 import 'package:pad_scanner/pages/registration_page.dart';
 import 'package:pad_scanner/pages/boxing_page.dart';
+import 'package:pad_scanner/pages/accessory_page.dart';
 import 'package:pad_scanner/services/api_service.dart';
 
 /// Module type enum for each available feature card
-enum ModuleType { registration, boxing, shelfQuery }
+enum ModuleType { registration, boxing, accessory, shelfQuery }
 
 /// Module status for PRD state tracking
 enum ModuleStatus { online, developing, planning }
@@ -64,8 +65,16 @@ class _HomePageState extends State<HomePage> {
       route: '/boxing',
     ),
     FeatureCard(
-      type: ModuleType.shelfQuery,
+      type: ModuleType.accessory,
       shortcut: '3',
+      icon: Icons.build,
+      title: '附件登记',
+      status: ModuleStatus.developing,
+      route: '/accessory',
+    ),
+    FeatureCard(
+      type: ModuleType.shelfQuery,
+      shortcut: '4',
       icon: Icons.search_outlined,
       title: '货架查询',
       status: ModuleStatus.planning,
@@ -101,17 +110,11 @@ class _HomePageState extends State<HomePage> {
 
   FeatureCard? _moduleFromShortcut(KeyEvent event) {
     final shortcut = _shortcutNumberFromKeyEvent(event);
-    if (shortcut == 1) {
+    if (shortcut == null || shortcut < 1 || shortcut > _modules.length) {
-      return _modules[0];
-    }
-    if (shortcut == 2) {
-      return _modules[1];
-    }
-    if (shortcut == 3) {
-      return _modules[2];
-    }
       return null;
     }
+    return _modules[shortcut - 1];
+  }
 
   int? _shortcutNumberFromKeyEvent(KeyEvent event) {
     final key = event.logicalKey;
@@ -130,6 +133,11 @@ class _HomePageState extends State<HomePage> {
         event.character == '3') {
       return 3;
     }
+    if (key == LogicalKeyboardKey.digit4 ||
+        key == LogicalKeyboardKey.numpad4 ||
+        event.character == '4') {
+      return 4;
+    }
     return null;
   }
 
@@ -181,6 +189,9 @@ class _HomePageState extends State<HomePage> {
       case ModuleType.boxing:
         targetPage = const BoxingPage();
         break;
+      case ModuleType.accessory:
+        targetPage = const AccessoryPage();
+        break;
       case ModuleType.shelfQuery:
         return; // 规划中，不导航
     }

lib/services/api_service.dart

@@ -118,6 +118,30 @@ class PaichaOverviewResult {
 
 // === 装箱模块数据类 ===
 
+/// 待装箱附件
+class PendingAccessory {
+  final int accessoryId;
+  final String accessoryType;
+  final int quantity;
+  final String? locationCode;
+
+  PendingAccessory({
+    required this.accessoryId,
+    required this.accessoryType,
+    required this.quantity,
+    this.locationCode,
+  });
+
+  factory PendingAccessory.fromJson(Map<String, dynamic> json) {
+    return PendingAccessory(
+      accessoryId: json['accessory_id'] as int,
+      accessoryType: json['accessory_type'] as String,
+      quantity: json['quantity'] as int,
+      locationCode: json['location_code']?.toString(),
+    );
+  }
+}
+
 /// 箱号内单个总排号明细
 class BoxItemData {
   final int? boxItemId;
@@ -125,6 +149,7 @@ class BoxItemData {
   final String? workOrderNo;
   final int quantity;
   final int? totalQuantity;
+  final String itemType;
 
   BoxItemData({
     this.boxItemId,
@@ -132,6 +157,7 @@ class BoxItemData {
     this.workOrderNo,
     required this.quantity,
     this.totalQuantity,
+    this.itemType = 'product',
   });
 
   factory BoxItemData.fromJson(Map<String, dynamic> json) {
@@ -141,6 +167,7 @@ class BoxItemData {
       workOrderNo: json['work_order_no']?.toString(),
       quantity: json['quantity'] as int,
       totalQuantity: json['total_quantity'] as int?,
+      itemType: json['item_type'] as String? ?? 'product',
     );
   }
 }
@@ -167,11 +194,13 @@ class CurrentZongpaiBoxData {
   final int boxItemId;
   final int boxNo;
   final int quantity;
+  final String itemType;
 
