Two-sided stopping checks for the remaining six stretches

All six unresolved stretches have fits that stop at closely spaced IMU packet boundaries. A smooth correction can cross a boundary and worsen a fit even when the endpoint is a real local minimum.

This candidate checks both feasible sides, allowing every nuisance parameter to move within its original bounds. It retains the existing cost and physical-position tolerances and requires fresh actual predictions. Maxima, unfinished nuisance fits, discontinuities and one-sided failures must remain failures.

The finite qualification plan fixes 43 independent software checks, one sealed batch, four numerical threads and no archival reads or fits. This is a new numerical policy candidate for an exact, supplied timing knot. The real archive's cluster of nearby knots requires a separately checked adapter before the candidate can be tested on observed data. No existing result is relabeled.

The sealed batch passed 43/43, with zero failures, errors or skipped checks. See the qualification results. The saved-clock applicability screen finds supported side geometry for every unfinished primary and repeat. Its next diagnostic plan targets all six stretches, with native adapter qualification still required.

Candidate: analysis/lll/ilvis0_boundary_stop.py. Worker: analysis/tests/ilvis0_boundary_stop_qualification_worker.py. The completed-study runtime directory is data/ilvis0-boundary-stop-qualification-20261016/; a completed batch cannot restart.