fix(backend): 商品公开页移除「在 App 中查看」链接

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01JJ1g8XV1YhhmHRzhwWEW7o

backend/internal/handler/public_page.go

@@ -192,7 +192,6 @@ type productPageVM struct {
 	ShopAddr  string
 	ShopHours string
 	ShopWx    string
-	AppURL    string
 }
 
 // ProductPage GET /product/:public_id
@@ -235,7 +234,6 @@ func (h *PublicHandler) ProductPage(c *gin.Context) {
 		Origin:    d.Origin,
 		ShelfLife: d.ShelfLife,
 		Storage:   d.Storage,
-		AppURL:    "/app/product/" + p.PublicID,
 	}
 	for _, img := range p.Images {
 		if img.URL != "" {

backend/internal/handler/public_page_test.go

@@ -57,9 +57,9 @@ func TestProductPage_SSR(t *testing.T) {
 	// OG 标签（og:url 指向 SSR 短链）
 	assert.Contains(t, body, `property="og:title"`)
 	assert.Contains(t, body, "/product/pub-ssr-001")
-	// 门店互跳 + App 兜底链接
+	// 门店互跳；「在 App 中查看」已移除（2026-07-07 用户拍板）
 	assert.Contains(t, body, "/shop/"+shop.Code)
-	assert.Contains(t, body, "/app/product/pub-ssr-001")
+	assert.NotContains(t, body, "/app/product/")
 	// 敏感字段零暴露（成本/进价永不出现在公开页）
 	for _, s := range []string{"cost", "purchase_price", "profit"} {
 		assert.NotContains(t, body, s, "公开页不得出现敏感字段名 %s", s)

backend/internal/handler/templates/public_product.html

@@ -187,7 +187,7 @@
 {{end}}
   <footer class="foot">
     <div class="foot-rule">◆</div>
-    <div>Powered by <a class="brand" href="https://jiu.51yanmei.com">岩美科技</a>{{if .AppURL}} · <a href="{{.AppURL}}">在 App 中查看</a>{{end}}</div>
+    <div>Powered by <a class="brand" href="https://jiu.51yanmei.com">岩美科技</a></div>
     <div class="icp"><a href="https://beian.miit.gov.cn" target="_blank" rel="noopener">京ICP备2026039814号</a></div>
   </footer>
 </div>