OptionalconnectionDefaults to getEnv('SUPABASE_DB_URL') (from @supabase/middleware).
OptionalpoolPool size and checkout timeout for this connection string. Checked when
the middleware is built; an invalid value throws a RangeError then.
Entries whose options resolve to the same values share one pool.
OptionalerrorsHow much of an error to include in a short-circuit response body.
Configuration for withPostgresClient.