feat: ✨ 新增获取登录用户信息函数

app/fns.go

@@ -101,6 +101,11 @@ var ErrInvalidToken = &Error{
 	Message: "错误令牌",
 }
 
+func UserTokenFromContext(ctx context.Context) (*UserToken, bool) {
+	ut, ok := ctx.Value("USER_TOKEN").(*UserToken)
+	return ut, ok
+}
+
 func CheckAuthToken(next http.Handler) http.Handler {
 	return http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
 		token, _, _ := jwtauth.FromContext(r.Context())