Chore: CDN cache & prefer compare and write

Build/build-public.ts

@@ -9,6 +9,7 @@ import type { TreeType, TreeTypeArray } from './lib/tree-dir';
 import { OUTPUT_MOCK_DIR, OUTPUT_MODULES_DIR, PUBLIC_DIR, ROOT_DIR } from './constants/dir';
 import { mkdirp, writeFile } from './lib/misc';
 import picocolors from 'picocolors';
+import { compareAndWriteFile } from './lib/create-file';
 
 const mockDir = path.join(ROOT_DIR, 'Mock');
 const modulesDir = path.join(ROOT_DIR, 'Modules');
@@ -46,6 +47,19 @@ export const buildPublic = task(require.main === module, __filename)(async (span
     .traceChild('generate index.html')
     .traceAsyncFn(() => treeDir(PUBLIC_DIR).then(generateHtml));
 
+  await compareAndWriteFile(
+    span,
+    [
+      '/*',
+      '  cloudflare-cdn-cache-control: public, max-age=150, stale-while-revalidate=60, stale-if-error=30',
+      'https://:project.pages.dev/*',
+      '  X-Robots-Tag: noindex',
+      '/Modules/*',
+      '  content-type: text/plain; charset=utf-8'
+    ],
+    path.join(PUBLIC_DIR, '_headers')
+  );
+
   return writeFile(path.join(PUBLIC_DIR, 'index.html'), html);
 });