fix: link targets never reveal library entries by type (ruling Q14)

WpLinkTargets answers the library, internal "_" types and every type
without a Divi post_link_url option like a missing ID; replace-text strips
library IDs only from global subtrees.

Co-Authored-By: Claude Opus 5.5 (1M context) <noreply@anthropic.com>

tests/Unit/Integrations/Divi/Pages/WpValueSanitizerTest.php

@@ -5,6 +5,7 @@ declare(strict_types=1);
 namespace LIT\MCP\Tests\Unit\Integrations\Divi\Pages;
 
 use Brain\Monkey\Functions;
+use LIT\MCP\Integrations\Divi\Pages\WpLinkTargets;
 use LIT\MCP\Integrations\Divi\Pages\WpValueSanitizer;
 use LIT\MCP\Tests\Unit\TestCase;
 use WP_Post;
@@ -72,7 +73,7 @@ final class WpValueSanitizerTest extends TestCase
             default => null,
         });
         Functions\when('current_user_can')->alias(static fn (string $cap, int $id): bool => $id !== 16);
-        $sanitizer = new WpValueSanitizer();
+        $sanitizer = new WpValueSanitizer(new WpLinkTargets(static fn (string $type): bool => $type !== 'wp_block'));
 
         self::assertSame('page', $sanitizer->linkTargetType(12));
         self::assertSame('post', $sanitizer->linkTargetType(20));