chore: initial commit - Supabase stack with local Docker configuration

infra/local/supabase/volumes/db/roles.sql

@@ -0,0 +1,8 @@
+-- NOTE: change to your own passwords for production environments
+\set pgpass `echo "$POSTGRES_PASSWORD"`
+
+ALTER USER authenticator WITH PASSWORD :'pgpass';
+ALTER USER pgbouncer WITH PASSWORD :'pgpass';
+ALTER USER supabase_auth_admin WITH PASSWORD :'pgpass';
+ALTER USER supabase_functions_admin WITH PASSWORD :'pgpass';
+ALTER USER supabase_storage_admin WITH PASSWORD :'pgpass';