   CurrentZongpaiBoxData({
     required this.boxItemId,
     required this.boxNo,
     required this.quantity,
+    this.itemType = 'product',
   });
 
   factory CurrentZongpaiBoxData.fromJson(Map<String, dynamic> json) {
@@ -179,6 +208,7 @@ class CurrentZongpaiBoxData {
       boxItemId: json['box_item_id'] as int,
       boxNo: json['box_no'] as int,
       quantity: json['quantity'] as int,
+      itemType: json['item_type'] as String? ?? 'product',
     );
   }
 }
@@ -195,6 +225,7 @@ class BoxInfoResult {
   final List<BoxDetailData> existingBoxes;
   final int maxBoxNo;
   final int suggestedBoxNo;
+  final List<PendingAccessory> pendingAccessories;
 
   BoxInfoResult({
     required this.success,
@@ -207,6 +238,7 @@ class BoxInfoResult {
     this.existingBoxes = const [],
     this.maxBoxNo = 0,
     this.suggestedBoxNo = 1,
+    this.pendingAccessories = const [],
   });
 
   factory BoxInfoResult.ok(Map<String, dynamic> json) {
@@ -222,6 +254,11 @@ class BoxInfoResult {
             )
             .toList() ??
         [];
+    final pendingAccessories =
+        (json['pending_accessories'] as List<dynamic>?)
+            ?.map((a) => PendingAccessory.fromJson(a as Map<String, dynamic>))
+            .toList() ??
+        [];
     return BoxInfoResult(
       success: true,
       zongpaiNo: json['zongpai_no'] as String?,
@@ -232,6 +269,7 @@ class BoxInfoResult {
       existingBoxes: boxes,
       maxBoxNo: json['max_box_no'] as int? ?? 0,
       suggestedBoxNo: json['suggested_box_no'] as int? ?? 1,
+      pendingAccessories: pendingAccessories,
     );
   }
 
@@ -299,6 +337,163 @@ class BoxDeleteResult {
   BoxDeleteResult({required this.success, this.errorMessage});
 }
 
