Issue Summary
The popup toolbar with the "Save as snippet" button appears for the author role, and clicking to create a snippet pops up a text entry box, but submitting throws a 422 error from the server.
If authors can't save snippets, they shouldn't see the option.
Steps to Reproduce
see above.
Ghost Version
5.112
Node.js Version
20
How did you install Ghost?
dev install
Database type
MySQL 8
Browser & OS version
Chrome, recent on windows 11
Relevant log / error output
Code of Conduct