feat: #13 公开商品 API 补充 code/barcode/batch.quantity，报错反馈携带商品和门店信息

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

backend/internal/handler/error_report.go

@@ -24,6 +24,7 @@ type submitErrorRequest struct {
 	ShopID      uint64 `json:"shop_id"`
 	ShopNo      string `json:"shop_no"`
 	Role        string `json:"role"`
+	ProductInfo string `json:"product_info"`
 	ErrorMsg    string `json:"error_msg" binding:"required"`
 	StackTrace  string `json:"stack_trace"`
 	OccurredAt  int64  `json:"occurred_at"` // Unix 毫秒
@@ -56,6 +57,7 @@ func (h *ErrorReportHandler) Submit(c *gin.Context) {
 		ShopID:      req.ShopID,
 		ShopNo:      req.ShopNo,
 		Role:        req.Role,
+		ProductInfo: req.ProductInfo,
 		ClientIP:    c.ClientIP(),
 		ErrorMsg:    req.ErrorMsg,
 		StackTrace:  stack,

backend/internal/handler/public.go

@@ -72,6 +72,7 @@ func (h *PublicHandler) GetProduct(c *gin.Context) {
 			"production_date": pdStr,
 			"batch_no":        inv.BatchNo,
 			"in_stock_date":   inv.CreatedAt.Format("2006-01-02"),
+			"quantity":        inv.Quantity,
 		}
 	}
 
@@ -100,6 +101,8 @@ func (h *PublicHandler) GetProduct(c *gin.Context) {
 		"data": gin.H{
 			"id":                   product.ID,
 			"name":                 product.Name,
+			"code":                 product.Code,
+			"barcode":              product.Barcode,
 			"series":               product.Series,
 			"spec":                 product.Spec,
 			"brand":                product.Brand,

backend/internal/model/error_report.go

@@ -13,6 +13,7 @@ type ErrorReport struct {
 	ShopID     uint64    `gorm:"index"                   json:"shop_id"`
 	ShopNo     string    `gorm:"size:50"                 json:"shop_no"`
 	Role        string   `gorm:"size:20"                 json:"role"`
+	ProductInfo string   `gorm:"size:200"                json:"product_info"`
 	ClientIP    string   `gorm:"size:60"                 json:"client_ip"`
 	ErrorMsg   string    `gorm:"type:text;not null"      json:"error_msg"`
 	StackTrace string    `gorm:"type:text"               json:"stack_trace"`

client/lib/screens/public/public_product_screen.dart

@@ -70,13 +70,22 @@ class _PublicProductScreenState extends State<PublicProductScreen> {
         title: title,
         hint: hint,
         onSubmit: (msg) async {
+          final shopNo = (_data?['shop'] as Map<String, dynamic>?)?['code'] as String? ?? '';
+          final productName = _data?['name'] as String? ?? '';
+          final productCode = _data?['code'] as String? ?? '';
+          final productInfo = [
+            if (productName.isNotEmpty) productName,
+            if (productCode.isNotEmpty) productCode,
+            if (widget.publicId.isNotEmpty) widget.publicId,
+          ].join(' / ');
           await _dio.post(
             '${AppConfig.apiBaseUrl}/public/errors',
             data: {
               'error_type': errorType,
               'error_msg': msg,
               'platform': 'web-scan',
-              'shop_no': (_data?['shop'] as Map<String, dynamic>?)?['code'] as String? ?? '',
+              'shop_no': shopNo,
+              if (productInfo.isNotEmpty) 'product_info': productInfo,
             },
           );
         },