Both surfaced when main gained two records mid-flight.
- test_record_count_is_the_expected_166 hardcoded the total, so it failed the
moment a record landed on main -- a merge turning an unrelated test red. The
real invariant is before == after; the count only needs to prove the harness
isn't parsing a stub corpus, so it is now equality plus a floor.
- The migration's "lines preserved" figure silently absorbed the generated
where-did-it-go index once that was threaded into the preamble string, jumping
507 -> 759 with no new prose preserved. It now reports the two separately:
514 lines of original prose, plus 245 generated index lines. A number that
quietly changes meaning is worse than no number.
timothy
8578dc1ca7