ReviveDB: Supabase backups restore-tested against the source schema

ReviveDB backs up Supabase projects on Postgres 17 outside Supabase, and restores every database backup into a temporary PostgreSQL database before it counts as verified. The restore is compared with an inventory of the source: tables, rows, columns, constraints, indexes, sequences, views, functions, triggers, RLS policies, grants and extensions. Row counts alone miss a restore that loses a constraint or a policy.

Each backup run uses its own short-lived, read-only Postgres role that also reads rows behind row-level security. The same recovery point holds Auth data, Storage files and Edge…