feat: add openvpn on brew cask conf & update aerospace

devshells/web-bun.nix

@@ -12,6 +12,8 @@ pkgs.mkShell {
   shellHook = ''
     mkdir -p "$PWD/.cache/bun"
     export BUN_INSTALL_CACHE="$PWD/.cache/bun"
+    ccusage() { bunx ccusage "$@"; }
+    export -f ccusage
     echo "Bun/Node web shell ready"
     echo "Bun: ${pkgs.bun.version}"
     echo "Node: ${pkgs.nodejs_20.version}"

modules/darwin/home/programs/aerospace/default.nix

@@ -17,6 +17,6 @@ in {
       keepAlive = true;
     };
 
-    userSettings = userSettings;
+    settings = userSettings;
   };
 }

modules/darwin/homebrew.nix

@@ -32,6 +32,7 @@ in {
         "neohtop"
         "orbstack"
         "ghostty"
+        "openvpn-connect"
       ];
       description = "Homebrew casks to install.";
     };