Get a signed inline-view URL for a document asset

Returns a short-lived signed URL for rendering a `document` asset inline in the viewer. Serves the processed `media` derivative (an optimised PDF with permission flags stripped), not the original — downloads of the original go through `POST /assets/download`. Requires `canGetAsset`. The asset must be `active`, have `mediaType: 'document'`, and have an active `media` file (i.e. post-processing finished successfully); otherwise a 400 is returned and the document cannot be viewed inline. The `media` PDF is capped at a maximum page count, so `pagesTruncated`, `truncatedFrom` and `originalPageCount` tell the viewer whether and where pages are missing.

curl -X GET "https://example.com/assets/497f6eca-6276-4993-bfeb-53cbbbba6f08/document-url"

{  "url": "string",  "expires": 1705988395,  "pageCount": 0,  "pagesTruncated": true,  "truncatedFrom": "start",  "originalPageCount": 0}