refactor: remove name field from CreateShift and update ShiftEntity to allow nullable name

eatery-service/src/main/java/com/drinkool/dtos/CreateShift.java

@@ -7,9 +7,6 @@ import org.eclipse.microprofile.graphql.NonNull;
 @NoArgsConstructor
 public class CreateShift {
 
-	@NonNull
-	public String name;
-
 	@NonNull
 	public LocalTime startTime;
 

eatery-service/src/main/java/com/drinkool/entities/ShiftEntity.java

@@ -18,7 +18,7 @@ public class ShiftEntity extends BaseEntity {
 	@JoinColumn(name = "eatery_id")
 	public EateryEntity eatery;
 
-	@Column(nullable = false)
+	@Column(nullable = true)
 	public String name;
 
 	@Column(nullable = false)

eatery-service/src/main/java/com/drinkool/services/ShiftService.java

@@ -116,7 +116,6 @@ public class ShiftService {
 
 		ShiftEntity shift = new ShiftEntity();
 		shift.eatery = eatery;
-		shift.name = input.name;
 		shift.startTime = input.startTime;
 		shift.endTime = input.endTime;
 		shift.maxStaff = input.maxStaff;
@@ -145,7 +144,6 @@ public class ShiftService {
 			!shift.eatery.ownerId.toString().equals(ownerId)
 		) throw new GraphQLException("InvalidShiftId");
 
-		shift.name = input.name;
 		shift.startTime = input.startTime;
 		shift.endTime = input.endTime;
 		shift.maxStaff = input.maxStaff;