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/Layouts/AuthenticatedLayout.tsx

@@ -20,7 +20,8 @@ import {
     FileText,
     Wallet,
     BarChart3,
-    FileSpreadsheet
+    FileSpreadsheet,
+    BookOpen
 } from "lucide-react";
 import { toast, Toaster } from "sonner";
 import { useState, useEffect, useMemo } from "react";
@@ -133,8 +134,15 @@ export default function AuthenticatedLayout({
             id: "production-management",
             label: "生產管理",
             icon: <Boxes className="h-5 w-5" />,
-            permission: "production_orders.view",
+            permission: ["production_orders.view", "recipes.view"],
             children: [
+                {
+                    id: "recipe-list",
+                    label: "配方管理",
+                    icon: <BookOpen className="h-4 w-4" />,
+                    route: "/recipes",
+                    permission: "recipes.view",
+                },
                 {
                     id: "production-order-list",
                     label: "生產工單",
@@ -532,7 +540,7 @@ export default function AuthenticatedLayout({
                 "flex-1 flex flex-col transition-all duration-300 min-h-screen overflow-auto",
                 "lg:ml-64",
                 isCollapsed && "lg:ml-20",
-                "pt-16" // Always allow space for header
+                "pt-16" // 始終為頁首保留空間
             )}>
                 <div className="relative">
                     <div className="container mx-auto px-6 pt-6 max-w-7xl">