Create Security Documentation

[Carrington-dev]

Description

Write comprehensive security documentation for handling sensitive configuration.

Tasks

• Document secrets management best practices
• Explain when to use encryption
• Document cloud provider IAM setup
• Add .gitignore recommendations
• Explain environment variable security
• Document audit logging
• Add secrets rotation guidance
• Create security checklist
• Add SECURITY.md for vulnerability reporting
• Document OWASP recommendations

Acceptance Criteria

• Security guidance comprehensive
• Best practices clearly explained
• Examples provided
• Vulnerability reporting process clear