+// === 附件模块数据类 ===
+
+/// 工令号分组（工令号 → 总排号列表）
+class WorkOrderGroup {
+  final String workOrderNo;
+  final List<String> zongpaiNos;
+  WorkOrderGroup({required this.workOrderNo, required this.zongpaiNos});
+  factory WorkOrderGroup.fromJson(Map<String, dynamic> json) => WorkOrderGroup(
+    workOrderNo: json['work_order_no'] as String,
+    zongpaiNos: (json['zongpai_nos'] as List).map((e) => e as String).toList(),
+  );
+}
+
+/// 附件类型预设
+class AccessoryTypeInfo {
+  final int id;
+  final String name;
+  final int sortOrder;
+  AccessoryTypeInfo({
+    required this.id,
+    required this.name,
+    required this.sortOrder,
+  });
+  factory AccessoryTypeInfo.fromJson(Map<String, dynamic> json) =>
+      AccessoryTypeInfo(
+        id: json['id'] as int,
+        name: json['name'] as String,
+        sortOrder: json['sort_order'] as int,
+      );
+}
+
+/// 附件记录
+class AccessoryRecord {
+  final int id;
+  final String paichanNo;
+  final String zongpaiNo;
+  final String accessoryType;
+  final int quantity;
+  final String? locationCode;
+  final bool isBoxed;
+  final String createdAt;
+  AccessoryRecord({
+    required this.id,
+    required this.paichanNo,
+    required this.zongpaiNo,
+    required this.accessoryType,
+    required this.quantity,
+    this.locationCode,
+    required this.isBoxed,
+    required this.createdAt,
+  });
+  factory AccessoryRecord.fromJson(Map<String, dynamic> json) =>
+      AccessoryRecord(
+        id: json['id'] as int,
+        paichanNo: json['paichan_no'] as String,
+        zongpaiNo: json['zongpai_no'] as String,
+        accessoryType: json['accessory_type'] as String,
+        quantity: json['quantity'] as int,
+        locationCode: json['location_code'] as String?,
+        isBoxed: json['is_boxed'] as bool,
+        createdAt: json['created_at'] as String,
+      );
+}
+
+// === 附件模块结果类 ===
+
+class WorkOrderQueryResult {
+  final bool success;
+  final String? paichanNo;
+  final List<WorkOrderGroup> workOrders;
+  final String? errorMessage;
+  final String? errorCode;
+  WorkOrderQueryResult({
+    required this.success,
+    this.paichanNo,
+    this.workOrders = const [],
+    this.errorMessage,
+    this.errorCode,
+  });
+}
+
+class AccessoryListResult {
+  final bool success;
+  final List<AccessoryRecord> items;
+  final String? errorMessage;
+  final String? errorCode;
+  AccessoryListResult({
+    required this.success,
+    this.items = const [],
+    this.errorMessage,
+    this.errorCode,
+  });
+}
+
+class AccessoryCreateResult {
+  final bool success;
+  final AccessoryRecord? record;
+  final String? errorMessage;
+  final String? errorCode;
+  AccessoryCreateResult({
+    required this.success,
+    this.record,
+    this.errorMessage,
+    this.errorCode,
+  });
+}
+
+class AccessoryUpdateResult {
+  final bool success;
+  final AccessoryRecord? record;
+  final String? errorMessage;
+  final String? errorCode;
+  AccessoryUpdateResult({
+    required this.success,
+    this.record,
+    this.errorMessage,
+    this.errorCode,
+  });
+}
+
+class AccessoryDeleteResult {
+  final bool success;
+  final String? errorMessage;
+  final String? errorCode;
+  AccessoryDeleteResult({
+    required this.success,
+    this.errorMessage,
+    this.errorCode,
+  });
+}
+
+class AccessoryTypeListResult {
+  final bool success;
+  final List<AccessoryTypeInfo> types;
+  final String? errorMessage;
+  final String? errorCode;
+  AccessoryTypeListResult({
+    required this.success,
+    this.types = const [],
+    this.errorMessage,
+    this.errorCode,
+  });
+}
+
+class AccessoryTypeCreateResult {
+  final bool success;
+  final AccessoryTypeInfo? type;
+  final String? errorMessage;
+  final String? errorCode;
+  AccessoryTypeCreateResult({
+    required this.success,
+    this.type,
+    this.errorMessage,
+    this.errorCode,
+  });
+}
+
 class ApiService {
   final http.Client _client;
   final Duration timeout;
@@ -423,18 +618,25 @@ class ApiService {
     required String zongpaiNo,
     required int boxNo,
     required int quantity,
+    String itemType = 'product',
+    int? accessoryId,
   }) async {
     final uri = Uri.parse('$baseUrl/CargoTrace/box');
     try {
+      final bodyMap = <String, dynamic>{
+        'zongpai_no': zongpaiNo,
+        'box_no': boxNo,
+        'quantity': quantity,
+        'item_type': itemType,
+      };
+      if (accessoryId != null) {
+        bodyMap['accessory_id'] = accessoryId;
+      }
       final response = await _client
           .post(
             uri,
             headers: {'Content-Type': 'application/json'},
-            body: jsonEncode({
+            body: jsonEncode(bodyMap),
-              'zongpai_no': zongpaiNo,
-              'box_no': boxNo,
-              'quantity': quantity,
-            }),
           )
           .timeout(timeout);
 
