Kirik f14437c45d Add Security Headers section to deployment guide ...

- Added section 3.7 with all 6 HTTP security headers
- Includes HSTS, CSP, X-Frame-Options, X-Content-Type-Options, Referrer-Policy, Permissions-Policy
- Testing instructions and online validation tools
- Links to detailed SECURITY_HEADERS.md documentation
- Fixed .gitignore to properly allow INFO/Deployment/*.md files

2025-10-27 16:50:55 +01:00

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Deployment

Add Security Headers section to deployment guide

2025-10-27 16:50:55 +01:00