Which middleware is the feature for?

@hono/node-ws

What is the feature you are proposing?

There are multiple cases where a custom HttpException thrown in upgradeWebSocket method would make sense, in particular throwing an HTTP 401 for Unauthorized requests.
Currently, when using @hono/node-ws, no matter which HttpException is thrown, the Websocket will be closed with HTTP 400 (as seen here: https://github.com/honojs/middleware/blob/main/packages/node-ws/src/index.ts#L85)

For example:

app.get(
  "/ws",
  upgradeWebSocket(async (c) => {
    if (!isAuthorized(c.user)) {
      throw new HTTPException(401, { message: "Unauthorized" });
    }
    ...
  }
)

The expected result is to receive HTTP/1.1 401 Unauthorized response, but the actual result is: HTTP/1.1 400 Bad Request