feat(用户协议): 添加用户服务协议弹窗组件并集成到隐私协议中

- 创建独立的用户服务协议弹窗组件
- 在隐私协议中集成该组件并实现联动逻辑
- 为隐私协议添加底部确认按钮

@@ -49,5 +49,6 @@ declare module 'vue' {
     RouterView: typeof import('vue-router')['RouterView']
     SearchPopup: typeof import('./src/components/SearchPopup.vue')['default']
     TabBar: typeof import('./src/components/TabBar.vue')['default']
+    UserServiceAgreementModal: typeof import('./src/components/UserServiceAgreementModal.vue')['default']
   }
 }

@@ -78,13 +78,27 @@
           <view class="content-text" v-html="contentText"></view>
         </view>
       </scroll-view>
+      
+      <!-- 底部按钮 -->
+      <view class="modal-footer">
+        <nut-button type="primary" block color="#fb923c" @click="onCloseContentModal">
+          我已阅读并同意
+        </nut-button>
+      </view>
     </view>
   </nut-popup>
+
+  <!-- 用户服务协议弹窗 -->
+  <UserServiceAgreementModal
+    v-model:visible="showUserAgreementModal"
+    @confirm="onUserAgreementConfirm"
+  />
 </template>
 
 <script setup>
 import { ref, computed, watch, defineEmits, defineProps } from 'vue'
 import Taro from '@tarojs/taro'
+import UserServiceAgreementModal from './UserServiceAgreementModal.vue'
 
 // Props
 const props = defineProps({
@@ -99,6 +113,7 @@ const emit = defineEmits(['update:visible', 'confirm', 'cancel'])
 
 // 响应式数据
 const agreed = ref(false)
+const showUserAgreementModal = ref(false)
 
 // 监听弹框显示状态，每次打开时重置agreed
 watch(() => props.visible, (newVisible) => {
@@ -229,9 +244,7 @@ const contentText = ref('')
  * 点击用户服务协议
  */
 const onUserAgreementClick = () => {
-  contentTitle.value = '用户服务协议'
-  contentText.value = userAgreementContent
-  showContentModal.value = true
+  showUserAgreementModal.value = true
 }
 
 /**
@@ -262,6 +275,13 @@ const onCancel = () => {
 }
 
 /**
+ * 用户服务协议确认
+ */
+const onUserAgreementConfirm = () => {
+  showUserAgreementModal.value = false
+}
+
+/**
  * 确认操作
  */
 const onConfirm = () => {
@@ -508,4 +528,13 @@ const onConfirm = () => {
   border-top: 2rpx solid #e5e5e5;
   font-style: italic;
 }
+
+.modal-footer {
+  padding: 32rpx;
+  border-top: 1rpx solid #eee;
+  background: white;
+  position: sticky;
+  bottom: 0;
+  z-index: 10;
+}
 </style>