feat: add Shift Planning module with full CRUD, attendance, and reporting

- Add shifts, shift_staff, and shift_attendance migrations
- Add Shift, ShiftStaff, ShiftAttendance Eloquent models with auditing
- Add ShiftService with business logic (create, start, complete, assign staff, mark attendance, reports, timesheets)
- Add ShiftResource with list, create, edit, and attendance management pages
- Add staff and attendance relation managers
- Add standalone pages: ActiveShifts, StaffManagement, ShiftReports, Timesheets
- Add dashboard widgets: ShiftOverview stats, TodaysShifts table
- Add ShiftPolicy for role-based authorization
- Add 10 shift permissions and manager role to RolePermissionSeeder
- Update User model with shift relationships
- Fix audits table migration with required columns for owen-it/laravel-auditing
- Update DatabaseSeeder to create admin user and call RolePermissionSeeder
- Switch docker-compose to MariaDB 10.11 for Docker Desktop compatibility

docker-compose.yml

@@ -39,9 +39,9 @@ services:
   # Or:         docker-compose --profile sqlite up
   # ============================================
 
-  # MySQL Database
+  # MySQL-compatible Database (MariaDB)
   mysql:
-    image: mysql:8.0
+    image: mariadb:10.11
     container_name: laravel_mysql
     restart: unless-stopped
     ports:
@@ -53,7 +53,6 @@ services:
       MYSQL_ROOT_PASSWORD: ${DB_ROOT_PASSWORD:-rootsecret}
     volumes:
       - mysql_data:/var/lib/mysql
-      - ./docker/mysql/my.cnf:/etc/mysql/conf.d/my.cnf
     networks:
       - laravel_network
     profiles: