5db53f63a4
- Add MongoDB models for Payment and PaymentSplit with proper splitting logic - Implement API routes for CRUD operations and balance calculations - Create dashboard with balance overview and recent activity - Add payment creation form with file upload (using $IMAGE_DIR) - Implement shallow routing with modal side panel for payment details - Support multiple split methods: equal, full payment, custom proportions - Add responsive design for desktop and mobile - Integrate with existing Authentik authentication