更新小程序隐私保护机制，新增手机号一键登录功能，用户需同意隐私协议后方可获取手机号。优化多个页面的登录交互，提升用户体验。调整相关配置以支持新功能。

miniprogram/pages/settings/settings.wxml

@@ -32,11 +32,15 @@
           </view>
           <view class="bind-right">
             <icon wx:if="{{phoneNumber}}" name="check" size="36" color="#34C759" customClass="bind-check"></icon>
-            <button wx:else class="get-phone-btn" open-type="getPhoneNumber" bindgetphonenumber="onGetPhoneNumber">
+            <button wx:else id="agree-settings-phone-btn" class="get-phone-btn" open-type="getPhoneNumber|agreePrivacyAuthorization" bindgetphonenumber="onGetPhoneNumber" bindagreeprivacyauthorization="onAgreePrivacyForPhone">
               一键获取
             </button>
           </view>
         </view>
+        <view class="privacy-wechat-row" wx:if="{{showPrivacyModal}}">
+          <text class="privacy-wechat-desc">为获取手机号，请先同意《用户隐私保护指引》</text>
+          <button id="agree-privacy-btn" class="privacy-agree-btn" open-type="agreePrivacyAuthorization" bindagreeprivacyauthorization="onAgreePrivacyForPhone">同意</button>
+        </view>
         
         <!-- 微信号 - 简化输入 -->
         <view class="bind-item">
@@ -117,6 +121,13 @@
         <text class="dev-switch-desc">输入 userId 切换为其他账号调试</text>
       </view>
     </view>
+    <view class="dev-switch-card" wx:if="{{isDevMode}}" bindtap="goToDevLogin">
+      <view class="dev-switch-inner">
+        <icon name="smartphone" size="40" color="#8e8e93" customClass="dev-switch-icon"></icon>
+        <text class="dev-switch-text">账户密码登录</text>
+        <text class="dev-switch-desc">输入对方手机号登录，密码可留空</text>
+      </view>
+    </view>
 
     <view class="logout-btn" wx:if="{{isLoggedIn}}" bindtap="handleLogout">退出登录</view>
   </view>