feat(bootstrap): install vendor-matched hardware packages

vars_baremetal_example.yml

@@ -61,3 +61,13 @@ system:
       sudo: true
     chroot:
       tool: "arch-chroot"
+    # firmware/microcode default to "auto" — on for physical, off for virtual.
+    # gpu and peripherals.* default to "auto" tied to desktop.enabled.
+    # Override only when you want non-default behavior.
+    gpu:
+      enabled: false      # set true for desktop installs
+      nvidia_driver: "auto"  # auto = open|proprietary|nouveau by GPU generation
+    peripherals:
+      displaylink: false  # explicit opt-in for DisplayLink docks
+    hardware:
+      profile: {}         # autodetect; or set to bake a golden-image profile