Added fullWidth support to UiButton and updated usages to ensure buttons span container width. Improved ViewOrderCard with expanded worker details, avatar stack, formatted date/time, and an order edit bottom sheet. Introduced new icons and typography style in the design system.
Relocated all app directories (client, design_system_viewer, staff) and their contents under the new 'apps/mobile' path. This change improves project organization and prepares for future platform-specific structuring.
