refactor: 重構 VendorProduct API 與新增進貨單重複檢查前端邏輯

1. 將 VendorProductController 中的 Eloquent 關聯操作改為透過 ProcurementService 使用 DB 操作，解除跨模組 Model 直接依賴。
2. ProcurementService 加入 vendor product 的資料存取方法。
3. 進貨單建立前端 (GoodsReceipt/Create.tsx) 新增重複進貨檢查與警告對話框邏輯。

resources/js/Pages/Inventory/GoodsReceipt/Create.tsx

@@ -35,6 +35,7 @@ import {
 import axios from 'axios';
 import { PurchaseOrderStatus } from '@/types/purchase-order';
 import { STATUS_CONFIG } from '@/constants/purchase-order';
+import { DuplicateWarningDialog } from './components/DuplicateWarningDialog';
 
 
 
@@ -89,6 +90,11 @@ export default function GoodsReceiptCreate({ warehouses, pendingPurchaseOrders,
     const [productSearch, setProductSearch] = useState('');
     const [foundProducts, setFoundProducts] = useState<any[]>([]);
 
+    // Duplicate Check States
+    const [warningOpen, setWarningOpen] = useState(false);
+    const [warnings, setWarnings] = useState<any[]>([]);
+    const [isCheckingDuplicate, setIsCheckingDuplicate] = useState(false);
+
     const { data, setData, post, processing, errors } = useForm({
         type: 'standard', // 'standard', 'miscellaneous', 'other'
         warehouse_id: '',
@@ -280,9 +286,30 @@ export default function GoodsReceiptCreate({ warehouses, pendingPurchaseOrders,
         });
     }, [nextSequences, JSON.stringify(data.items.map(i => ({ m: i.batchMode, c: i.originCountry, s: i.product_code, p: i.product_id }))), data.received_date]);
 
-    const submit = (e: React.FormEvent) => {
-        e.preventDefault();
-        post(route('goods-receipts.store'));
+    const submit = async (e: React.FormEvent, force: boolean = false) => {
+        if (e) e.preventDefault();
+
+        // 如果不是強制提交，先檢查重複
+        if (!force) {
+            setIsCheckingDuplicate(true);
+            try {
+                const response = await axios.post(route('goods-receipts.check-duplicate'), data);
+                if (response.data.has_warnings) {
+                    setWarnings(response.data.warnings);
+                    setWarningOpen(true);
+                    return; // 停止並顯示警告
+                }
+            } catch (error) {
+                console.error("Duplicate check failed", error);
+                // 檢查失敗則繼續，或視為阻擋？這裡選擇繼續
+            } finally {
+                setIsCheckingDuplicate(false);
+            }
+        }
+
+        post(route('goods-receipts.store'), {
+            onSuccess: () => setWarningOpen(false),
+        });
     };
 
 
@@ -738,13 +765,21 @@ export default function GoodsReceiptCreate({ warehouses, pendingPurchaseOrders,
                         size="lg"
                         className="button-filled-primary px-12 h-14 rounded-xl shadow-lg text-lg font-bold transition-all hover:scale-[1.02] active:scale-[0.98]"
                         onClick={submit}
-                        disabled={processing || (data.type === 'standard' ? !selectedPO : !selectedVendor)}
+                        disabled={processing || isCheckingDuplicate || (data.type === 'standard' ? !selectedPO : !selectedVendor)}
                     >
                         <Save className="mr-2 h-5 w-5" />
-                        {processing ? '處理中...' : '確認進貨'}
+                        {processing || isCheckingDuplicate ? '處理中...' : '確認進貨'}
                     </Button>
                 </div>
             </div>
+
+            <DuplicateWarningDialog
+                open={warningOpen}
+                onClose={() => setWarningOpen(false)}
+                onConfirm={() => submit(null as any, true)}
+                warnings={warnings}
+                processing={processing}
+            />
         </AuthenticatedLayout >
     );
 }