Added more functionality

README.md

@@ -12,6 +12,8 @@ Open the web dashboard at [http://localhost:3000](http://localhost:3000).
 
 The dashboard's **Vehicles** view provides a dedicated vehicle register containing make, model, model year, engine, transmission, fuel type, color, VIN, license plate, mileage, owner, and service-record count. The **Service records** form stores these vehicle details and can autofill them, along with the customer, when an existing VIN or license plate is entered. Customer contact information can also be autofilled by customer email or by a unique customer name. Names are not unique, so duplicate names are allowed; when a name matches multiple customers, the form asks for an email instead of choosing one incorrectly. It supports adding, listing, and editing service records with service date, VIN, license plate number, car mileage, customer, technician, complaint, and status. Adding a record creates or updates the linked customer and vehicle, technician, and service order in one transaction.
 
+Service records can also include optional used parts and labor lines. Parts support a part number, quantity, and unit price. Labor supports used time in hours and an hourly price. Line totals and the service-record total are calculated automatically and stored with the service order.
+
 The **Accounts** view supports reading, adding, editing, and deleting users with `read`, `add`, and `delete` rights. A default `admin` account is created automatically, and the last administrator cannot be deleted. These permissions are currently stored as staff access profiles; login/session enforcement can be added when authentication is required.
 
 Check that the database is ready: