feat: 修正庫存與撥補單邏輯並整合文件

1. 修復倉庫統計數據加總與樣式。
2. 修正可用庫存計算邏輯（排除不可銷售倉庫）。
3. 撥補單商品列表加入批號與效期顯示。
4. 修正撥補單儲存邏輯以支援精確批號轉移。
5. 整合 FEATURES.md 至 README.md。

resources/js/Components/Warehouse/TransferOrderDialog.tsx

@@ -31,7 +31,7 @@ interface TransferOrderDialogProps {
   onOpenChange: (open: boolean) => void;
   order: TransferOrder | null;
   warehouses: Warehouse[];
-  // inventories: WarehouseInventory[]; // Removed as we fetch from API
+  // inventories: WarehouseInventory[]; // 因從 API 獲取而移除
   onSave: (order: Omit<TransferOrder, "id" | "createdAt" | "orderNumber">) => void;
 }
 
@@ -41,6 +41,7 @@ interface AvailableProduct {
   batchNumber: string;
   availableQty: number;
   unit: string;
+  expiryDate: string | null;
 }
 
 export default function TransferOrderDialog({
@@ -99,7 +100,15 @@ export default function TransferOrderDialog({
     if (formData.sourceWarehouseId) {
       axios.get(route('api.warehouses.inventories', formData.sourceWarehouseId))
         .then(response => {
-          setAvailableProducts(response.data);
+          const mappedData = response.data.map((item: any) => ({
+            productId: item.product_id,
+            productName: item.product_name,
+            batchNumber: item.batch_number,
+            availableQty: item.quantity,
+            unit: item.unit_name,
+            expiryDate: item.expiry_date
+          }));
+          setAvailableProducts(mappedData);
         })
         .catch(error => {
           console.error("Failed to fetch inventories:", error);
@@ -240,7 +249,7 @@ export default function TransferOrderDialog({
               onValueChange={handleProductChange}
               disabled={!formData.sourceWarehouseId || !!order}
               options={availableProducts.map((product) => ({
-                label: `${product.productName} (庫存: ${product.availableQty} ${product.unit})`,
+                label: `${product.productName} | 批號: ${product.batchNumber || '-'} | 效期: ${product.expiryDate || '-'} (庫存: ${product.availableQty} ${product.unit})`,
                 value: `${product.productId}|||${product.batchNumber}`,
               }))}
               placeholder="選擇商品與批號"