Create document for application

This endpoint creates a new document record in a pending state. Each document represents a single file, which needs to be uploaded shortly after document creation.

If the document file is not uploaded before the expires_at timestamp included in the response, the record will be automatically deleted.

The document file can be uploaded by making a PUT request to the upload_url provided in the response. Document uploads must meet the following criteria:

• Files have a maximum size of 50MB

• Files must have a content-type of 'application/pdf'