services: add code-server web IDE at code.nordhammer.it

Deploys code-server on FredOS-Mediaserver (port 4444, user fred) with
Authelia one_factor auth and nginx reverse proxy. Includes claude-code
in system packages for use in the integrated terminal.

Also fixes anyrun launcher width to absolute 350px (was a tiny fraction).

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

settings/hyprland.nix

@@ -326,7 +326,7 @@ in
           plugins = [ "${pkgs.anyrun}/lib/libapplications.so" ];
           x.fraction = 0.5;
           y.fraction = 0.25;
-          width.fraction = 0.1;
+          width.absolute = 350;
           height.absolute = 0;
           margin = 16;
           hideIcons = false;