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>

src/Integrations/Divi/Pages/WpValueSanitizer.php

@@ -4,6 +4,7 @@ declare(strict_types=1);
 
 namespace LIT\MCP\Integrations\Divi\Pages;
 
+use LIT\MCP\Integrations\Divi\Compose\LinkTargets;
 use LIT\MCP\Integrations\Divi\Compose\ValueSanitizer;
 
 defined('ABSPATH') || exit;
@@ -19,6 +20,11 @@ defined('ABSPATH') || exit;
  */
 final class WpValueSanitizer implements ValueSanitizer
 {
+    /** @param LinkTargets $links The {{link:}} targets post_link_url_* follow too (ruling P10). */
+    public function __construct(private LinkTargets $links = new WpLinkTargets())
+    {
+    }
+
     public function text(string $value): string
     {
         return sanitize_text_field($value);
@@ -51,6 +57,6 @@ final class WpValueSanitizer implements ValueSanitizer
 
     public function linkTargetType(int $id): ?string
     {
-        return (new WpLinkTargets())->postTypeOf($id);
+        return $this->links->postTypeOf($id);
     }
 }