refactor: move services/open-webui.nix to services/llm.nix

hosts/cmdframe/default.nix

@@ -13,7 +13,7 @@
     ../../virtualisation/podman.nix
     ../../virtualisation/libvirt.nix
     ../../modules/systemdNotify.nix
-    ../../services/open-webui.nix
+    ../../services/llm.nix
     inputs.seven-modules.nixosModules.seven
   ];
 

hosts/home-pc/default.nix

@@ -20,7 +20,7 @@
     ../../services/samba/home-pc.nix
     ../../services/restic/home-pc.nix
     ../../services/pcscd.nix
-    ../../services/open-webui.nix
+    ../../services/llm.nix
     inputs.seven-modules.nixosModules.seven
   ];