Revoking the sequence grant would strip a privilege a healthy instance had
before this migration ran — the grant it adds is indistinguishable in the
catalog from the one ALTER DEFAULT PRIVILEGES gives at creation time — so the
down is a comment, matching the other grant-only migrations.
The mirror rewrite is spread over three sites that have to agree and fails
silently when they don't, so it gets a test: a draft carrying both path keys
has both moved, and one carrying neither mirror does not gain one. It reads
the value back over HTTP rather than with `sqlx::query!`, which would need an
offline cache entry of its own.
Also drops twelve `.sqlx` entries this branch added and then superseded, and
corrects the doc and openapi text that still described only the typed path
being rewritten.
Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>