Фикс 404 при обновелнии страницы

build/prepare-sites-build.mjs

@@ -1,5 +1,5 @@
 import { copyFile, mkdir } from 'node:fs/promises';
-import { resolve } from 'node:path';
+import { dirname, resolve } from 'node:path';
 
 const root = process.cwd();
 const outputDirectory = resolve(root, 'dist');
@@ -20,13 +20,17 @@ await copyFile(
     resolve(serverDirectory, 'index.js'),
 );
 
-// Emit an extensionless HTML match for every client-side route. This keeps
-// browser refreshes working even when the asset layer handles navigations
-// before the Worker gets a chance to return the SPA fallback.
+// Emit both clean-URL and directory-index shells for every client-side route.
+// The directory copy also supports basic Nginx static configurations that do
+// not rewrite missing paths to the root application shell.
 await Promise.all(
     browserRoutes.map(async (route) => {
         const routeFile = resolve(outputDirectory, `${route}.html`);
-        await mkdir(resolve(routeFile, '..'), { recursive: true });
+        const routeDirectory = resolve(outputDirectory, route);
+
+        await mkdir(dirname(routeFile), { recursive: true });
+        await mkdir(routeDirectory, { recursive: true });
         await copyFile(appShell, routeFile);
+        await copyFile(appShell, resolve(routeDirectory, 'index.html'));
     }),
 );