Fix virtual shortage lot activation and warning

modules/erp/lager/api/lot.php

@@ -126,7 +126,12 @@ try {
             $lotNumber === ''
         );
         sync_open_lot_activation_selection($pdo, $productId);
-        $preparedLot['next_active'] = is_open_lot_selected_for_activation($pdo, $lotId);
+        if (promote_open_lot_when_virtual_shortage_is_current($pdo, $productId, $lotId)) {
+            $preparedLot['status'] = 'current';
+            $preparedLot['next_active'] = false;
+        } else {
+            $preparedLot['next_active'] = is_open_lot_selected_for_activation($pdo, $lotId);
+        }
         refresh_lager_stock_lot_forecast_for_product($pdo, $productId);
         $forecast = get_lager_product_forecast($pdo, $productId);
         json_response(200, ['ok' => true, 'productId' => $productId, 'lot' => $preparedLot, 'balance' => get_stock_lot_balance($pdo, $lotId), 'availableQty' => get_lager_product_available_qty($pdo, $productId), 'forecast' => $forecast]);
@@ -136,7 +141,8 @@ try {
         $productId = (int) ($data['productId'] ?? 0);
         $lotId = (int) ($data['lotId'] ?? 0);
         select_open_lot_for_activation($pdo, $productId, $lotId);
-        json_response(200, ['ok' => true, 'productId' => $productId, 'selectedLotId' => $lotId]);
+        refresh_lager_stock_lot_forecast_for_product($pdo, $productId);
+        json_response(200, ['ok' => true, 'productId' => $productId, 'selectedLotId' => $lotId, 'forecast' => get_lager_product_forecast($pdo, $productId)]);
     }
 
     json_response(422, ['ok' => false, 'error' => 'Unsupported action']);
@@ -145,5 +151,19 @@ try {
 } catch (InvalidArgumentException $error) {
     json_response(422, ['ok' => false, 'error' => $error->getMessage()]);
 } catch (Throwable $error) {
+    if (isset($pdo) && $pdo->inTransaction()) {
+        $pdo->rollBack();
+    }
+    try {
+        system_write_audit_log($pdo, 'lager_api', 'lager-charge.php', 'request_failed', $currentUser['username'] ?? $currentUser['email'] ?? 'unknown', [], [], [
+            'action' => $action ?? '',
+            'product_id' => $data['productId'] ?? null,
+            'lot_id' => $data['lotId'] ?? null,
+            'exception_class' => get_class($error),
+            'exception_message' => $error->getMessage(),
+        ]);
+    } catch (Throwable) {
+        error_log('lager-charge API failure audit logging failed');
+    }
     json_response(500, ['ok' => false, 'error' => 'Interner Serverfehler']);
 }