feat(vps): use real generated hardware-configuration.nix

Replaces the placeholder with the actual output of
nixos-generate-config from the installed VPS (real disk UUIDs,
qemu-guest profile, virtio kernel modules).

Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>

hosts/vps/hardware-configuration.nix

@@ -1,19 +1,26 @@
-{ lib, ... }:
+# Do not modify this file!  It was generated by ‘nixos-generate-config’
+# and may be overwritten by future invocations.  Please make changes
+# to /etc/nixos/configuration.nix instead.
+{ config, lib, pkgs, modulesPath, ... }:
 
-# PLACEHOLDER: this host has not been installed yet. Replace this whole file
-# with the real hardware-configuration.nix generated by `nixos-generate-config`
-# during the actual installation (it will pick up the real disk UUIDs,
-# filesystem types, and kernel modules for the VPS provider's image).
 {
-  imports = [ ];
+  imports =
+    [ (modulesPath + "/profiles/qemu-guest.nix")
+    ];
 
-  boot.initrd.availableKernelModules = [ "ata_piix" "uhci_hcd" "virtio_pci" "virtio_scsi" "sd_mod" "sr_mod" ];
+  boot.initrd.availableKernelModules = [ "ata_piix" "uhci_hcd" "virtio_pci" "virtio_scsi" "ahci" "sd_mod" "sr_mod" "virtio_blk" ];
   boot.initrd.kernelModules = [ ];
   boot.kernelModules = [ ];
   boot.extraModulePackages = [ ];
 
-  fileSystems."/" = {
+  fileSystems."/boot" =
-    device = "/dev/disk/by-uuid/00000000-0000-0000-0000-000000000000";
+    { device = "/dev/disk/by-uuid/9601-188F";
+      fsType = "vfat";
+      options = [ "fmask=0022" "dmask=0022" ];
+    };
+
+  fileSystems."/" =
+    { device = "/dev/disk/by-uuid/2fe62056-55d1-4d2a-97a4-74451f7a63d0";
       fsType = "ext4";
     };