refactor: consolidate all roles into ansible/roles/ and update ansible.cfg

- Move all roles from playbooks/roles/ to roles/
- Update roles_path in ansible.cfg
- Add cast user to common role
- Create standalone podman role
- Add semaphore role with Podman + Quadlet support

ansible/ansible.cfg

@@ -209,7 +209,7 @@ private_key_file=~/.ssh/ansible
 remote_user=wed
 
 # (pathspec) Colon-separated paths in which Ansible will search for Roles.
-roles_path=/opt/git/homelab/ansible/playbooks/roles:/Users/rblundon/.ansible/roles:/usr/share/ansible/roles:/etc/ansible/roles
+roles_path=./roles
 
 # (string) Set the main callback used to display Ansible output. You can only have one at a time.
 # You can have many other callbacks, but just one can be in charge of stdout.