add vote uniqueness, public key caching, relative poll timeframe, auth/rate limiting, modern UI styling, and error handling

nuxt.config.ts

@@ -0,0 +1,23 @@
+// https://nuxt.com/docs/api/configuration/nuxt-config
+export default defineNuxtConfig({
+  compatibilityDate: '2025-07-15',
+  devtools: { enabled: true },
+  vite: {
+    optimizeDeps: {
+      include: ['yjs', 'y-webrtc']
+    }
+  },
+  // ... existing config
+  nitro: {
+    storage: {
+      polls: {
+        driver: 'fs',
+        base: './.data/polls'
+      },
+      users: {
+        driver: 'fs',
+        base: './.data/users'
+      }
+    }
+  }
+})