- S5: Appointment calendar view (7-day grid, week nav, today highlight) - R2: Kitchen Display demo with station tabs (Bếp/Bar/Nướng) - K4: Room type badges (VIP/Standard/Party) from zone field - B2: Treatments tabbed view (Liệu trình/Hồ sơ y tế/Ảnh Before-After) - G10: Receipt settings panel (header/footer, paper size, logo, QR code) - Added _calendarWeekOffset, _kdsStation, _treatmentTab state vars