refactor: 重构集群主从节点模式

internal/types/types.go

@@ -2,6 +2,7 @@ package types
 
 // ConfigManager defines the interface for configuration management
 type ConfigManager interface {
+	IsMaster() bool
 	GetAuthConfig() AuthConfig
 	GetCORSConfig() CORSConfig
 	GetPerformanceConfig() PerformanceConfig
@@ -41,6 +42,7 @@ type SystemSettings struct {
 type ServerConfig struct {
 	Port                    int    `json:"port"`
 	Host                    string `json:"host"`
+	IsMaster                bool   `json:"is_master"`
 	ReadTimeout             int    `json:"read_timeout"`
 	WriteTimeout            int    `json:"write_timeout"`
 	IdleTimeout             int    `json:"idle_timeout"`