fix: use the token

internal/auth/refresh.go

@@ -74,8 +74,8 @@ func (h *AuthHandler) refreshToken(w http.ResponseWriter, r *http.Request) {
 	w.Header().Set("Content-Type", "application/json")
 
 	if err := encoder.Encode(Response{
-		AccessToken:  access,
-		RefreshToken: refresh,
+		AccessToken:  access.Token,
+		RefreshToken: refresh.Token,
 	}); err != nil {
 		web.Error(w, "failed to encode response", http.StatusInternalServerError)
 	}