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

@@ -17,16 +17,17 @@ func NewErrorReportHandler(db *gorm.DB) *ErrorReportHandler {
 }
 
 type submitErrorRequest struct {
-	ErrorType  string `json:"error_type"  binding:"required"`
-	AppVersion string `json:"app_version"`
-	Platform   string `json:"platform"`
-	Username   string `json:"username"`
-	ShopID     uint64 `json:"shop_id"`
-	ShopNo     string `json:"shop_no"`
-	Role       string `json:"role"`
-	ErrorMsg   string `json:"error_msg" binding:"required"`
-	StackTrace string `json:"stack_trace"`
-	OccurredAt int64  `json:"occurred_at"` // Unix 毫秒
+	ErrorType   string `json:"error_type"   binding:"required"`
+	AppVersion  string `json:"app_version"`
+	Platform    string `json:"platform"`
+	Username    string `json:"username"`
+	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
 }
 
 // Submit POST /api/v1/public/errors
@@ -49,17 +50,18 @@ func (h *ErrorReportHandler) Submit(c *gin.Context) {
 	}
 
 	report := model.ErrorReport{
-		ErrorType:  req.ErrorType,
-		AppVersion: req.AppVersion,
-		Platform:   req.Platform,
-		Username:   req.Username,
-		ShopID:     req.ShopID,
-		ShopNo:     req.ShopNo,
-		Role:       req.Role,
-		ClientIP:   c.ClientIP(),
-		ErrorMsg:   req.ErrorMsg,
-		StackTrace: stack,
-		OccurredAt: occurredAt,
+		ErrorType:   req.ErrorType,
+		AppVersion:  req.AppVersion,
+		Platform:    req.Platform,
+		Username:    req.Username,
+		ShopID:      req.ShopID,
+		ShopNo:      req.ShopNo,
+		Role:        req.Role,
+		ProductInfo: req.ProductInfo,
+		ClientIP:    c.ClientIP(),
+		ErrorMsg:    req.ErrorMsg,
+		StackTrace:  stack,
+		OccurredAt:  occurredAt,
 	}
 
 	if err := h.db.Create(&report).Error; err != nil {

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,