Seven migrations, 0296 through 0302, apply to an empty database in order and
install both triggers. The allocation had been written down as four, and every
later document that quoted it inherited a range that had already moved.
`scripts/verify-v137-adversarial.ts` is the allocation as a runnable artifact
rather than a table somebody keeps in step by hand. It names all seven, refuses
a number allocated twice, asserts each trigger is in the migration that claims
it, and counts every release inventory against a written-down number instead of
against "more than zero" — a list that lost half its entries satisfies a
non-empty check and fails this one. It also refuses to report success when it
ran no checks at all.
It found two things on its first run. Eleven handler entries looked like
duplicates because the key ignored the action, and an `[id]` route carries an
update and a delete as separate contracts; the key includes the action now. The
journey-count leg was then falsified deliberately by expecting nine, which
failed on the count and exited non-zero.
The `push_attempts` principals are declared optional in the schema and NOT NULL
in the database, and that is deliberate rather than drift. The attribution guard
is a BEFORE INSERT trigger, so a write omitting both has them filled from the
legacy mirror before the constraint is checked; requiring them in the schema
would force every established self-delivery writer to name a pair it has no
opinion about, and relaxing the columns would let a partial pair reach the
table, which is what the trigger refuses. `migrate diff` reports the difference
because it cannot see triggers, so the reason is written at the columns and
names the test that proves the accommodation still works.
Measured rather than assumed: applying trunk's chain to its own empty database
reports the same classes of diff — truncated index names, timestamp precision,
foreign keys re-stated. The release adds eight lines to that, seven of them in
classes trunk already carries and one of them the deliberate pair above.
