fix: detach meldet nicht „alles erledigt“, solange nicht lesbare Fundstellen Verweise enthalten können; PageRewriter::apply liefert hidden_count; Tests für Sperre durch nicht lesbare Seiten und post_ids über der Obergrenze

Co-Authored-By: Claude Sonnet 5.5 <noreply@anthropic.com>

src/Integrations/Divi/Design/PageRewriter.php

@@ -123,8 +123,9 @@ class PageRewriter
      * @param Closure(): NodeRewrite $rewrite A fresh strategy per post.
      * @param list<int>|null         $postIds Only these posts; null = every usage.
      * @return array{saved: list<array{post_id: int, revision_id: ?int, nodes: int}>, remaining: int,
-     *     warnings: list<string>, skipped: list<array{post_id: int, reason: string}>}|WP_Error
-     *     unsupported (above HARD_CAP), forbidden (blocked), partial_write (data.saved)
+     *     warnings: list<string>, skipped: list<array{post_id: int, reason: string}>, hidden_count: int}|WP_Error
+     *     hidden_count = usages this account may not read (never rewritten, as in preview(); 0 with post_ids);
+     *     errors: unsupported (above HARD_CAP), forbidden (blocked), partial_write (data.saved)
      * @throws WriteFailed When saving the first post fails.
      * @throws DiviLocked  When Divi is not released – before the first post is written.
      */
@@ -136,7 +137,8 @@ class PageRewriter
         string $summary
     ): array|WP_Error {
         $ids = self::ids($postIds);
-        $refusal = $this->refusal($this->usages->reportFor($query), $ids);
+        $report = $this->usages->reportFor($query);
+        $refusal = $this->refusal($report, $ids);
         if ($refusal !== null) {
             return $refusal;
         }
@@ -158,7 +160,13 @@ class PageRewriter
             }
         }
 
-        return ['saved' => $saved, 'remaining' => $remaining, 'warnings' => $warnings, 'skipped' => $skipped];
+        return [
+            'saved' => $saved,
+            'remaining' => $remaining,
+            'warnings' => $warnings,
+            'skipped' => $skipped,
+            'hidden_count' => $ids === null ? $report->hidden : 0,
+        ];
     }
 
     /**