重构代码结构与认证体系，集成异步任务消费者

web/auth/errors.go

@@ -0,0 +1,24 @@
+package auth
+
+type AuthErr string
+
+func (e AuthErr) Error() string {
+	return string(e)
+}
+
+// 认证错误
+const (
+	ErrAuthenticateUnauthorize = AuthErr("令牌无效")
+	ErrAuthenticateForbidden   = AuthErr("没有权限")
+)
+
+// 授权错误
+const (
+	ErrAuthorizeInvalidRequest       = AuthErr("invalid_request")
+	ErrAuthorizeInvalidClient        = AuthErr("invalid_client")
+	ErrAuthorizeInvalidGrant         = AuthErr("invalid_grant")
+	ErrAuthorizeInvalidScope         = AuthErr("invalid_scope")
+	ErrAuthorizeUnauthorizedClient   = AuthErr("unauthorized_client")
+	ErrAuthorizeUnsupportedGrantType = AuthErr("unsupported_grant_type")
+	ErrAuthorizeInvalidPKCE          = AuthErr("invalid_pkce")
+)