v1.9.2: remove make audit; make sec is the single scanner entry point Removes make audit; make sec is the single security-scan entry point. - make audit only ran govulncheck, and make sec already runs it (govulncheck + semgrep, merged into sec.sarif). Keeping both was a redundant second way to run the same scanner, so make audit is gone. Run make sec instead. CI already used make sec, so the security gate is unchanged.