[migrate] upgrade to TypeScript 6, Node.js 24, PNPM 11, Next.js 16, Koa 3, MobX-React-helper 0.5, MobX-GitHub 0.7, Undici 8, Globals 17, Lint-Staged 17, ESLint 10, Sentry 10 & other latest Upstream packages/actions

[Copilot]

Dark theme failed to activate on first load when the user's OS preference was dark — requiring a manual toggle to trigger it. Additionally, the production build was broken on Node.js 24 due to a removed Dirent API.

Dark theme (models/System.ts)

MobX reaction only fires on changes, not on initial value. If colorScheme was already 'dark' (from matchMedia at init time), no change ever occurred, so document.documentElement.dataset.bsTheme was never set.

Fix: Replace reaction with autorun, which runs immediately on registration and on every subsequent change:

// Before — never fires if colorScheme doesn't change from its initial value
disposer = reaction(
  () => this.colorScheme,
  scheme => { document.documentElement.dataset.bsTheme = scheme; ... },
);

// After — fires immediately on init AND on changes
disposer =
  !isServer() &&
  autorun(() => {
    document.documentElement.dataset.bsTheme = this.colorScheme;
    setCookie('colorScheme', this.colorScheme);
  });

Also adds !isServer() guard (prevents document access during SSR) and optional chaining on matchColorScheme() calls.

Article page build (pages/api/core.ts)

Dirent.path returns undefined in Node.js ≥ 24 — it was replaced by Dirent.parentPath. This caused readdir to be called with 'pagesundefined/...', crashing static generation for /article.

Fix: Use node.parentPath with a fallback to the legacy node.path for backward compatibility:

const parentPath = node.parentPath ?? (node as unknown as { path: string }).path;

• Fixes article 页面暗色主题响应失败 #54

Human changes

1. [migrate] upgrade to TypeScript 6, Node.js 24, PNPM 11, Next.js 16, Koa 3, MobX-React-helper 0.5, MobX-GitHub 0.7, Undici 8, Globals 17, Lint-Staged 17, ESLint 10, Sentry 10 & other latest Upstream packages/actions
2. [migrate] replace Babel with SWC to compile ES decorator (resolve 升级 Next-Bootstrap-ts 脚手架基础设施，并修复细节 bug #60)
3. [migrate] staticify Example page with SSG wrappers (resolve 页面静态化改造 #27)
4. [optimize] Folder structure & Library modules
5. [fix] some detail bugs