Running Vale across on the following files affected by this PR:

- product/ai-gateway.mdx
- product/ai-gateway/universal-api.mdx
- product/ai-gateway/chat-completions.mdx
- product/ai-gateway/messages-api.mdx
- product/ai-gateway/responses-api.mdx

Attempting to initialize Vale linter...
No customer vale configuration detected. Using Mintlify's default configuration.
Attempting to run Vale spellcheck...
There was an error running Vale:

Error: Contact the Mintlify team for assistance.