Add Authentik SSO service and refactor Valkey configuration to use native tools and consolidated systemd service

roles/authentik/handlers/main.yml

@@ -0,0 +1,28 @@
+---
+# Authentik Role Handlers
+
+- name: reload systemd
+  systemd:
+    daemon_reload: yes
+
+- name: reload user systemd for authentik
+  systemd:
+    daemon_reload: yes
+    scope: user
+  become: yes
+  become_user: "{{ authentik_user }}"
+
+- name: restart authentik pod
+  systemd:
+    name: "{{ authentik_pod_name }}"
+    state: restarted
+    scope: user
+  become: yes
+  become_user: "{{ authentik_user }}"
+  when: authentik_service_state == "started"
+
+- name: reload caddy
+  systemd:
+    name: caddy
+    state: reloaded
+  when: caddy_service_enabled | default(false)