feat(client): 商品详情页展示所有字段，补全分类/库存预警/备注/自定义字段/描述文档

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

client/lib/models/product.dart

@@ -18,10 +18,14 @@ class Product {
   final String? remark;
   final Map<String, dynamic>? customFields;
   final List<ProductImage> images;
-  // 产地/保质期/储存方式名称（Detail 接口 Preload 后填充）
+  // 产地/保质期/储存方式/分类名称（Detail 接口 Preload 后填充）
   final String? originName;
   final String? shelfLifeName;
   final String? storageName;
+  final String? categoryName;
+  // 描述文档（关联的字典记录）
+  final String? descriptionDocTitle;
+  final String? descriptionDocContent;
 
   const Product({
     required this.id,
@@ -44,6 +48,9 @@ class Product {
     this.originName,
     this.shelfLifeName,
     this.storageName,
+    this.categoryName,
+    this.descriptionDocTitle,
+    this.descriptionDocContent,
   });
 
   factory Product.fromJson(Map<String, dynamic> json) => Product(
@@ -78,6 +85,9 @@ class Product {
         originName: (json['origin'] as Map<String, dynamic>?)?['name'] as String?,
         shelfLifeName: (json['shelf_life'] as Map<String, dynamic>?)?['name'] as String?,
         storageName: (json['storage'] as Map<String, dynamic>?)?['name'] as String?,
+        categoryName: (json['category'] as Map<String, dynamic>?)?['name'] as String?,
+        descriptionDocTitle: (json['description_doc'] as Map<String, dynamic>?)?['title'] as String?,
+        descriptionDocContent: (json['description_doc'] as Map<String, dynamic>?)?['content'] as String?,
       );
 
   Map<String, dynamic> toJson() => {

client/lib/screens/products/product_detail_screen.dart

@@ -202,6 +202,10 @@ class _ProductDetailScreenState extends ConsumerState<ProductDetailScreen> {
         categoryId: p.categoryId, brand: p.brand, purchasePrice: p.purchasePrice,
         salePrice: p.salePrice, minStock: p.minStock, description: p.description,
         remark: p.remark, customFields: p.customFields, images: images,
+        originName: p.originName, shelfLifeName: p.shelfLifeName,
+        storageName: p.storageName, categoryName: p.categoryName,
+        descriptionDocTitle: p.descriptionDocTitle,
+        descriptionDocContent: p.descriptionDocContent,
       );
     });
   }
@@ -275,6 +279,10 @@ class _ProductDetailScreenState extends ConsumerState<ProductDetailScreen> {
                 ],
                 const SizedBox(height: 20),
                 _buildDescSection(),
+                if (p.descriptionDocTitle?.isNotEmpty ?? false) ...[
+                  const SizedBox(height: 20),
+                  _buildDescriptionDocSection(p),
+                ],
                 const SizedBox(height: 20),
                 _buildPublicLinkSection(p),
               ],
@@ -353,7 +361,11 @@ class _ProductDetailScreenState extends ConsumerState<ProductDetailScreen> {
             SizedBox(width: 200, child: row('规格', p.spec?.isEmpty ?? true ? '-' : p.spec!)),
             SizedBox(width: 200, child: row('品牌', p.brand?.isEmpty ?? true ? '-' : p.brand!)),
             SizedBox(width: 200, child: row('单位', p.unit.isEmpty ? '-' : p.unit)),
-            SizedBox(width: 200, child: row('进价', p.purchasePrice != null ? '¥${p.purchasePrice!.toStringAsFixed(2)}' : '-')),
+            if (p.categoryName?.isNotEmpty ?? false)
+              SizedBox(width: 200, child: row('分类', p.categoryName!)),
+            SizedBox(width: 200, child: row('进价', p.purchasePrice != null && p.purchasePrice! > 0 ? '¥${p.purchasePrice!.toStringAsFixed(2)}' : '-')),
+            if (p.minStock != null && p.minStock! > 0)
+              SizedBox(width: 200, child: row('库存预警', '${p.minStock}')),
             if (p.originName?.isNotEmpty ?? false)
               SizedBox(width: 200, child: row('产地', p.originName!)),
             if (p.shelfLifeName?.isNotEmpty ?? false)
@@ -362,6 +374,47 @@ class _ProductDetailScreenState extends ConsumerState<ProductDetailScreen> {
               SizedBox(width: 200, child: row('储存方式', p.storageName!)),
             if (p.barcode?.isNotEmpty ?? false)
               SizedBox(width: 200, child: row('条码', p.barcode!)),
+            if (p.remark?.isNotEmpty ?? false)
+              SizedBox(width: 400, child: row('备注', p.remark!)),
+            ...?_buildCustomFieldRows(p, row),
+          ],
+        ),
+      ),
+    );
+  }
+
+  List<Widget>? _buildCustomFieldRows(
+      Product p, Widget Function(String, String) row) {
+    final fields = p.customFields;
+    if (fields == null || fields.isEmpty) return null;
+    return fields.entries
+        .where((e) => e.value != null && e.value.toString().isNotEmpty)
+        .map((e) =>
+            SizedBox(width: 200, child: row(e.key, e.value.toString())))
+        .toList();
+  }
+
+  Widget _buildDescriptionDocSection(Product p) {
+    return Card(
+      elevation: 0,
+      shape: RoundedRectangleBorder(
+        borderRadius: BorderRadius.circular(6),
+        side: BorderSide(color: AppTheme.border, width: 0.5),
+      ),
+      child: Padding(
+        padding: const EdgeInsets.all(16),
+        child: Column(
+          crossAxisAlignment: CrossAxisAlignment.start,
+          children: [
+            Text(p.descriptionDocTitle!,
+                style: const TextStyle(
+                    fontSize: 14, fontWeight: FontWeight.w600)),
+            if (p.descriptionDocContent?.isNotEmpty ?? false) ...[
+              const SizedBox(height: 10),
+              Text(p.descriptionDocContent!,
+                  style: const TextStyle(
+                      fontSize: 13, color: AppTheme.textSecondary, height: 1.6)),
+            ],
           ],
         ),
       ),