diff --git a/internal/config/config.go b/internal/config/config.go
index d408825..e83c5be 100644
--- a/internal/config/config.go
+++ b/internal/config/config.go
@@ -58,7 +58,6 @@ const (
 type Config struct {
 	Variables   VariablesConfig   `yaml:"variables"`
 	Logging     LoggingConfig     `yaml:"logging"`
-	Shutdown    ShutdownConfig    `yaml:"shutdown"`
 	Servers     []ServerConfig    `yaml:"servers"`
 	Stream      []StreamConfig    `yaml:"stream"`
 	Monitoring  MonitoringConfig  `yaml:"monitoring"`
@@ -66,6 +65,7 @@ type Config struct {
 	Resolver    ResolverConfig    `yaml:"resolver"`
 	Server      ServerConfig      `yaml:"server"`
 	Performance PerformanceConfig `yaml:"performance"`
+	Shutdown    ShutdownConfig    `yaml:"shutdown"`
 }
 
 // VariablesConfig 自定义变量配置。
diff --git a/internal/http2/server.go b/internal/http2/server.go
index cc573ce..676294f 100644
--- a/internal/http2/server.go
+++ b/internal/http2/server.go
@@ -36,38 +36,17 @@ import (
 //
 // 包装 golang.org/x/net/http2 服务器，提供与 fasthttp handler 的集成。
 type Server struct {
-	// stopChan 停止信号通道
-	stopChan chan struct{}
-
-	// http2Server HTTP/2 服务器实例
-	http2Server *http2.Server
-
-	// config HTTP/2 配置
-	config *config.HTTP2Config
-
-	// tlsConfig TLS 配置
-	tlsConfig *tls.Config
-
-	// listener TCP 监听器
-	listener net.Listener
-
-	// handler fasthttp 请求处理器
-	handler fasthttp.RequestHandler
-
-	// mu 读写锁
-	mu sync.RWMutex
-
-	// running 服务器运行状态
-	running bool
-
-	// pool 连接池
-	pool *connectionPool
-
-	// connWg 连接等待组，用于优雅关闭
-	connWg sync.WaitGroup
-
-	// GracefulShutdownTimeout 优雅关闭超时时间
+	listener                net.Listener
+	http2Server             *http2.Server
+	config                  *config.HTTP2Config
+	tlsConfig               *tls.Config
+	pool                    *connectionPool
+	handler                 fasthttp.RequestHandler
+	stopChan                chan struct{}
+	connWg                  sync.WaitGroup
 	GracefulShutdownTimeout time.Duration
+	mu                      sync.RWMutex
+	running                 bool
 }
 
 // NewServer 创建 HTTP/2 服务器。
@@ -607,7 +586,7 @@ func (p *connectionPool) count(key string) int {
 }
 
 // closeAll 关闭所有连接。
-func (p *connectionPool) closeAll() { //nolint:unused // reserved for future use
+func (p *connectionPool) closeAll() {
 	p.mu.Lock()
 	defer p.mu.Unlock()
 
diff --git a/internal/lua/register.go b/internal/lua/register.go
index e68cc69..16eb911 100644
--- a/internal/lua/register.go
+++ b/internal/lua/register.go
@@ -5,8 +5,8 @@ import glua "github.com/yuin/gopher-lua"
 
 // APIMethod 表示一个 Lua API 方法
 type APIMethod struct {
-	Name string
 	Func func(*glua.LState) int
+	Name string
 }
 
 // RegisterAPIMethods 批量注册 API 方法到 Lua 表