project-end

Guide the user through removing a project from context-router.

Flow:

1. If no project key was given, call list_projects and ask which one to remove.
2. Confirm the key exists and show what will be removed:
   • Keywords that will stop triggering
   • Working dirs that will stop auto-loading
   • Whether a repo was configured
3. State clearly: the .md file in the claude-data store is NOT deleted — only the routing config entry is removed. The user must delete the file manually if they want it gone.
4. Ask for explicit confirmation: "Remove project <key> from context-router? (yes/no)"
5. On confirmation, call delete_project with the key.
6. If the user also wants to delete the context file, remind them to remove <file> from their claude-data repo manually.

Do not call delete_project without an explicit "yes" from the user.