refactor

core/racing/domain/entities/MembershipRole.ts

@@ -0,0 +1,22 @@
+import { RacingDomainValidationError } from '../errors/RacingDomainError';
+
+export type MembershipRoleValue = 'owner' | 'admin' | 'steward' | 'member';
+
+export class MembershipRole {
+  private constructor(private readonly value: MembershipRoleValue) {}
+
+  static create(value: MembershipRoleValue): MembershipRole {
+    if (!value) {
+      throw new RacingDomainValidationError('Membership role is required');
+    }
+    return new MembershipRole(value);
+  }
+
+  toString(): MembershipRoleValue {
+    return this.value;
+  }
+
+  equals(other: MembershipRole): boolean {
+    return this.value === other.value;
+  }
+}