POST /api/sessions - Creates new user sessionsPOST /api/clicks - Records click/tap eventsGET /api/sessions - Retrieves session data for playbackGET /api/clicks - Fetches click data for heatmapsGET /api/stats - Returns analytics and statistics<script src="path/to/heatmap.js"></script> before closing </body> tag?admin_heatmap=true to any tracked page URL?admin_heatmap=true for quick access