chore: upgrade VuePress to 2.0 RC and modernize docs site

- Upgrade VuePress from 2.0.0-beta.36 to 2.0.0-rc.26
- Upgrade dependencies: Prettier 3.x, Husky 9.x, pretty-quick 4.x
- Add @vuepress/bundler-vite and @vuepress/theme-default
- Migrate config.ts to new VuePress 2 RC format
- Add custom dark tech theme with SCSS styles
- Update Husky hooks to v9 format
- Update type imports (NavbarConfig → NavbarOptions, etc.)

Author: xz-dev

.husky/pre-commit

@@ -1,4 +1 @@
-#!/bin/sh
-. "$(dirname "$0")/_/husky.sh"
-
 pnpm format:staged

.vuepress/config.ts

@@ -1,8 +1,9 @@
-import type { DefaultThemeOptions } from 'vuepress';
+import { viteBundler } from '@vuepress/bundler-vite';
+import { defaultTheme } from '@vuepress/theme-default';
 import { defineUserConfig } from 'vuepress';
 import { navbar, sidebar } from './configs';
 
-export default defineUserConfig<DefaultThemeOptions>({
+export default defineUserConfig({
   // 站点配置
   lang: 'zh-CN',
   title: 'Distributed Update System',
@@ -23,9 +24,11 @@ export default defineUserConfig<DefaultThemeOptions>({
     },
   },
 
+  // 打包工具
+  bundler: viteBundler(),
+
   // 主题配置
-  theme: '@vuepress/theme-default',
-  themeConfig: {
+  theme: defaultTheme({
     logo: '/logo.png',
     repo: 'DUpdateSystem',
     locales: {
@@ -60,7 +63,7 @@ export default defineUserConfig<DefaultThemeOptions>({
 
         // a11y
         openInNewWindow: '在新窗口打开',
-        toggleDarkMode: '切换夜间模式',
+        toggleColorMode: '切换颜色模式',
         toggleSidebar: '切换侧边栏',
       },
 
@@ -79,5 +82,7 @@ export default defineUserConfig<DefaultThemeOptions>({
 
     docsRepo: 'DUpdateSystem/docs',
     docsBranch: 'master',
-  },
+    colorMode: 'dark',
+    colorModeSwitch: true,
+  }),
 });

.vuepress/configs/navbar/en.ts

@@ -1,6 +1,6 @@
-import type { NavbarConfig } from '@vuepress/theme-default';
+import type { NavbarOptions } from '@vuepress/theme-default';
 
-export const en: NavbarConfig = [
+export const en: NavbarOptions = [
   { text: 'User Guide', link: '/en/guide/' },
   { text: 'FAQ', link: '/en/faq/' },
   { text: 'Developer Documentation', link: '/en/dev/' },

.vuepress/configs/navbar/zh.ts

@@ -1,6 +1,6 @@
-import type { NavbarConfig } from '@vuepress/theme-default';
+import type { NavbarOptions } from '@vuepress/theme-default';
 
-export const zh: NavbarConfig = [
+export const zh: NavbarOptions = [
   { text: '用户指南', link: '/guide/' },
   { text: '常见问题', link: '/faq/' },
   { text: '开发者文档', link: '/dev/' },

.vuepress/configs/sidebar/en.ts

@@ -1,6 +1,6 @@
-import type { SidebarConfig } from '@vuepress/theme-default';
+import type { SidebarOptions } from '@vuepress/theme-default';
 
-export const en: SidebarConfig = [
+export const en: SidebarOptions = [
   '/en/guide/README.md',
   '/en/faq/README.md',
   {

.vuepress/configs/sidebar/zh.ts

@@ -1,6 +1,6 @@
-import type { SidebarConfig } from '@vuepress/theme-default';
+import type { SidebarOptions } from '@vuepress/theme-default';
 
-export const zh: SidebarConfig = [
+export const zh: SidebarOptions = [
   '/guide/README.md',
   '/faq/README.md',
   {