refactor

core/racing/domain/entities/result/LapTime.ts

@@ -0,0 +1,20 @@
+import { RacingDomainValidationError } from '../../errors/RacingDomainError';
+
+export class LapTime {
+  private constructor(private readonly value: number) {}
+
+  static create(value: number): LapTime {
+    if (typeof value !== 'number' || value < 0 || isNaN(value)) {
+      throw new RacingDomainValidationError('Lap time must be a non-negative number');
+    }
+    return new LapTime(value);
+  }
+
+  toNumber(): number {
+    return this.value;
+  }
+
+  equals(other: LapTime): boolean {
+    return this.value === other.value;
+  }
+}