Connect UNIS One to Firebase

The app needs its Firebase settings before anyone can sign in. In the project folder:

1. Copy .env.example to a new file called .env.local.
2. Paste in the values from Firebase console → Project settings → Your apps → Web app.
3. Stop and restart npm run dev.

NEXT_PUBLIC_FIREBASE_API_KEY=
NEXT_PUBLIC_FIREBASE_AUTH_DOMAIN=
NEXT_PUBLIC_FIREBASE_PROJECT_ID=
NEXT_PUBLIC_FIREBASE_STORAGE_BUCKET=
NEXT_PUBLIC_FIREBASE_MESSAGING_SENDER_ID=
NEXT_PUBLIC_FIREBASE_APP_ID=