Add hello world

[mintlify-development]

Added 'hello world' to the top of the main documentation page

---

Note

Low Risk
Single documentation content change with no codepath, data, or security impact.

Overview
Adds a standalone hello world line at the top of index.mdx, directly under the frontmatter, so it renders above the existing introduction content.

^{Written by Cursor Bugbot for commit 85d8096. This will update automatically on new commits. Configure here.}

[cursor]

Cursor Bugbot has reviewed your changes and found 1 potential issue.

^{Bugbot Autofix is OFF. To automatically fix reported issues with Cloud Agents, enable Autofix in the Cursor dashboard.}

[cursor]

Test text "hello world" on production documentation page

Medium Severity

The literal text hello world added to the main documentation introduction page appears to be a test or placeholder string that was accidentally included. This will render as visible content on the production documentation landing page, degrading the user experience and looking unprofessional.