[FEAT] 實作跨倉庫及時庫存批號搜尋與 Debounce 搜尋體驗

app/Modules/Inventory/Services/InventoryService.php

@@ -303,12 +303,14 @@ class InventoryService implements InventoryServiceInterface
             $query->where('products.category_id', $filters['category_id']);
         }
 
-        // 篩選：關鍵字（商品代碼或名稱）
+        // 篩選：關鍵字（商品代碼或名稱或批號）
         if (!empty($filters['search'])) {
             $search = $filters['search'];
             $query->where(function ($q) use ($search) {
                 $q->where('products.code', 'like', "%{$search}%")
-                  ->orWhere('products.name', 'like', "%{$search}%");
+                  ->orWhere('products.name', 'like', "%{$search}%")
+                  ->orWhere('inventories.batch_number', 'like', "%{$search}%")
+                  ->orWhere(\Illuminate\Support\Facades\DB::raw("CONCAT('BATCH-', inventories.id)"), 'like', "%{$search}%");
             });
         }