refactor: 项目结构与代码优化调整

1. 重构tabbar路由与多语言key，调整首页默认跳转
2. 拆分博客页面到subpkg目录，调整vite分包配置
3. 新增markdown、图片组件、滚动钩子等工具模块
4. 优化api类型定义与工具函数，修复图片缓存逻辑
5. 调整国际化文案与个人页面路径

src/utils/randomResources.ts

@@ -1,3 +1,5 @@
+import { sleep } from '@/utils/common'
+
 export const randomImageUrl = {
   ycy: 'https://t.alcy.cc/ycy',
   pc: 'https://t.alcy.cc/pc',
@@ -13,11 +15,12 @@ export const randomVideosUrl = {
   acg: 'https://t.alcy.cc/acg',
 }
 
-export function getPicsum(width: number = 800, height?: number) {
+export function getPicSumImages(width: number = 800, height?: number) {
+  const t = `${Date.now()}+${Math.random()}`
   if (!height) {
-    return `https://picsum.photos/${width}`
+    return `https://picsum.photos/${width}?t=${t}`
   }
-  return `https://picsum.photos/${width}/${height}`
+  return `https://picsum.photos/${width}/${height}?t=${t}`
 }
 
 /**