Problem

When a Proof doc is shared via the standard 'copy link' option, the resulting URL is:
https://www.proofeditor.ai/d/

This URL contains no access token. Any agent (or API client) trying to join with just the slug receives:
UNAUTHORIZED: Missing or invalid share token

There is no UI option to generate a tokenized share link. The standard 'copy link' is the only share option and it does not include a token. There is no workaround.

Expected

The standard shared link should include the token so it works immediately:
https://www.proofeditor.ai/d/?token=

Impact

• Agents cannot autonomously join shared docs
• No workaround exists within the UI
• The only option is for the document owner to share credentials manually (insecure and impractical)