@@ -524,6 +726,403 @@ class ApiService {
     }
   }
 
+  // === 附件模块 API 方法 ===
+
+  /// 工令号查询 — GET /CargoTrace/accessory/work-orders
+  Future<WorkOrderQueryResult> queryWorkOrders({
+    required String baseUrl,
+    required String paichanNo,
+  }) async {
+    final uri = Uri.parse(
+      '$baseUrl/CargoTrace/accessory/work-orders',
+    ).replace(queryParameters: {'paichan_no': paichanNo});
+    try {
+      final response = await _client
+          .get(uri, headers: {'Content-Type': 'application/json'})
+          .timeout(timeout);
+
+      switch (response.statusCode) {
+        case 200:
+          final body = jsonDecode(response.body) as Map<String, dynamic>;
+          final workOrders =
+              (body['work_orders'] as List<dynamic>?)
+                  ?.map(
+                    (w) => WorkOrderGroup.fromJson(w as Map<String, dynamic>),
+                  )
+                  .toList() ??
+              [];
+          return WorkOrderQueryResult(
+            success: true,
+            paichanNo: body['paichan_no'] as String?,
+            workOrders: workOrders,
+          );
+        case 400:
+          final body = jsonDecode(response.body) as Map<String, dynamic>;
+          return WorkOrderQueryResult(
+            success: false,
+            errorMessage: body['message']?.toString() ?? '请求参数错误',
+            errorCode: body['error_code']?.toString(),
+          );
+        case 404:
+          return WorkOrderQueryResult(
+            success: false,
+            errorMessage: '未找到该排产号对应的工令号信息',
+            errorCode: 'NOT_FOUND',
+          );
+        default:
+          return WorkOrderQueryResult(
+            success: false,
+            errorMessage: '查询失败 (${response.statusCode})',
+          );
+      }
+    } catch (e) {
+      return WorkOrderQueryResult(success: false, errorMessage: '网络异常，请检查网络连接');
+    }
+  }
+
+  /// 附件列表查询 — GET /CargoTrace/accessory
+  Future<AccessoryListResult> listAccessories({
+    required String baseUrl,
+    required String paichanNo,
+  }) async {
+    final uri = Uri.parse(
+      '$baseUrl/CargoTrace/accessory',
+    ).replace(queryParameters: {'paichan_no': paichanNo});
+    try {
+      final response = await _client
+          .get(uri, headers: {'Content-Type': 'application/json'})
+          .timeout(timeout);
+
+      switch (response.statusCode) {
+        case 200:
+          final body = jsonDecode(response.body) as Map<String, dynamic>;
+          final items =
+              (body['items'] as List<dynamic>?)
+                  ?.map(
+                    (i) => AccessoryRecord.fromJson(i as Map<String, dynamic>),
+                  )
+                  .toList() ??
+              [];
+          return AccessoryListResult(success: true, items: items);
+        case 400:
+          final body = jsonDecode(response.body) as Map<String, dynamic>;
+          return AccessoryListResult(
+            success: false,
+            errorMessage: body['message']?.toString() ?? '请求参数错误',
+            errorCode: body['error_code']?.toString(),
+          );
+        case 404:
+          return AccessoryListResult(
+            success: false,
+            errorMessage: '未找到该排产号信息',
+            errorCode: 'NOT_FOUND',
+          );
+        default:
+          return AccessoryListResult(
+            success: false,
+            errorMessage: '查询失败 (${response.statusCode})',
+          );
+      }
+    } catch (e) {
+      return AccessoryListResult(success: false, errorMessage: '网络异常，请检查网络连接');
+    }
+  }
+
+  /// 附件创建（上架） — POST /CargoTrace/accessory
+  Future<AccessoryCreateResult> createAccessory({
+    required String baseUrl,
+    required String paichanNo,
+    required String zongpaiNo,
+    required String accessoryType,
+    required int quantity,
+    String? locationCode,
+  }) async {
+    final uri = Uri.parse('$baseUrl/CargoTrace/accessory');
+    try {
+      final bodyMap = <String, dynamic>{
+        'paichan_no': paichanNo,
+        'zongpai_no': zongpaiNo,
+        'accessory_type': accessoryType,
+        'quantity': quantity,
+      };
+      if (locationCode != null) {
+        bodyMap['location_code'] = locationCode;
+      }
+      final response = await _client
+          .post(
+            uri,
+            headers: {'Content-Type': 'application/json'},
+            body: jsonEncode(bodyMap),
+          )
+          .timeout(timeout);
+
