### Fixed - 🔒 **Security vulnerability** - Fixed XSS vulnerability in note badges by properly escaping grade values - 📅 **Date validation** - Enhanced date formatting with robust validation to prevent crashes on malformed dates - 🏢 **Provider parsing** - Improved provider nationality parsing to handle more delimiter formats (commas, ampersands, slashes) ### Changed - 📱 **Mobile display** - Reordered filter columns: now shows Hosting Provider before Location for better mobile UX - 📱 **Mobile table** - Optimized table for small screens showing only: SaaS name, Provider nationality, and Source - 🎨 **Filter layout** - Unified filter field widths in mobile view for consistent appearance ### Technical - Enhanced error handling and input validation across all user-facing functions - Improved code documentation with comprehensive English comments - Added JSDoc documentation for global state variables - Strengthened security practices with proper HTML escaping throughout the application