Update to Programming Hub

{
  "description": "Review and implement secure authentication, authorization, input handling, secrets, uploads, and data boundaries.",
  "included_files": [],
  "name": "security-engineering",
  "skill_md_contents": "---\nname: security-engineering\ndescription: Review and implement secure authentication, authorization, input handling, secrets, uploads, and data boundaries.\n---\n\n# Security Engineering\n\nCheck authentication, authorization, tenant isolation, input validation, injection, XSS, CSRF, SSRF, file uploads, path traversal, secrets, rate limits, logging, and sensitive-data exposure. Recommend defense in depth and avoid weakening controls for convenience.\n"
}