Lumiere v2.38
- umer.php unchanged.
- Main index charts now use responsive interactive Chart.js like umer.php.
- Legends toggle chart datasets; no horizontal chart scrolling.
- Doughnut segment click filters the dashboard to that channel.
- Campaign Leads ↓ filters to that campaign/channel and opens Leads.
- Source Leads ↓ filters to that exact source/channel and opens Leads.
- Ad Set filtering is now actually applied to the main dataset.
- Existing Campaign -> Ad Set -> Ad expansion, All Time, filters, pagination and CSV remain.
