`\bsocat\b` under IGNORECASE matched "SOCAT", the Surface Ocean CO2 Atlas,
in every oceanography skill of a 2,110-file research bundle (17 critical
findings in one file), burying the bundle's real issues under noise. A real
socat relay always names an address type (TCP:/UDP:/OPENSSL:/EXEC:/SYSTEM:/
PTY:/UNIX-…:), so the pattern now requires one on the same line. `nc -l` /
`ncat -l` are unchanged. Scanner version bumped to v5 so cached verdicts
re-scan.