refactor

core/racing/domain/entities/Year.ts

@@ -0,0 +1,20 @@
+import { RacingDomainValidationError } from '../errors/RacingDomainError';
+
+export class Year {
+  private constructor(private readonly value: number) {}
+
+  static create(value: number): Year {
+    if (value < 1900 || value > new Date().getFullYear() + 1) {
+      throw new RacingDomainValidationError('Year must be between 1900 and next year');
+    }
+    return new Year(value);
+  }
+
+  toNumber(): number {
+    return this.value;
+  }
+
+  equals(other: Year): boolean {
+    return this.value === other.value;
+  }
+}