refactor: move types package to internal

internal/config/config.go

@@ -1,6 +1,8 @@
 package config
 
-import "tunnel_pls/types"
+import (
+	"tunnel_pls/internal/types"
+)
 
 type Config interface {
 	Domain() string

internal/config/config_test.go

@@ -3,7 +3,7 @@ package config
 import (
 	"os"
 	"testing"
-	"tunnel_pls/types"
+	"tunnel_pls/internal/types"
 
 	"github.com/stretchr/testify/assert"
 )

internal/config/loader.go

@@ -6,7 +6,7 @@ import (
 	"os"
 	"strconv"
 	"strings"
-	"tunnel_pls/types"
+	"tunnel_pls/internal/types"
 
 	"github.com/joho/godotenv"
 )
@@ -32,7 +32,7 @@ type config struct {
 
 	bufferSize int
 	headerSize int
-	
+
 	pprofEnabled bool
 	pprofPort    string