feat: 新增平台

templates/admin_config.html

@@ -19,6 +19,7 @@
                 <a href="/admin/dashboard" class="nav-item">仪表板</a>
                 <a href="/admin/users" class="nav-item">用户管理</a>
                 <a href="/admin/apis" class="nav-item">接口管理</a>
+                <a href="/admin/redeem-codes" class="nav-item">兑换码</a>
                 <a href="/admin/config" class="nav-item active">系统配置</a>
                 <a href="/admin/logs" class="nav-item">日志审计</a>
             </nav>