Added calculators

hdyc-svelte/src/hooks.server.ts

@@ -0,0 +1,31 @@
+import path from 'node:path';
+import type { Handle } from '@sveltejs/kit';
+
+const MIME_TYPES: Record<string, string> = {
+  '.js': 'application/javascript; charset=utf-8',
+  '.mjs': 'application/javascript; charset=utf-8',
+  '.css': 'text/css; charset=utf-8',
+  '.json': 'application/json; charset=utf-8',
+  '.svg': 'image/svg+xml; charset=utf-8',
+  '.woff2': 'font/woff2',
+  '.woff': 'font/woff',
+  '.ttf': 'font/ttf',
+  '.otf': 'font/otf'
+};
+
+export const handle: Handle = async ({ event, resolve }) => {
+  const response = await resolve(event);
+  if (event.url.pathname.startsWith('/_app/')) {
+    const existing = response.headers.get('content-type');
+    const hasValidHeader = existing && existing.trim().length > 0;
+    if (!hasValidHeader) {
+      const extension = path.extname(event.url.pathname).toLowerCase();
+      const mime = extension && MIME_TYPES[extension];
+      if (mime) {
+        response.headers.set('content-type', mime);
+      }
+    }
+  }
+
+  return response;
+};