Change observability service ports and add Arrtrix content management

- Update ports for Alloy, Grafana, Loki, Prometheus, Promtail, Tempo,
  and
  Uptime Kuma to new ranges
- Add Arrtrix content management commands and subscriptions
- Implement Radarr and Sonarr client logic for movie and series
  management
- Add matrix commands for download and subscription management
- Add subscription repository with database schema and logic
- Update Arrtrix config and example config for content section
- Update help text and command processor to include new commands
- Update vendor hash for Arrtrix package

modules/nixos/services/observability/uptime-kuma/default.nix

@@ -15,11 +15,11 @@ in
       enable = true;
 
       settings = {
-        PORT = toString 9006;
+        PORT = toString 9500;
         HOST = "0.0.0.0";
       };
     };
     
-    networking.firewall.allowedTCPPorts = [ 9006 ];
+    networking.firewall.allowedTCPPorts = [ 9500 ];
   };
 }