fix(admin): replace scroll.x='max-content' with calculated fixed widths for all tables

apps/admin/src/pages/Deposits/index.tsx

@@ -414,7 +414,7 @@ const DepositsPage: React.FC = () => {
                   dataSource={filteredData}
                   rowKey="id"
                   loading={loading}
-                  scroll={{ x: 'max-content' }}
+                  scroll={{ x: 1200 }}
                   pagination={{ pageSize: 15, showTotal: (total) => `共 ${total} 条` }}
                 />
               </>
@@ -429,7 +429,7 @@ const DepositsPage: React.FC = () => {
                 dataSource={pendingRefunds}
                 rowKey="id"
                 loading={pendingLoading}
-                scroll={{ x: 'max-content' }}
+                scroll={{ x: 1200 }}
                 pagination={{ pageSize: 15, showTotal: (total) => `共 ${total} 条` }}
               />
             ),