fix: token 改为配置文件读取，不再自动生成；UI 全部汉化

internal/server/net.go

@@ -1,10 +1,7 @@
 package server
 
 import (
-	"crypto/rand"
-	"encoding/hex"
 	"fmt"
-	"log/slog"
 	"net"
 )
 
@@ -22,13 +19,3 @@ func GetLANIP() (string, error) {
 	return "", fmt.Errorf("no LAN IP found")
 }
 
-// GenerateToken creates a cryptographically random token for WS auth.
-func GenerateToken() string {
-	b := make([]byte, 16)
-	if _, err := rand.Read(b); err != nil {
-		slog.Error("failed to generate token", "error", err)
-		// Fallback to a less secure but functional token
-		return "voicepaste-fallback-token"
-	}
-	return hex.EncodeToString(b)
-}