fix(skill): rewrite isms-audit-expert with real content and no phantom references (#73) (#139)
- Rewrite SKILL.md with proper structure (288 lines)
- Add trigger phrases to frontmatter
- Add Table of Contents
- Remove ASCII art tree structures, use bullet lists
- Standardize terminology to "ISMS audit" as primary term
- Remove marketing language ("expert-level", "comprehensive", "proven")
- Add validation steps after workflows
- Create real reference files:
- iso27001-audit-methodology.md - Audit program, pre-audit, certification
- security-control-testing.md - ISO 27002 control verification procedures
- cloud-security-audit.md - Cloud provider and configuration assessment
- Create real Python script:
- isms_audit_scheduler.py - Risk-based audit planning tool
- Delete placeholder files (example.py, api_reference.md, example_asset.txt)
Co-authored-by: Claude Opus 4.5 <noreply@anthropic.com>