bug: OpenAPI spec (JSON) not served on nested paths.

[staciax]

Works fine on a simple path like /a — JSON spec loads, endpoints and schemas show up.

But when I try a nested path like /a/b, the docs page loads, but the spec fails to load. Console shows it trying /a/a/b/json instead of /a/b/json, so nothing shows in the UI.

Looks like the plugin is calculating the spec URL wrong for nested routes.

src/index.ts

import { Elysia, t } from 'elysia'
import { openapi } from '@elysiajs/openapi'

new Elysia()
    .use(openapi({
        path: '/a/b'
    }))
    .get('/', () => 'hi', { response: t.String({ description: 'sample description' }) })
    .listen(8080);

version

  "dependencies": {
    "@elysiajs/openapi": "~1.4.11",
    "elysia": "~1.4.16"
  }

console

standalone.js:34920 @scalar/api-reference@1.39.3 standalone.js:34618 [CLIENT]: Client element changed. Unmounting client... 
standalone.js:34618 [CLIENT]: Client element changed. Mounting client...
standalone.js:34771 GET http://localhost:8080/a/a/b/json 404 (Not Found)