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

roles/authentik/meta/main.yml

@@ -0,0 +1,37 @@
+---
+galaxy_info:
+  author: Rick's Infrastructure Team
+  description: Containerized Authentik authentication service for rick-infra
+  company: Personal Infrastructure
+  
+  license: MIT
+  
+  min_ansible_version: "2.9"
+  
+  platforms:
+    - name: ArchLinux
+      versions:
+        - all
+  
+  galaxy_tags:
+    - authentication
+    - authentik
+    - containers
+    - podman
+    - archlinux
+
+dependencies:
+  - role: postgresql
+    tags: ['postgresql', 'infrastructure']
+  - role: valkey
+    tags: ['valkey', 'infrastructure']
+  - role: podman
+    tags: ['podman', 'infrastructure']
+  - role: caddy
+    tags: ['caddy']
+
+# Containerized Authentik authentication service
+# - Creates its own database using PostgreSQL infrastructure
+# - Uses Valkey for caching (database 1)
+# - Deployed via Podman quadlets with service-specific user
+# - Integrated with Caddy reverse proxy