Test longer histories, then integrate the tighter source interval

The 24-control qualification is complete. Do not restart it or reuse its unused allowance. The separately frozen six-source screen keeps the earlier inputs, training certificates, clock limits and per-bound time limit. Report compatible bounds and all failed attempts.

If it completes, continue the prefix-specific source integration, including zero-width domains and exact packet boundaries. A complete prediction comparison still follows that qualification. The width target and observed prediction gates remain unchanged.