phase a audit

src/Ingest/GuardrailValidator.php

@@ -18,6 +18,7 @@ final readonly class GuardrailValidator
      */
     public function validateOrThrow(): void
     {
+        $this->metaManager->ensureExists();
         $this->metaManager->validateAgainstCurrent();
     }
 }

src/Ingest/VectorRebuildService.php

@@ -26,6 +26,9 @@ final readonly class VectorRebuildService
      */
     public function rebuild(?string $logPath = null): void
     {
+        // ✅ Stelle sicher, dass index_meta.json existiert
+        $this->metaManager->ensureExists();
+
         // 1️⃣ Vector Index neu bauen
         $this->vectorBuilder->rebuildFromNdjson($logPath);