- 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
- Add AJAX handler to ask.md (same as plan.md) - Improve load_env_file() to strip inline comments and spaces - Create ERRORS_COLLECTION.md documenting all 7 error categories - Fixes white page/JSON display issue in ask form
Kirik