fix(client): 商品公开页加载后更新浏览器标题为商品名称

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

CHANGELOG.md

@@ -5,6 +5,17 @@ All notable changes to this project will be documented in this file.
 The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/),
 and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html).
 
+## [1.0.46] - 2026-06-15
+
+### 修复
+- 微信内打开商品页时顶部标题栏显示商品名称，不再显示"岩美"
+
+## [1.0.45] - 2026-06-15
+
+### 修复
+- 修复微信分享卡片标题仍显示"岩美"的问题（HTML 缩进导致字符串匹配失败）
+- 微信分享卡片描述去掉"扫码验真"后缀
+
 ## [1.0.44] - 2026-06-15
 
 ### 改进

backend/internal/handler/public.go

@@ -6,6 +6,7 @@ import (
 	"html"
 	"net/http"
 	"os"
+	"regexp"
 	"strconv"
 	"strings"
 
@@ -315,7 +316,9 @@ func (h *PublicHandler) ProductPage(c *gin.Context) {
 	ogTags := buildProductOG(product, shopName, config.C.Storage.PublicURL)
 	ogTitle := buildOGTitle(product)
 	// 同时替换 <title> 标签，微信/飞书等平台有时优先读 <title> 而非 og:title
-	out := strings.Replace(idxHTML, "<title>岩美</title>", "<title>"+html.EscapeString(ogTitle)+"</title>", 1)
+	// 用正则替换避免缩进空格导致字符串不匹配
+	titleRe := regexp.MustCompile(`<title>[^<]*</title>`)
+	out := titleRe.ReplaceAllString(idxHTML, "<title>"+html.EscapeString(ogTitle)+"</title>")
 	out = strings.Replace(out, "</head>", ogTags+"</head>", 1)
 	// 禁止缓存，确保爬虫每次都能拿到最新 OG 标签
 	c.Header("Cache-Control", "no-store")

client/lib/screens/public/public_product_screen.dart

@@ -2,6 +2,7 @@ import 'dart:math' as math;
 import 'package:dio/dio.dart';
 import 'package:flutter/gestures.dart';
 import 'package:flutter/material.dart';
+import 'package:flutter/services.dart';
 import 'package:go_router/go_router.dart';
 import 'package:url_launcher/url_launcher.dart';
 import '../../core/config/app_config.dart';
@@ -54,6 +55,13 @@ class _PublicProductScreenState extends State<PublicProductScreen> {
       );
       final data = (resp.data as Map<String, dynamic>)['data'] as Map<String, dynamic>;
       setState(() { _data = data; _loading = false; });
+      // 更新浏览器标签标题（Flutter Web 会写 document.title）
+      final name = data['name'] as String? ?? '';
+      if (name.isNotEmpty) {
+        SystemChrome.setApplicationSwitcherDescription(
+          ApplicationSwitcherDescription(label: name, primaryColor: 0xFF8B2331),
+        );
+      }
     } catch (e) {
       setState(() { _error = e.toString(); _loading = false; });
     }