Add api/auth/register proxy request

src/routes/api/auth/register/+server.ts

@@ -0,0 +1,19 @@
+// src/routes/api/auth/login/+server.ts
+import { json } from '@sveltejs/kit';
+import { register } from '$lib/api';
+import type { RequestHandler } from './$types';
+
+export const POST: RequestHandler = async ({ request, cookies }) => {
+  const authToken = request.headers.get('App-Token');
+  if (authToken !== import.meta.env.VITE_AUTH_APP_TOKEN) {
+    return json({ error: 'Forbidden' }, { status: 403 });
+  }
+  const { username, password } = await request.json();
+  try {
+    const registerResponse = await register(username, password, cookies);
+    return json({ id: registerResponse.id, name: registerResponse.name });
+  } catch (error) {
+    return json({ error: error }, { status: 401 });
+  }
+}
+