refactor(modular): 完成第二階段儀表板解耦與模型清理

app/Modules/Procurement/Controllers/VendorController.php

@@ -78,8 +78,34 @@ class VendorController extends Controller
      */
     public function show(Vendor $vendor): Response
     {
-        $vendor->load(['products.baseUnit', 'products.largeUnit']);
+        // $vendor->load(['products.baseUnit', 'products.largeUnit']); // REMOVED: Cross-module relation
         
+        // 1. 獲取關聯的 Product IDs 與 Pivot Data
+        $pivots = \Illuminate\Support\Facades\DB::table('product_vendor')
+            ->where('vendor_id', $vendor->id)
+            ->get();
+            
+        $productIds = $pivots->pluck('product_id')->toArray();
+        
+        // 2. 透過 Service 獲取 Products
+        $products = $this->inventoryService->getProductsByIds($productIds)->keyBy('id');
+        
+        $supplyProducts = $pivots->map(function ($pivot) use ($products) {
+            $product = $products->get($pivot->product_id);
+            if (!$product) return null;
+            
+            return (object) [
+                'id' => (string) $pivot->id,
+                'productId' => (string) $product->id,
+                'productName' => $product->name,
+                'unit' => $product->baseUnit?->name ?? 'N/A',
+                'baseUnit' => $product->baseUnit?->name,
+                'largeUnit' => $product->largeUnit?->name,
+                'conversionRate' => (float) $product->conversion_rate,
+                'lastPrice' => (float) $pivot->last_price,
+            ];
+        })->filter()->values();
+
         $formattedVendor = (object) [
             'id' => (string) $vendor->id,
             'code' => $vendor->code,
@@ -93,16 +119,7 @@ class VendorController extends Controller
             'email' => $vendor->email,
             'address' => $vendor->address,
             'remark' => $vendor->remark,
-            'supplyProducts' => $vendor->products->map(fn($p) => (object) [
-                'id' => (string) $p->pivot->id,
-                'productId' => (string) $p->id,
-                'productName' => $p->name,
-                'unit' => $p->baseUnit?->name ?? 'N/A',
-                'baseUnit' => $p->baseUnit?->name,
-                'largeUnit' => $p->largeUnit?->name,
-                'conversionRate' => (float) $p->conversion_rate,
-                'lastPrice' => (float) $p->pivot->last_price,
-            ]),
+            'supplyProducts' => $supplyProducts,
         ];
 
         return Inertia::render('Vendor/Show', [