+      switch (response.statusCode) {
+        case 200:
+          final body = jsonDecode(response.body) as Map<String, dynamic>;
+          return AccessoryCreateResult(
+            success: true,
+            record: AccessoryRecord.fromJson(body),
+          );
+        case 400:
+          final body = jsonDecode(response.body) as Map<String, dynamic>;
+          return AccessoryCreateResult(
+            success: false,
+            errorMessage: body['message']?.toString() ?? '请求参数错误',
+            errorCode: body['error_code']?.toString(),
+          );
+        case 404:
+          return AccessoryCreateResult(
+            success: false,
+            errorMessage: '未找到该排产号对应的工令号信息',
+            errorCode: 'NOT_FOUND',
+          );
+        case 409:
+          final body = jsonDecode(response.body) as Map<String, dynamic>;
+          return AccessoryCreateResult(
+            success: false,
+            errorMessage: body['message']?.toString() ?? '冲突',
+            errorCode: body['error_code']?.toString(),
+          );
+        default:
+          return AccessoryCreateResult(
+            success: false,
+            errorMessage: '创建失败 (${response.statusCode})',
+          );
+      }
+    } catch (e) {
+      return AccessoryCreateResult(
+        success: false,
+        errorMessage: '网络异常，请检查网络连接',
+      );
+    }
+  }
+
+  /// 附件更新 — PATCH /CargoTrace/accessory/{id}
+  Future<AccessoryUpdateResult> updateAccessory({
+    required String baseUrl,
+    required int id,
+    String? accessoryType,
+    int? quantity,
+    String? locationCode,
+  }) async {
+    final uri = Uri.parse('$baseUrl/CargoTrace/accessory/$id');
+    try {
+      final bodyMap = <String, dynamic>{};
+      if (accessoryType != null) bodyMap['accessory_type'] = accessoryType;
+      if (quantity != null) bodyMap['quantity'] = quantity;
+      if (locationCode != null) bodyMap['location_code'] = locationCode;
+
+      final response = await _client
+          .patch(
+            uri,
+            headers: {'Content-Type': 'application/json'},
+            body: jsonEncode(bodyMap),
+          )
+          .timeout(timeout);
+
+      switch (response.statusCode) {
+        case 200:
+          final body = jsonDecode(response.body) as Map<String, dynamic>;
+          return AccessoryUpdateResult(
+            success: true,
+            record: AccessoryRecord.fromJson(body),
+          );
+        case 400:
+          final body = jsonDecode(response.body) as Map<String, dynamic>;
+          return AccessoryUpdateResult(
+            success: false,
+            errorMessage: body['message']?.toString() ?? '请求参数错误',
+            errorCode: body['error_code']?.toString(),
+          );
+        case 404:
+          return AccessoryUpdateResult(
+            success: false,
+            errorMessage: '指定附件记录不存在',
+            errorCode: 'NOT_FOUND',
+          );
+        default:
+          return AccessoryUpdateResult(
+            success: false,
+            errorMessage: '更新失败 (${response.statusCode})',
+          );
+      }
+    } catch (e) {
+      return AccessoryUpdateResult(
+        success: false,
+        errorMessage: '网络异常，请检查网络连接',
+      );
+    }
+  }
+
+  /// 附件删除 — DELETE /CargoTrace/accessory/{id}
+  Future<AccessoryDeleteResult> deleteAccessory({
+    required String baseUrl,
+    required int id,
+  }) async {
+    final uri = Uri.parse('$baseUrl/CargoTrace/accessory/$id');
+    try {
+      final response = await _client
+          .delete(uri, headers: {'Content-Type': 'application/json'})
+          .timeout(timeout);
+
+      switch (response.statusCode) {
+        case 200:
+          return AccessoryDeleteResult(success: true);
+        case 404:
+          return AccessoryDeleteResult(
+            success: false,
+            errorMessage: '指定附件记录不存在',
+            errorCode: 'NOT_FOUND',
+          );
+        default:
+          return AccessoryDeleteResult(
+            success: false,
+            errorMessage: '删除失败 (${response.statusCode})',
+          );
+      }
+    } catch (e) {
+      return AccessoryDeleteResult(
+        success: false,
+        errorMessage: '网络异常，请检查网络连接',
+      );
+    }
+  }
+
+  /// 附件类型列表 — GET /CargoTrace/accessory-type
+  Future<AccessoryTypeListResult> listAccessoryTypes({
+    required String baseUrl,
+  }) async {
+    final uri = Uri.parse('$baseUrl/CargoTrace/accessory-type');
+    try {
