Keep lot drawer open after creation

modules/erp/lager/service.php

@@ -490,6 +490,18 @@ function is_qualified_open_lot(PDO $pdo, int $lotId): bool
     return (bool) $stmt->fetchColumn();
 }
 
+function is_open_lot_selected_for_activation(PDO $pdo, int $lotId): bool
+{
+    $stmt = $pdo->prepare(
+        "SELECT next_active
+         FROM stock_lot
+         WHERE id = :lot_id
+           AND status = 'open'"
+    );
+    $stmt->execute([':lot_id' => $lotId]);
+    return (bool) $stmt->fetchColumn();
+}
+
 function sync_open_lot_activation_selection(PDO $pdo, int $productId): void
 {
     $lockStmt = $pdo->prepare(