docs(efficacy): add the score.py rescore of thin hybrid to round 4's verdicts

[braboj]

Follows #1954 and closes no issue.

docs/audits/2026-10-17-round-4.md, in the hybrid section, now gives the score.py rescore of the three thin hybrid trees with TARIFF_SECRET_KEY supplied. It includes the probes, which the direct re-run did not read. It also drops the matching "What is owed" item.

Trial	Build suite	Security probes	Data-protection probes
hybrid-1	83.7 %	1.00	1.00
hybrid-2	94.6 %	not measured	0.00
hybrid-3	82.4 %	0.82	1.00

• The rescore was taken in a root restored from the verified archive, so the registered scoring area is untouched. It used main at 8f09318, and the hidden suite at 5792094, which differs from 65bfb9a only in AMBIGUITIES.md.
• The readings and their command are archived in braboj/tariff-runs under rounds/2026-10-16-thin-sensitivity/score-py/ (049b95b).
• The other thin arms' ranges quoted in the text were read from r4-thin-scoring/security-scores: security probes 0.55 to 0.91, and data-protection probes at 1.00 only in full-3.
• hybrid-2's security reading fails at boot with No module named 'click'. Its registered reading was missing too.
• These readings are unregistered and stand beside the verdicts, which are unchanged.

No CHANGELOG entry: this is a benchmark report. run_smoke.py passes 34/34.

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