+      final response = await _client
+          .get(uri, headers: {'Content-Type': 'application/json'})
+          .timeout(timeout);
+
+      switch (response.statusCode) {
+        case 200:
+          final body = jsonDecode(response.body) as Map<String, dynamic>;
+          final types =
+              (body['types'] as List<dynamic>?)
+                  ?.map(
+                    (t) =>
+                        AccessoryTypeInfo.fromJson(t as Map<String, dynamic>),
+                  )
+                  .toList() ??
+              [];
+          return AccessoryTypeListResult(success: true, types: types);
+        case 400:
+          final body = jsonDecode(response.body) as Map<String, dynamic>;
+          return AccessoryTypeListResult(
+            success: false,
+            errorMessage: body['message']?.toString() ?? '请求参数错误',
+            errorCode: body['error_code']?.toString(),
+          );
+        default:
+          return AccessoryTypeListResult(
+            success: false,
+            errorMessage: '查询失败 (${response.statusCode})',
+          );
+      }
+    } catch (e) {
+      return AccessoryTypeListResult(
+        success: false,
+        errorMessage: '网络异常，请检查网络连接',
+      );
+    }
+  }
+
+  /// 附件类型创建 — POST /CargoTrace/accessory-type
+  Future<AccessoryTypeCreateResult> createAccessoryType({
+    required String baseUrl,
+    required String name,
+    int sortOrder = 0,
+  }) async {
+    final uri = Uri.parse('$baseUrl/CargoTrace/accessory-type');
+    try {
+      final response = await _client
+          .post(
+            uri,
+            headers: {'Content-Type': 'application/json'},
+            body: jsonEncode({'name': name, 'sort_order': sortOrder}),
+          )
+          .timeout(timeout);
+
+      switch (response.statusCode) {
+        case 200:
+          final body = jsonDecode(response.body) as Map<String, dynamic>;
+          return AccessoryTypeCreateResult(
+            success: true,
+            type: AccessoryTypeInfo.fromJson(body),
+          );
+        case 400:
+          final body = jsonDecode(response.body) as Map<String, dynamic>;
+          return AccessoryTypeCreateResult(
+            success: false,
+            errorMessage: body['message']?.toString() ?? '请求参数错误',
+            errorCode: body['error_code']?.toString(),
+          );
+        case 409:
+          final body = jsonDecode(response.body) as Map<String, dynamic>;
+          return AccessoryTypeCreateResult(
+            success: false,
+            errorMessage: body['message']?.toString() ?? '附件类型已存在',
+            errorCode: body['error_code']?.toString(),
+          );
+        default:
+          return AccessoryTypeCreateResult(
+            success: false,
+            errorMessage: '创建失败 (${response.statusCode})',
+          );
+      }
+    } catch (e) {
+      return AccessoryTypeCreateResult(
+        success: false,
+        errorMessage: '网络异常，请检查网络连接',
+      );
+    }
+  }
+
+  /// 附件类型删除 — DELETE /CargoTrace/accessory-type/{id}
+  Future<AccessoryDeleteResult> deleteAccessoryType({
+    required String baseUrl,
+    required int id,
+  }) async {
+    final uri = Uri.parse('$baseUrl/CargoTrace/accessory-type/$id');
+    try {
+      final response = await _client
+          .delete(uri, headers: {'Content-Type': 'application/json'})
+          .timeout(timeout);
+
+      switch (response.statusCode) {
+        case 200:
+          return AccessoryDeleteResult(success: true);
+        case 404:
+          return AccessoryDeleteResult(
+            success: false,
+            errorMessage: '指定附件类型不存在',
+            errorCode: 'NOT_FOUND',
+          );
+        case 409:
+          final body = jsonDecode(response.body) as Map<String, dynamic>;
+          return AccessoryDeleteResult(
+            success: false,
+            errorMessage: body['message']?.toString() ?? '该类型下存在附件记录，无法删除',
+            errorCode: body['error_code']?.toString(),
+          );
+        default:
+          return AccessoryDeleteResult(
+            success: false,
+            errorMessage: '删除失败 (${response.statusCode})',
+          );
+      }
+    } catch (e) {
+      return AccessoryDeleteResult(
+        success: false,
+        errorMessage: '网络异常，请检查网络连接',
+      );
+    }
+  }
+
   /// Test connectivity by making a HEAD request to the base URL.
   Future<bool> testConnection(String baseUrl) async {
     try {