Documentation error: Request Body shows [undefined] in multiple endpoints

### Describe the Bug

In the official Directus documentation (example: https://directus.io/docs/api/utilities#export-data-to-a-file), the Request Body section incorrectly displays [undefined].

This issue is not limited to the export endpoint — it also occurs in other endpoints across the documentation, making it unclear what parameters are required.

When testing the endpoints, if required fields (such as "query") are not provided, the API responds with errors like:
Invalid payload. "query" is required

This indicates that the documentation is not showing the actual required body structure.

Expected behavior
- Documentation should display the correct request body schema for each endpoint.
- Required fields (e.g., "query") should be clearly indicated with their format.

Current behavior
- Request Body sections show [undefined].
- The API rejects requests when mandatory fields are missing.

### To Reproduce

Steps to Reproduce
1. Open Postman.
2. Make a request to the affected endpoint (e.g., export) using valid credentials.
3. Check the official documentation for the endpoint.
4. Observe that the Request Body is displayed as [undefined].
5. Send the request without "query" and see the error response.

### Directus Version

v11.8.0

### Hosting Strategy

Self-Hosted (Custom)

### Database

_No response_