fix(home): 宜忌恢复点击放大+生肖移到日历/月历切换按钮旁边

1. 大框内的宜忌区域加回 bindtap=openZoom(data-type=yiji)，点击可全屏查看放大宜忌
2. 生肖（马年）从导航栏右侧移到左侧切换按钮旁边
3. 标题改为绝对定位居中，保持导航栏对称

mini/pages/home/home.wxml

@@ -1,13 +1,14 @@
 <!-- 自定义导航栏 -->
 <view class="custom-nav" style="padding-top: {{statusBarHeight}}px;">
   <view class="nav-inner" style="height: {{navBarHeight}}px;">
-    <view class="nav-toggle" bindtap="toggleView">
-      <text class="nav-toggle-text">{{viewMode === 'day' ? '月历' : '日历'}}</text>
-    </view>
-    <text class="nav-title font-chinese">老黄历</text>
-    <view class="nav-right">
+    <view class="nav-left">
+      <view class="nav-toggle" bindtap="toggleView">
+        <text class="nav-toggle-text">{{viewMode === 'day' ? '月历' : '日历'}}</text>
+      </view>
       <text class="nav-zodiac">{{dayInfo.zodiac}}年</text>
     </view>
+    <text class="nav-title font-chinese">老黄历</text>
+    <view class="nav-placeholder"></view>
   </view>
 </view>
 
@@ -64,8 +65,8 @@
                   星期{{dayItem.dayInfo.weekDay}} · {{dayItem.legalHoliday ? dayItem.legalHoliday + ' · 放假' : (dayItem.workday ? '工作日 · 上班' : '周末 · 休息')}}
                 </view>
 
-                <!-- 宜忌（在大框里面） -->
-                <view class="day-frame-yiji">
+                <!-- 宜忌（在大框里面，点击放大） -->
+                <view class="day-frame-yiji" bindtap="openZoom" data-type="yiji" data-date="{{dayItem.key}}">
                   <view class="frame-yiji-row">
                     <view class="frame-yiji-title yi">宜</view>
                     <view class="frame-yiji-items">

mini/pages/home/home.wxss

@@ -13,6 +13,13 @@
   align-items: center;
   justify-content: space-between;
   padding: 0 24rpx;
+  position: relative;
+}
+
+.nav-left {
+  display: flex;
+  align-items: center;
+  gap: 16rpx;
 }
 
 .nav-toggle {
@@ -36,6 +43,13 @@
   font-size: 34rpx;
   font-weight: 600;
   letter-spacing: 4rpx;
+  position: absolute;
+  left: 50%;
+  transform: translateX(-50%);
+}
+
+.nav-placeholder {
+  min-width: 96rpx;
 }
 
 .nav-right {
@@ -46,8 +60,9 @@
 
 .nav-zodiac {
   color: #FFFFFF;
-  font-size: 24rpx;
+  font-size: 26rpx;
   opacity: 0.9;
+  font-weight: 500;
 }
 
 .page-body {