refactor(布局): 移除AppLayout中的title必填项并调整样式

移除AppLayout组件中title属性的必填限制，并根据是否传入title动态调整页面布局样式。同时，在多个页面中移除了不再需要的title属性，以简化代码并提高组件灵活性。

@@ -24,7 +24,6 @@ declare module 'vue' {
     SummerCampCard: typeof import('./components/ui/SummerCampCard.vue')['default']
     TermsPopup: typeof import('./components/ui/TermsPopup.vue')['default']
     VanButton: typeof import('vant/es')['Button']
-    VanCell: typeof import('vant/es')['Cell']
     VanCellGroup: typeof import('vant/es')['CellGroup']
     VanCheckbox: typeof import('vant/es')['Checkbox']
     VanDatePicker: typeof import('vant/es')['DatePicker']

+<!--
+ * @Date: 2025-03-20 20:36:36
+ * @LastEditors: hookehuyr hookehuyr@gmail.com
+ * @LastEditTime: 2025-03-24 14:05:01
+ * @FilePath: /mlaj/src/components/layout/AppLayout.vue
+ * @Description: 文件描述
+-->
 <template>
   <div class="bg-gradient-to-br from-green-50 via-teal-50 to-blue-50 min-h-screen pb-16">
     <GradientHeader
+      v-if="title"
       :title="title"
       :showBackButton="showBackButton"
       :onBack="handleBack"
       :rightContent="rightContent"
     />
-    <main class="pb-16">
+    <main :class="{ 'pb-16': title, 'py-4': !title }">
       <slot></slot>
     </main>
     <BottomNav v-if="!hideBottomNav" />
@@ -20,7 +28,7 @@ import GradientHeader from '../ui/GradientHeader.vue'
 const props = defineProps({
   title: {
     type: String,
-    required: true
+    required: false
   },
   showBackButton: {
     type: Boolean,

@@ -6,7 +6,7 @@
  * @Description: 文件描述
 -->
 <template>
-  <AppLayout title="帮助中心">
+  <AppLayout>
     <div class="bg-gradient-to-br from-green-50 via-green-100/30 to-blue-50/30 min-h-screen">
       <div class="px-4 py-6">
         <FrostedGlass class="rounded-xl overflow-hidden">

 <!--
  * @Date: 2025-03-24 12:56:07
  * @LastEditors: hookehuyr hookehuyr@gmail.com
- * @LastEditTime: 2025-03-24 13:07:40
+ * @LastEditTime: 2025-03-24 14:05:34
  * @FilePath: /mlaj/src/views/profile/MessagesPage.vue
  * @Description: 消息中心页面
 -->
 <template>
-  <AppLayout title="消息中心">
+  <AppLayout>
     <div class="bg-gradient-to-br from-green-50 via-green-100/30 to-blue-50/30 min-h-screen">
       <van-list
         v-model:loading="loading"

 <!--
  * @Date: 2025-03-24 13:04:21
  * @LastEditors: hookehuyr hookehuyr@gmail.com
- * @LastEditTime: 2025-03-24 13:22:18
+ * @LastEditTime: 2025-03-24 14:05:18
  * @FilePath: /mlaj/src/views/profile/SettingsPage.vue
  * @Description: 用户设置页面
 -->
 <template>
-  <AppLayout title="设置">
+  <AppLayout>
     <div class="bg-gradient-to-br from-green-50 via-green-100/30 to-blue-50/30 min-h-screen">
       <div class="px-4 py-6">
         <FrostedGlass class="rounded-xl overflow-hidden">