feat: add url mapping value objects

src/Url/UrlMapping.php

@@ -0,0 +1,32 @@
+<?php
+
+namespace WPContentSync\Url;
+
+final class UrlMapping {
+	private string $source_url;
+	private string $destination_url;
+
+	public function __construct( string $source_url, string $destination_url ) {
+		$source_url      = $this->normalizeUrl( $source_url );
+		$destination_url = $this->normalizeUrl( $destination_url );
+
+		if ( '' === $source_url || '' === $destination_url ) {
+			throw new \InvalidArgumentException( 'Source and destination URLs are required.' );
+		}
+
+		$this->source_url      = $source_url;
+		$this->destination_url = $destination_url;
+	}
+
+	public function sourceUrl(): string {
+		return $this->source_url;
+	}
+
+	public function destinationUrl(): string {
+		return $this->destination_url;
+	}
+
+	private function normalizeUrl( string $url ): string {
+		return rtrim( trim( $url ), '/' );
+	}
+}