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/Pages/Production/Create.tsx

@@ -53,18 +53,18 @@ interface InventoryOption {
 }
 
 interface BomItem {
-    // Backend required
-    inventory_id: string; // The selected inventory record ID (Specific Batch)
-    quantity_used: string; // The converted final quantity (Base Unit)
-    unit_id: string; // The unit ID (Base Unit ID usually)
+    // 後端必填
+    inventory_id: string; // 所選庫存記錄 ID（特定批號）
+    quantity_used: string; // 轉換後的最終數量（基本單位）
+    unit_id: string; // 單位 ID（通常為基本單位 ID）
 
-    // UI State
-    ui_warehouse_id: string; // Source Warehouse
-    ui_product_id: string; // Filter for batch list
-    ui_input_quantity: string; // User typed quantity
-    ui_selected_unit: 'base' | 'large'; // User selected unit
+    // UI 狀態
+    ui_warehouse_id: string; // 來源倉庫
+    ui_product_id: string; // 批號列表篩選
+    ui_input_quantity: string; // 使用者輸入數量
+    ui_selected_unit: 'base' | 'large'; // 使用者選擇單位
 
-    // UI Helpers / Cache
+    // UI 輔助 / 快取
     ui_product_name?: string;
     ui_batch_number?: string;
     ui_available_qty?: number;
@@ -83,8 +83,8 @@ interface Props {
 }
 
 export default function ProductionCreate({ products, warehouses }: Props) {
-    const [selectedWarehouse, setSelectedWarehouse] = useState<string>(""); // Output Warehouse
-    // Cache map: warehouse_id -> inventories
+    const [selectedWarehouse, setSelectedWarehouse] = useState<string>(""); // 產出倉庫
+    // 快取對照表：warehouse_id -> inventories
     const [inventoryMap, setInventoryMap] = useState<Record<string, InventoryOption[]>>({});
     const [loadingWarehouses, setLoadingWareStates] = useState<Record<string, boolean>>({});
 
@@ -102,7 +102,7 @@ export default function ProductionCreate({ products, warehouses }: Props) {
         items: [] as { inventory_id: number; quantity_used: number; unit_id: number | null }[],
     });
 
-    // Helper to fetch warehouse data
+    // 獲取倉庫資料的輔助函式
     const fetchWarehouseInventory = async (warehouseId: string) => {
         if (!warehouseId || inventoryMap[warehouseId] || loadingWarehouses[warehouseId]) return;