feat: 統一庫存管理分頁 UI 與寬度規範，並更新 SKILL 規範文件

app/Modules/Inventory/Controllers/WarehouseController.php

@@ -24,6 +24,11 @@ class WarehouseController extends Controller
             });
         }
 
+        $perPage = $request->input('per_page', 10);
+        if (!in_array($perPage, [10, 20, 50, 100])) {
+            $perPage = 10;
+        }
+
         $warehouses = $query->withSum('inventories as book_stock', 'quantity') // 帳面庫存 = 所有庫存總和
             ->withSum(['inventories as available_stock' => function ($query) {
                 // 可用庫存 = 庫存 > 0 且 品質正常 且 (未過期 或 無效期) 且 倉庫類型不為瑕疵倉
@@ -44,7 +49,7 @@ class WarehouseController extends Controller
                     ->whereRaw('(SELECT COALESCE(SUM(quantity), 0) FROM inventories WHERE warehouse_id = ss.warehouse_id AND product_id = ss.product_id) < ss.safety_stock');
             }])
             ->orderBy('created_at', 'desc')
-            ->paginate(10)
+            ->paginate($perPage)
             ->withQueryString();
 
         // 移除原本對 is_sellable 的手動修正邏輯，現在由 type 自動過濾
@@ -67,7 +72,7 @@ class WarehouseController extends Controller
         return Inertia::render('Warehouse/Index', [
             'warehouses' => $warehouses,
             'totals' => $totals,
-            'filters' => $request->only(['search']),
+            'filters' => $request->only(['search', 'per_page']),
         ]);
     }