Guided security fix workflow. Use when the user wants to fix security audit
findings, remediate vulnerabilities, apply security patches, or work through
a security audit report. Triggers on "/security-fix", "fix security",
"remediate", "apply audit fixes", "修安全漏洞", "修复审计问题", "安全修复",
or when the user mentions a SECURITY_AUDIT.md file and wants to fix the
findings.
