fix: 开放ErrUnauthorized错误供外界使用

[longyue0521]

当前ginx开放给外界使用的仅有ErrNoResponse, 而ErrUnauthorized并未开放,所以下方代码也就无法被外界利用

// 如果里面有权限校验，那么会返回 401 错误（目前来看，主要是登录态校验）
		if errors.Is(err, errs.ErrUnauthorized) {
			slog.Debug("未授权", slog.Any("err", err))
			ctx.AbortWithStatus(http.StatusUnauthorized)
			return
		}

故开放ErrUnauthorized

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 83.75%. Comparing base (80840e6) to head (d74c06b).

Additional details and impacted files

@@           Coverage Diff           @@
##             main      #23   +/-   ##
=======================================
  Coverage   83.75%   83.75%           
=======================================
  Files          20       20           
  Lines         591      591           
=======================================
  Hits          495      495           
  Misses         88       88           
  Partials        8        8           

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