Connect Supabase to use the review console

The admin section persists review items, reviewer roles, sources, Source Passports, and audit events in Supabase. Add these values to `web/.env.local`, then run the migration.

VITE_SUPABASE_URL=https://your-project-ref.supabase.co
VITE_SUPABASE_ANON_KEY=your-public-anon-key