feat: 电子药箱小程序 - 4Tab药品管理

- 电子药箱: 药品库存管理 + 手动录入 + 今日用药打卡
- 药品百科: 搜索 + 分类筛选 + 20种药品静态数据
- 惠教中心: 4条药品使用指南课程
- 我的: 家庭成员信息管理
- 自定义TabBar + navigation-bar组件
- SVG药品分类插图

miniprogram/package-live/volc-mini-sdk/components/image-text-float/announcement/announcement.wxml

@@ -0,0 +1,27 @@
+<Drawer
+  id="announcement-drawer"
+  custom-drawer="announcement-drawer-shell"
+  needCancel="{{false}}"
+  bind:myCancel="onAnnouncementDrawerCancel"
+>
+  <view wx:if="{{visible && data}}" class="announcement-drawer {{useDarkTheme ? 'announcement-drawer-dark' : ''}}">
+    <view class="announcement-header">
+      <view class="announcement-title">{{data.Title}}</view>
+      <mp-icon bindtap="closeAnnouncementDrawer" icon="close" color="{{useDarkTheme ? '#f2f3f5' : '#1d2129'}}" size="{{20}}" class="announcement-close-icon drawer-close-shadow" />
+    </view>
+    <scroll-view scroll-y class="announcement-content">
+      <volc-rich-text
+        sdk-instance="{{sdkInstance}}"
+        html="{{data.ContentHtml}}"
+        event-name="announcement.linkClick"
+        jump-feature="announcementLink"
+        link-payload="{{data.ContentLinkPayload}}"
+        text-color="{{useDarkTheme ? '#f2f3f5' : '#1f2329'}}"
+        dark="{{useDarkTheme}}"
+      ></volc-rich-text>
+    </scroll-view>
+    <view class="announcement-footer">
+      <button class="announcement-confirm-btn" bindtap="closeAnnouncementDrawer">我知道了</button>
+    </view>
+  </view>
+</Drawer>