- Update OrderFilters interface to match complete API documentation
- Add all supported query parameters (user_id, invoice_id, transaction_id, discount_code, etc.)
- Optimize useOrderStats to prevent duplicate API calls by making it dependent on orders query
- Add payment status filter to orders list page
- Replace order number search with general search field supporting order numbers, transaction IDs, and discount codes
- Maintain backward compatibility with legacy filter names
- Add stale time to stats query for better caching