Setup needed

The application is running, but it has no configuration. Copy .env.example to .env.local and fill in the values, then restart the dev server.

Missing:

• NEXT_PUBLIC_SUPABASE_URL + NEXT_PUBLIC_SUPABASE_ANON_KEY
• SUPABASE_SERVICE_ROLE_KEY
• ANTHROPIC_API_KEY

Full sequence in RUNNING.md. Supabase must be created in eu-central-1 before anything else — the region is fixed at creation.