feat: add configuration backup, sync, and version checker services

- Implemented ConfigBackupService for backing up local configuration files.
- Added ConfigSyncService to download configuration files from GitHub with remote-first conflict resolution.
- Created VersionChecker to check application version against the latest GitHub release with caching.
- Introduced security validation utilities for input validation to prevent common vulnerabilities.
- Developed utility functions to start and stop Docusaurus documentation server.

ccw/docs-site/docusaurus.config.ts

@@ -15,12 +15,18 @@ const config: Config = {
 
   trailingSlash: false,
 
-  onBrokenLinks: 'throw',
+  onBrokenLinks: 'warn',
   onBrokenMarkdownLinks: 'warn',
 
   i18n: {
     defaultLocale: 'en',
     locales: ['en', 'zh'],
+    localeConfigs: {
+      zh: {
+        label: '简体中文',
+        htmlLang: 'zh-CN',
+      },
+    },
   },
 
   presets: [
@@ -28,6 +34,8 @@ const config: Config = {
       '@docusaurus/preset-classic',
       {
         docs: {
+          path: 'docs',
+          routeBasePath: '/',
           sidebarPath: './sidebars.ts',
           editUrl: 'https://github.com/ccw/docs/tree/main/',
         },