Refactored all inline event handlers (onclick, onchange, onsubmit) to use
addEventListener with data-action attributes and event delegation pattern.
Changes:
- views/*.php: Replaced inline handlers with data-action attributes
- views/admin/*.php: Same refactoring for all admin views
- assets/js/dashboard.js: Added event delegation for bulk/quick action modals
- assets/js/ticket.js: Added event delegation for dynamic elements
- assets/js/markdown.js: Refactored toolbar button handlers
- assets/js/keyboard-shortcuts.js: Refactored modal close button
- SecurityHeadersMiddleware.php: Enabled strict CSP with nonces
The CSP now uses script-src 'self' 'nonce-{nonce}' instead of 'unsafe-inline',
significantly improving XSS protection.
Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>
Jared Vititoe
c3f7593f3c