優化門市叫貨流程：實作庫存預扣機制、鎖定自動產生的調撥單明細、修復自動販賣機貨道數量連動 Bug 及狀態同步問題

app/Modules/Inventory/Controllers/TransferOrderController.php

@@ -215,6 +215,9 @@ class TransferOrderController extends Controller
         // 2. 先更新資料 (如果請求中包含 items，則先執行儲存)
         $itemsChanged = false;
         if ($request->has('items')) {
+            if ($order->storeRequisition()->exists()) {
+                return redirect()->back()->with('error', '由叫貨單自動產生的調撥單無法修改明細');
+            }
             $validated = $request->validate([
                 'items' => 'array',
                 'items.*.product_id' => 'required|exists:products,id',
@@ -263,6 +266,17 @@ class TransferOrderController extends Controller
             return redirect()->back()->with('error', '只能刪除草稿狀態的單據');
         }
 
+        // 刪除前必須先釋放預留庫存
+        foreach ($order->items as $item) {
+            $inv = Inventory::where('warehouse_id', $order->from_warehouse_id)
+                ->where('product_id', $item->product_id)
+                ->where('batch_number', $item->batch_number)
+                ->first();
+            if ($inv) {
+                $inv->releaseReservedQuantity($item->quantity);
+            }
+        }
+
         $order->items()->delete();
         $order->delete();