feat: 支持游客免登录浏览核心页面

未登录用户可先浏览衣橱、穿搭、运势、分享等内容，登录改为用户主动选择，并在登录页增加协议勾选确认与暂不登录入口。

miniprogram/pages/horoscope/horoscope.wxml

@@ -1,6 +1,7 @@
 <view class="page page-flex">
   <navigation-bar title="每日运势" back="{{false}}" scrolled="{{navScrolled}}">
-    <view slot="right" class="nav-action" bindtap="onGoProfile">去设置生日</view>
+    <view wx:if="{{guest}}" slot="right" class="nav-action" bindtap="onGuestLogin">登录</view>
+    <view wx:else slot="right" class="nav-action" bindtap="onGoProfile">去设置生日</view>
   </navigation-bar>
 
   <scroll-view scroll-y class="scroll-body pb-tab" bindscroll="onNavScroll">
@@ -10,6 +11,14 @@
       <view class="display">每日运势</view>
     </view>
 
+    <!-- 游客态提示条：未登录也可先浏览，登录由用户自行选择 -->
+    <view wx:if="{{guest}}" class="guest-bar" bindtap="onGuestLogin">
+      <view class="icon icon-lock"></view>
+      <text class="gb-t">浏览模式 · 以下为示例运势</text>
+      <text class="gb-a">登录</text>
+      <view class="icon icon-chevron-right"></view>
+    </view>
+
     <!-- 骨架屏 -->
     <view wx:if="{{loading}}" class="hs-skel">
       <view class="sk sk-ln" style="width: 38%; height: 28rpx;"></view>
@@ -46,6 +55,7 @@
         <view class="hs-zodiac">
           <view class="icon icon-sparkles"></view>
           <text class="t-xl">{{horoscope.zodiac}}</text>
+          <text wx:if="{{guest}}" class="pill">示例</text>
         </view>
         <text class="hs-date num">{{statDate}}</text>
       </view>
@@ -136,6 +146,11 @@
       <view class="hs-foot">
         <view class="btn btn--ghost btn--block" bindtap="onGenerate">生成今日推荐穿搭</view>
       </view>
+
+      <view wx:if="{{guest}}" class="guest-foot" bindtap="onGuestLogin">
+        <text>登录并设置生日，查看你的专属运势</text>
+        <text class="gf-a">去登录</text>
+      </view>
     </block>
 
     <view class="gap-64"></view>