refactor

core/racing/domain/entities/ProtestComment.ts

@@ -0,0 +1,21 @@
+import { RacingDomainValidationError } from '../errors/RacingDomainError';
+
+export class ProtestComment {
+  private constructor(private readonly value: string) {}
+
+  static create(value: string): ProtestComment {
+    const trimmed = value.trim();
+    if (!trimmed) {
+      throw new RacingDomainValidationError('Protest comment cannot be empty');
+    }
+    return new ProtestComment(trimmed);
+  }
+
+  toString(): string {
+    return this.value;
+  }
+
+  equals(other: ProtestComment): boolean {
+    return this.value === other.value;
+  }
+}