fix(h5): hide in-page nav titles that duplicate WeChat chrome

Keep back buttons and header layout. mini-user only hides titles on H5; partner/shop hide .app-page-title and legal titles; shared PageHeader defaults showTitle=false.

apps/mini-user/src/components/PageNavBar.tsx

@@ -10,6 +10,8 @@ type PageNavBarProps = {
   right?: ReactNode;
 };
 
+const isH5 = process.env.TARO_ENV === 'h5';
+
 /** 内页自定义导航栏（返回 + 标题 + 右侧操作），适配刘海屏 */
 export default function PageNavBar({
   title,
@@ -19,16 +21,18 @@ export default function PageNavBar({
   right,
 }: PageNavBarProps) {
   const metrics = useNavBarMetrics();
+  const showTitle = !isH5 && titleVisible;
 
   return (
     <View
       className={`page-nav-bar${solid ? ' page-nav-bar--solid' : ''}`}
       style={subPageNavBarStyle(metrics)}
+      aria-label={title}
     >
       <Text
-        className={`page-nav-bar__title${titleVisible ? ' page-nav-bar__title--visible' : ''}`}
+        className={`page-nav-bar__title${showTitle ? ' page-nav-bar__title--visible' : ''}`}
       >
-        {title}
+        {showTitle ? title : ''}
       </Text>
       <View
         className="page-nav-bar__content"

apps/mini-user/src/components/SubPageHeader.tsx

@@ -9,6 +9,8 @@ type SubPageHeaderProps = {
   right?: ReactNode;
 };
 
+const isH5 = process.env.TARO_ENV === 'h5';
+
 /** 子页面固定实底顶栏（确认订单 / 地址 / 支付 / 订单列表等） */
 export default function SubPageHeader({ title, onBack, right }: SubPageHeaderProps) {
   const metrics = useNavBarMetrics();
@@ -27,8 +29,8 @@ export default function SubPageHeader({ title, onBack, right }: SubPageHeaderPro
   }
 
   return (
-    <View className="sub-page-header" style={subPageNavBarStyle(metrics)}>
-      <Text className="sub-page-header__title">{title}</Text>
+    <View className="sub-page-header" style={subPageNavBarStyle(metrics)} aria-label={title}>
+      {!isH5 ? <Text className="sub-page-header__title">{title}</Text> : null}
       <View
         className="sub-page-header__content"
         style={subPageNavContentStyle(metrics)}

apps/mini-user/src/components/TabMainHeader.tsx

@@ -7,13 +7,15 @@ type TabMainHeaderProps = {
   extra?: ReactNode;
 };
 
-/** Tab 页顶栏：适配刘海屏 + 微信胶囊避让 */
+const isH5 = process.env.TARO_ENV === 'h5';
+
+/** Tab 页顶栏：适配刘海屏 + 微信胶囊避让；H5 不展示标题（与微信系统标题重复） */
 export default function TabMainHeader({ title, extra }: TabMainHeaderProps) {
   const metrics = useNavBarMetrics();
 
   return (
-    <View className="tab-main-header" style={navBarStyle(metrics)}>
-      <Text className="tab-main-header__title">{title}</Text>
+    <View className="tab-main-header" style={navBarStyle(metrics)} aria-label={title}>
+      {!isH5 ? <Text className="tab-main-header__title">{title}</Text> : null}
       <View
         className="tab-main-header__content"
         style={tabNavContentStyle(metrics)}