feat: migrate static pages to native tabbar

packages/learning/pages/center/index.wxml

@@ -0,0 +1,44 @@
+<view class="learning-page">
+  <view class="hero-card">
+    <text class="hero-card__title">{{heroTitle}}</text>
+    <text class="hero-card__desc">{{heroDescription}}</text>
+    <view class="stats-row">
+      <view class="stat-pill" wx:for="{{summaryCards}}" wx:key="key">
+        <text class="stat-pill__value">{{item.value}}</text>
+        <text class="stat-pill__label">{{item.label}}</text>
+      </view>
+    </view>
+  </view>
+
+  <view class="quick-grid">
+    <view
+      class="quick-card"
+      wx:for="{{quickDeck}}"
+      wx:key="key"
+      data-route="{{item.route}}"
+      bindtap="handleRouteTap"
+    >
+      <text class="quick-card__tag">{{item.domain === 'tcm' ? '中医继续学习' : '易学继续学习'}}</text>
+      <text class="quick-card__title">{{item.title}}</text>
+      <text class="quick-card__desc">{{item.description}}</text>
+    </view>
+  </view>
+
+  <view class="section-card">
+    <text class="section-card__title">最近学习动作</text>
+    <view
+      class="timeline-item"
+      wx:for="{{recentItems}}"
+      wx:key="key"
+      data-route="{{item.route}}"
+      bindtap="handleRouteTap"
+    >
+      <view class="timeline-item__icon">读</view>
+      <view class="timeline-item__body">
+        <text class="timeline-item__title">{{item.title}}</text>
+        <text class="timeline-item__desc">{{item.description}}</text>
+      </view>
+      <text class="timeline-item__arrow">></text>
+    </view>
+  </view>
+</view>