get https://sandbox.uk.rootplatform.com/v1/insurance/apps//files/download/
Download a file by its unique file ID. Files are typically attachments that have been uploaded to the system and associated with various entities like policies, claims, applications, etc.
Note: A filename can optionally be appended to the URL for readability (e.g., /apps/{organization_id}/files/download/{file_id}/report.pdf), but it is not used for file identification.