update

web/svelte.config.js

@@ -1,6 +1,12 @@
 import adapter from '@sveltejs/adapter-static';
-
 /** @type {import('@sveltejs/kit').Config} */
-const config = { kit: { adapter: adapter() } };
-
+const config = {
+  kit: {
+    adapter: adapter({
+      pages: 'build',
+      assets: 'build',
+      fallback: '200.html' // SPA fallback for all unknown paths
+    })
+  }
+};
 export default config;