Captures the design + quantified STIG payoff (~21 mount/partition rules notapplicable/waived -> pass, per reports/stig-arf.xml), the writable-set + noexec/nosuid/nodev flag matrix, the kiosk-/tmp-noexec prerequisite, the fstab-vs-runtime OVAL note, and that it's bench-gated after TPM enrolment (#11).