chore(dotfiles): streamline workstation configuration workflows

system-config/config/user/laptop/hypr/machine.lua

@@ -2,6 +2,13 @@
 -- Noctalia replaces the i3-era Redshift, Polybar, Blueman Applet, and Picom stack.
 return {
   is_laptop = true,
+  -- Use the colon-free user-config alias for the stable PCI path rather than
+  -- cardN, whose numbering can change between boots. AQ_DRM_DEVICES itself
+  -- uses colons as device separators. This keeps Hyprland off the NVIDIA dGPU
+  -- so it can enter Runtime D3 when no application is explicitly offloaded.
+  environment = {
+    AQ_DRM_DEVICES = os.getenv("HOME") .. "/.config/hypr/intel-drm",
+  },
   input = {
     touchpad = {
       -- Standard laptop behavior: one/two/three-finger taps map to