Regenerate and update ephemeral macOS Flutter config and env script with local paths and build settings (FLUTTER_ROOT, FLUTTER_APPLICATION_PATH, FLUTTER_TARGET, FLUTTER_BUILD_NAME, DART_DEFINES, PACKAGE_CONFIG). Update generated localization timestamp. Add missing import for shifts_bloc in shift_details_page.dart to enable bloc usage in the page.
- Implemented ShiftAssignmentCard widget for displaying shift assignments with client details, pay calculation, and confirmation actions.
- Created StaffShiftsModule to manage dependencies, routes, and use cases related to staff shifts.
- Added necessary dependencies in pubspec.yaml and generated pubspec.lock.
