Move CCC menu from top-level to under AI configuration section
## Summary
Follow up to:
#3586239
Move the top-level CCC menu item into the AI configuration area like other AI modules.
## Problem/motivation
CCC was configured to have a top-level menu similar to creating site content, but really should live with other AI configuration.
## Solution
Move it underneath "Tools and automation".
Here's the plan[](https://git.drupalcode.org/-/project/191993/uploads/06a70ffe4bb4d3e8c35ece5e58f16773/ccc_menu_relocation.plan.md).
## Tasks
- Update code
- Review and test
## AI usage
- [x] AI assisted issue (for the plan)
- [x] AI generated code
issue