fix: 替换已弃用的 getSystemInfoSync API 并优化移动端布局

- 将所有 uni.getSystemInfoSync() 替换为新的推荐 API
  - uni.getDeviceInfo() 获取设备信息
  - uni.getWindowInfo() 获取窗口信息
  - uni.getAppBaseInfo() 获取应用基础信息
- 优化页面布局适配移动端小程序
  - page 添加 height: 100% 和 overflow: hidden
  - 主页面使用 height: 100vh 替代 min-height
  - 移除滚动条显示（::-webkit-scrollbar）
  - 添加 flex-shrink: 0 防止卡片收缩
- 修复隐藏滚动条，提升移动端体验

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

mini-program/src/App.vue

@@ -11,10 +11,15 @@ onLaunch(async () => {
   console.log('App Launch')
   const store = useAppStore()
   await store.initialize()
-  const systemInfo = uni.getSystemInfoSync()
-  statusBarHeight.value = systemInfo.statusBarHeight || 20
-  safeAreaTop.value = systemInfo.safeAreaInsets?.top || systemInfo.statusBarHeight || 20
-  safeAreaBottom.value = systemInfo.safeAreaInsets?.bottom || 0
+
+  // 使用新的推荐 API 替代已弃用的 getSystemInfoSync
+  const deviceInfo = uni.getDeviceInfo()
+  const windowInfo = uni.getWindowInfo()
+  const appBaseInfo = uni.getAppBaseInfo()
+
+  statusBarHeight.value = windowInfo.statusBarHeight || 20
+  safeAreaTop.value = windowInfo.safeAreaInsets?.top || windowInfo.statusBarHeight || 20
+  safeAreaBottom.value = windowInfo.safeAreaInsets?.bottom || 0
   uni.setStorageSync('statusBarHeight', statusBarHeight.value)
   uni.setStorageSync('safeAreaTop', safeAreaTop.value)
   uni.setStorageSync('safeAreaBottom', safeAreaBottom.value)
@@ -35,8 +40,9 @@ page {
   background-color: #0F071A;
   color: #F3E8FF;
   font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
-  padding-top: 0;
-  padding-bottom: 0;
+  height: 100%;
+  overflow: hidden;
+  -webkit-overflow-scrolling: touch;
 }
 
 /* 星空背景 */
@@ -235,16 +241,17 @@ page {
 }
 
 ::-webkit-scrollbar {
-  width: 4rpx;
+  width: 0;
+  height: 0;
+  display: none;
 }
 
 ::-webkit-scrollbar-thumb {
-  background: rgba(168, 85, 247, 0.3);
-  border-radius: 10rpx;
+  background: transparent;
 }
 
 ::-webkit-scrollbar-track {
-  background: rgba(168, 85, 247, 0.05);
+  background: transparent;
 }
 
 @keyframes fadeIn {