feat(hyprland): implement declarative monitor scaling and add scale picker to welcome wizard

flake.nix

@@ -211,10 +211,8 @@
               # Live-ISO-only welcome. Pops a notification a few seconds
               # after the graphical session is up and opens a terminal
               # parked at the installer command, so the user never has to
-              # hunt for it. Force highres monitor detection as some
-              # hardware defaults to 1024x768.
+              # hunt for it.
               wayland.windowManager.hyprland.extraConfig = nixpkgs.lib.mkAfter ''
-                monitor = , highres, auto, 1
                 exec-once = sh -c 'sleep 3; notify-send -u critical -t 0 "Welcome to Nomarchy" "Run \`sudo /etc/install.sh\` in the open terminal — or \`--dry-run\` to preview."'
 
                 exec-once = sh -c 'sleep 4; alacritty --title "Nomarchy Installer" -e bash -lc "echo; echo \"Welcome to the Nomarchy live ISO.\"; echo; echo \"  sudo /etc/install.sh           # install\"; echo \"  sudo /etc/install.sh --dry-run # preview only\"; echo \"  sudo /etc/install.sh --resume  # resume after an interrupt\"; echo; exec bash"'