Managers and admins should be able to fully manage published shifts from the mobile app, especially for last-minute roster changes. Currently, managers can view team schedules on mobile, but published shift management is limited compared to desktop. This creates issues for frontline managers who are not always at a workstation, especially in healthcare, hospitality, retail, F&B, aged care, security, and other shift-based industries. The mobile app should allow users with the correct permissions to: * Edit published shift start and end times * Edit or add breaks * Add or update shift details * Add notes or reasons for shift changes * Delete published shifts that are no longer needed * Move a shift to another employee * Convert an assigned shift into a vacant shift * Assign a vacant shift to a staff member * Publish vacant shifts for shift claiming * Review updates before publishing * Notify affected staff when changes are published * Require staff acknowledgement for updated shifts * Respect existing shift clash or duplicate shift prevention rules This is important because managers often need to make changes while on the floor, not from a desktop. If an employee’s shift changes and the old shift cannot be deleted or updated from mobile, the outdated shift may still appear in the schedule. This can cause duplicate shifts, shift clashes, staff confusion, and missed updates. This feature would help keep the schedule as the source of truth, reduce manual communication through WhatsApp/SMS/calls, and ensure staff receive accurate schedule notifications in real time. This is different from timesheet corrections because the goal is to update the roster before the shift happens, not fix attendance after the shift has already occurred.