feat(staff): Restrict staff permissions and add schedule view

- Backend: Restrict staff from accessing resources, customers, services, and tasks APIs
- Frontend: Hide management sidebar links from staff members
- Add StaffSchedule page with vertical timeline view of appointments
- Add StaffHelp page with staff-specific documentation
- Return linked_resource_id and can_edit_schedule in user profile for staff

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

mobile/field-app/babel.config.js

@@ -2,5 +2,6 @@ module.exports = function (api) {
   api.cache(true);
   return {
     presets: ['babel-preset-expo'],
+    plugins: ['react-native-reanimated/plugin'],
   };
 };