* fix(firmware): accept the verified Binwalk and Unblob release lines
Exact --version equality rejected every build except Binwalk 3.1.0 and
Unblob 26.6.4, then stored that constant as the observed engine version.
Admit the 3.1 and 26.6 lines, keep the audited build as verified, and
report the banner that actually ran.
* chore(docs): regenerate skill metadata after firmware contract text
docs:check failed because SKILL.md lagged the Binwalk/Unblob release-line
tool descriptions.
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Co-authored-by: Cursor Agent <cursoragent@cursor.com>