refactor

core/racing/domain/entities/CarClass.ts

@@ -0,0 +1,17 @@
+export type CarClassType = 'formula' | 'gt' | 'prototype' | 'touring' | 'sports' | 'oval' | 'dirt';
+
+export class CarClass {
+  private constructor(private readonly value: CarClassType) {}
+
+  static create(value: CarClassType): CarClass {
+    return new CarClass(value);
+  }
+
+  toString(): CarClassType {
+    return this.value;
+  }
+
+  equals(other: CarClass): boolean {
+    return this.value === other.value;
+  }
+}