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/roles/haproxy/handlers/main.yml

@@ -0,0 +1,26 @@
+---
+# ansible/roles/haproxy/handlers/main.yml
+
+- name: Reload haproxy
+  ansible.builtin.systemd:
+    name: haproxy
+    state: reloaded
+  listen: reload haproxy
+
+- name: Restart haproxy
+  ansible.builtin.systemd:
+    name: haproxy
+    state: restarted
+    daemon_reload: true
+  listen: restart haproxy
+
+- name: Reload systemd
+  ansible.builtin.systemd:
+    daemon_reload: true
+  listen: reload systemd
+
+- name: Restart rsyslog
+  ansible.builtin.systemd:
+    name: rsyslog
+    state: restarted
+  listen: restart rsyslog