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+target
+.idea
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+# UML Class Diagram
+
+```mermaid
+classDiagram
+    class App {
+        +main(String[] args)
+    }
+
+    class ConsoleUi {
+        -WorkshopService service
+        -Scanner scanner
+        +ConsoleUi(WorkshopService service)
+        +start()
+        -printMenu()
+        -addPerson()
+        -listPersons()
+        -addVehicle()
+        -listVehiclesOfPerson()
+        -createWorkOrder()
+        -listWorkOrders()
+        -importPersons()
+        -exportPersons()
+    }
+
+    class WorkshopService {
+        -PersonDao personDao
+        -VehicleDao vehicleDao
+        -ServiceItemDao serviceItemDao
+        -WorkOrderDao workOrderDao
+        +WorkshopService()
+        +createPerson(String name, String phone) Person
+        +listPersons() List~Person~
+        +createVehicle(int personId, String brand, String model, String plate) Vehicle
+        +listVehicles(int personId) List~Vehicle~
+        +listServiceItems() List~ServiceItem~
+        +createWorkOrder(int vehicleId, String note, Map~Integer, Integer~ items) int
+        +listWorkOrders() List~WorkOrderDetails~
+        +findPerson(int id) Person
+        +findVehicle(int id) Vehicle
+    }
+
+    class Database {
+        +getConnection() Connection$
+    }
+
+    class Person {
+        -int id
+        -String name
+        -String phone
+        +Person(int id, String name, String phone)
+        +getId() int
+        +getName() String
+        +getPhone() String
+        +toString() String
+    }
+
+    class Vehicle {
+        -int id
+        -int personId
+        -String brand
+        -String model
+        -String plate
+        +Vehicle(int id, int personId, String brand, String model, String plate)
+        +getId() int
+        +getPersonId() int
+        +getBrand() String
+        +getModel() String
+        +getPlate() String
+        +toString() String
+    }
+
+    class ServiceItem {
+        -int id
+        -String title
+        -BigDecimal price
+        +ServiceItem(int id, String title, BigDecimal price)
+        +getId() int
+        +getTitle() String
+        +getPrice() BigDecimal
+        +toString() String
+    }
+
+    class WorkOrder {
+        -int id
+        -int vehicleId
+        -String note
+        -LocalDateTime createdAt
+        +WorkOrder(int id, int vehicleId, String note, LocalDateTime createdAt)
+        +getId() int
+        +getVehicleId() int
+        +getNote() String
+        +getCreatedAt() LocalDateTime
+    }
+
+    class WorkOrderItem {
+        -int id
+        -int workOrderId
+        -ServiceItem serviceItem
+        -int quantity
+        +WorkOrderItem(int id, int workOrderId, ServiceItem serviceItem, int quantity)
+        +getId() int
+        +getWorkOrderId() int
+        +getServiceItem() ServiceItem
+        +getQuantity() int
+        +getTotalPrice() BigDecimal
+    }
+
+    class WorkOrderDetails {
+        -int orderId
+        -String personName
+        -String vehicleText
+        -LocalDateTime createdAt
+        -String note
+        -List~WorkOrderItem~ items
+        -BigDecimal total
+        +WorkOrderDetails(int orderId, String personName, String vehicleText, LocalDateTime createdAt, String note, List~WorkOrderItem~ items, BigDecimal total)
+        +getOrderId() int
+        +getPersonName() String
+        +getVehicleText() String
+        +getCreatedAt() LocalDateTime
+        +getNote() String
+        +getItems() List~WorkOrderItem~
+        +getTotal() BigDecimal
+    }
+
+    class PersonDao {
+        +create(String name, String phone) Person
+        +findAll() List~Person~
+        +findById(int id) Person
+    }
+
+    class VehicleDao {
+        +create(int personId, String brand, String model, String plate) Vehicle
+        +findByPerson(int personId) List~Vehicle~
+        +findById(int id) Vehicle
+    }
+
+    class ServiceItemDao {
+        +findAll() List~ServiceItem~
+        +seedDefaultItems()
+    }
+
+    class WorkOrderDao {
+        +createWorkOrder(int vehicleId, String note, Map~Integer, Integer~ items) int
+        +fetchAllDetails() List~WorkOrderDetails~
+    }
+
+    class SchemaCreator {
+        +ensureSchema()
+    }
+
+    namespace importers {
+        class IImporter~T~ {
+            <<interface>>
+            +importData(String path) List~T~
+        }
+
+        class CsvPersonImporter {
+            +importData(String path) List~Person~
+        }
+    }
+
+    namespace exporters {
+        class IExporter~T~ {
+            <<interface>>
+            +exportData(List~T~ data, String path)
+        }
+
+        class CsvPersonExporter {
+            +exportData(List~Person~ data, String path)
+        }
+    }
+
+    namespace loggers {
+        class ILogger {
+            <<interface>>
+            +Log()
+        }
+    }
+
+    App ..> ConsoleUi : creates
+    App ..> WorkshopService : creates
+    ConsoleUi --> WorkshopService : uses
+    ConsoleUi ..> CsvPersonImporter : creates
+    ConsoleUi ..> CsvPersonExporter : creates
+
+    WorkshopService --> PersonDao : uses
+    WorkshopService --> VehicleDao : uses
+    WorkshopService --> ServiceItemDao : uses
+    WorkshopService --> WorkOrderDao : uses
+    WorkshopService ..> SchemaCreator : uses
+
+    PersonDao ..> Person : uses
+    VehicleDao ..> Vehicle : uses
+    ServiceItemDao ..> ServiceItem : uses
+    WorkOrderDao ..> WorkOrder : uses
+    WorkOrderDao ..> WorkOrderDetails : creates
+    WorkOrderDao ..> WorkOrderItem : creates
+
+    WorkOrderDetails *-- WorkOrderItem : contains
+    WorkOrderItem --> ServiceItem : has
+
+    CsvPersonImporter ..|> IImporter : implements
+    CsvPersonExporter ..|> IExporter : implements
+    
+    PersonDao ..> Database : uses
+    VehicleDao ..> Database : uses
+    ServiceItemDao ..> Database : uses
+    WorkOrderDao ..> Database : uses
+```