优化部分设置逻辑

auth.go

@@ -13,7 +13,13 @@ import (
 	"golang.org/x/crypto/bcrypt"
 )
 
-var jwtSecret = []byte("frpc-console-secret-key-2024")
+func getJwtSecret() []byte {
+	secret, err := GetJwtSecret()
+	if err != nil {
+		log.Fatal("❌ 获取 JWT 密钥失败:", err)
+	}
+	return []byte(secret)
+}
 
 type Claims struct {
 	Username string `json:"username"`
@@ -29,12 +35,12 @@ func GenerateJWT(username string) (string, error) {
 		},
 	}
 	token := jwt.NewWithClaims(jwt.SigningMethodHS256, claims)
-	return token.SignedString(jwtSecret)
+	return token.SignedString(getJwtSecret())
 }
 
 func ParseJWT(tokenString string) (*Claims, error) {
 	token, err := jwt.ParseWithClaims(tokenString, &Claims{}, func(token *jwt.Token) (interface{}, error) {
-		return jwtSecret, nil
+		return getJwtSecret(), nil
 	})
 	if err != nil {
 		return nil, err