Create a short link for a chat message

Creates a short link for a chat message. If a short link already exists for the message, the existing short link is returned. Visibility is automatically inherited from the parent chat (e.g., 'creator' or 'reviewer' for topic chats, null for member chats). Requires `canCreateMessageShortLink` (read access to the message's chat).

curl -X POST "https://example.com/chats/message/497f6eca-6276-4993-bfeb-53cbbbba6f08/shortlink"

{  "code": "Xk7mPq2R",  "shortUrl": "https://app.nurama.com/s/Xk7mPq2R"}