fix(Inventory): 修復庫存列表批號欄位與新增庫存頁面儲位欄位遺失問題，並還原批號輸入佈局

app/Modules/Inventory/Imports/InventoryImport.php

@@ -55,18 +55,20 @@ class InventoryImport implements ToModel, WithHeadingRow, WithValidation, WithMa
 
         $quantity = (float) $row['數量'];
         $unitCost = isset($row['入庫單價']) ? (float) $row['入庫單價'] : ($product->cost_price ?? 0);
+        $location = $row['儲位/貨道'] ?? null;
         
         // 批號邏輯：若 Excel 留空則使用 NO-BATCH
         $batchNumber = !empty($row['批號']) ? $row['批號'] : 'NO-BATCH';
         $originCountry = $row['產地'] ?? 'TW';
         $expiryDate = !empty($row['效期']) ? $row['效期'] : null;
 
-        return DB::transaction(function () use ($product, $quantity, $unitCost, $batchNumber, $originCountry, $expiryDate) {
+        return DB::transaction(function () use ($product, $quantity, $unitCost, $location, $batchNumber, $originCountry, $expiryDate) {
             // 使用與 InventoryController 相同的 firstOrNew 邏輯
             $inventory = $this->warehouse->inventories()->withTrashed()->firstOrNew(
                 [
                     'product_id' => $product->id,
-                    'batch_number' => $batchNumber
+                    'batch_number' => $batchNumber,
+                    'location' => $location, // 加入儲位/貨道作為區分關鍵字
                 ],
                 [
                     'quantity' => 0,
@@ -114,7 +116,10 @@ class InventoryImport implements ToModel, WithHeadingRow, WithValidation, WithMa
             '商品條碼' => ['nullable', 'string'],
             '商品代號' => ['nullable', 'string'],
             '數量' => ['required', 'numeric', 'min:0.01'],
+            '單位' => ['required', 'string'],
             '入庫單價' => ['nullable', 'numeric', 'min:0'],
+            '儲位/貨道' => ['nullable', 'string', 'max:50'],
+            '批號' => ['nullable', 'string'],
             '效期' => ['nullable', 'date'],
             '產地' => ['nullable', 'string', 'max:2'],
         ];