Diagnosing the six remaining stretches

This study tests a specific numerical obstacle: the stopping calculation crossing an IMU packet boundary. It covers all nineteen unfinished fit endpoints across the six stretches, with two passing controls first.

The plan fixes the computation at 546 native evaluations maximum, four numerical threads and no retries. Software and compiled-motion controls have passed. The worker preserves earlier results and publishes its diagnostic report automatically on completion. No scientific disposition changes merely because a local boundary check passes.

Launcher: analysis/tests/ilvis0_boundary_diagnostic_worker.py. Runtime state is kept in data/ilvis0-boundary-diagnostic-20261016/. --package-only copies verified completed results without predictions, optimization or original-data decoding.