Orders page redesigned for clarity

The Orders page now shows exactly what it is filtering. Every active constraint — date range, archived-order exclusion — appears as a removable chip. Column headers (Created Date, Selected Date) are directly sortable with a click. Date filter presets include Today onward, Today, Last 30/90 days, Last 12 months, No date, and Custom. Exports are named after your current filters, and a confirmation step prevents accidental downloads.