- Added missing template_include filter to HVAC_Custom_Event_Edit class
- Added loadTemplate method to handle template loading for rewrite rules
- Added support for hierarchical URL /trainer/event/edit in load_custom_templates
- Created WordPress page at /trainer/event/edit/ for custom form
- Assigned page-edit-event-custom.php template to the page
This ensures the custom event edit form loads correctly without JavaScript dependencies
