feat: establish production SaaS foundation

supabase/seed.sql

@@ -1,3 +1,10 @@
+insert into app_private.environment_safety (id, environment, allow_destructive_tests)
+values (true, 'local', true)
+on conflict (id)
+do update set environment = excluded.environment,
+              allow_destructive_tests = excluded.allow_destructive_tests,
+              updated_at = now();
+
 insert into public.tenants (id, slug, name, status, mode)
 values (
   '00000000-0000-0000-0000-000000000001',