fix(wpmc S5): wrap Redirect get_permalink + safe rest_url replacement

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

includes/class-redirect.php

@@ -58,7 +58,7 @@ final class Redirect
             if (!$orig_id) {
                 return;
             }
-            $orig_permalink = \get_permalink($orig_id);
+            $orig_permalink = Helpers::without_url_filters(static fn () => \get_permalink($orig_id));
             if (!is_string($orig_permalink) || $orig_permalink === '') {
                 return;
             }

includes/class-rest-url-filter.php

@@ -16,7 +16,13 @@ final class RestUrlFilter
         if ($host === '') {
             return $url;
         }
-        $replaced = preg_replace('#^https?://[^/]+#', 'https://' . $host, $url);
-        return is_string($replaced) ? $replaced : $url;
+        $parsed = parse_url($url);
+        if ($parsed === false || empty($parsed['scheme'])) {
+            return $url;
+        }
+        $path = $parsed['path'] ?? '';
+        $query = isset($parsed['query']) ? '?' . $parsed['query'] : '';
+        $fragment = isset($parsed['fragment']) ? '#' . $parsed['fragment'] : '';
+        return 'https://' . $host . $path . $query . $fragment;
     }
 }