feat(inventory): 販賣機視覺優化、修復匯入日期缺失與倉庫刪除權限錯誤

app/Modules/Inventory/Controllers/InventoryController.php

@@ -53,12 +53,18 @@ class InventoryController extends Controller
             ->pluck('safety_stock', 'product_id')
             ->mapWithKeys(fn($val, $key) => [(string)$key => (float)$val]);
 
-        // 3. 準備 inventories (批號分組)
         $items = $warehouse->inventories()
             ->with(['product.baseUnit', 'lastIncomingTransaction', 'lastOutgoingTransaction'])
             ->get();
 
-        $inventories = $items->groupBy('product_id')->map(function ($batchItems) use ($safetyStockMap) {
+        // 判斷是否為販賣機並調整分組
+        $isVending = $warehouse->type === 'vending';
+        
+        $inventories = $items->groupBy(function ($item) use ($isVending) {
+            return $isVending 
+                ? $item->product_id . '-' . ($item->location ?? 'NO-SLOT') 
+                : $item->product_id;
+        })->map(function ($batchItems) use ($safetyStockMap, $isVending) {
             $firstItem = $batchItems->first();
             $product = $firstItem->product;
             $totalQuantity = $batchItems->sum('quantity');