fix(zod-openapi): Fix basePath method to transfer defaultHook of the parent app.

[DavidHavl]

There is currently an issue with basePath method where it does not transfer defaultHook to the newly created instance.
This pull request fixes it.

In the following code (taken from the current docs) the defaultHook is never called because it does not exist on the new instance created when basePath method is called.

const app = new OpenAPIHono({
  defaultHook: (result, c) => {
    if (!result.success) {
      return c.json(
        {
          ok: false,
          errors: formatZodErrors(result),
          source: 'custom_error_handler',
        },
        422
      )
    }
  },
}).basePath('/api/v1')

[changeset-bot]

🦋 Changeset detected

Latest commit: 828e136

The changes in this PR will be included in the next version bump.

This PR includes changesets to release 1 package

Name	Type
@hono/zod-openapi	Patch

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Click here if you're a maintainer who wants to add another changeset to this PR

[yusukebe]

I think this change is not necessary. What is it for?

[DavidHavl]

You are right, this is not necessary per se. That code was showing typescript error so I just fixed it so I could run the whole test suite.

[yusukebe]

We can ignore the typescript error, so please remove it!

[DavidHavl]

Ok. Removed.

[yusukebe]

Hi @DavidHavl

Thank you for the PR. I've left the comment. And could you run yarn changeset? This will be a patch change.

[yusukebe]

@DavidHavl

Thanks! Last one. thing. Run yarn changeset on the top of the project, add it, and push!

[DavidHavl]

Done

[yusukebe]

LGTM!

[yusukebe]

@DavidHavl

Merge now. Thanks!