feat: Add ThinkPad T14 Intel Gen 6 support

- Add T14 Gen 6 hardware profile with Lunar Lake CPU/GPU support
- Include Intel Arc graphics and modern kernel requirements
- Update README.md and flake.nix with new module entries
- Follow CONTRIBUTING.md guidelines for profile structure

Author: bashfulrobot

README.md

@@ -288,6 +288,7 @@ See code for all available configurations.
 | [Lenovo ThinkPad T14 AMD Gen 4](lenovo/thinkpad/t14/amd/gen4)                     | `<nixos-hardware/lenovo/thinkpad/t14/amd/gen4>`         | `lenovo-thinkpad-t14-amd-gen4`    |
 | [Lenovo ThinkPad T14 AMD Gen 5](lenovo/thinkpad/t14/amd/gen5)                     | `<nixos-hardware/lenovo/thinkpad/t14/amd/gen5>`         | `lenovo-thinkpad-t14-amd-gen5`    |
 | [Lenovo ThinkPad T14](lenovo/thinkpad/t14)                                        | `<nixos-hardware/lenovo/thinkpad/t14>`                  | `lenovo-thinkpad-t14`              |
+| [Lenovo ThinkPad T14 Intel Gen 6](lenovo/thinkpad/t14/intel/gen6)                | `<nixos-hardware/lenovo/thinkpad/t14/intel/gen6>`       | `lenovo-thinkpad-t14-intel-gen6`   |
 | [Lenovo ThinkPad T14s AMD Gen 1](lenovo/thinkpad/t14s/amd/gen1)                   | `<nixos-hardware/lenovo/thinkpad/t14s/amd/gen1>`        | `lenovo-thinkpad-t14s-amd-gen1`    |
 | [Lenovo ThinkPad T14s AMD Gen 4](lenovo/thinkpad/t14s/amd/gen4)                   | `<nixos-hardware/lenovo/thinkpad/t14s/amd/gen4>`        | `lenovo-thinkpad-t14s-amd-gen4`    |
 | [Lenovo ThinkPad T14s](lenovo/thinkpad/t14s)                                      | `<nixos-hardware/lenovo/thinkpad/t14s>`                 | `lenovo-thinkpad-t14s`             |

flake.lock

@@ -223,6 +223,7 @@
           lenovo-thinkpad-t14-amd-gen3 = import ./lenovo/thinkpad/t14/amd/gen3;
           lenovo-thinkpad-t14-amd-gen4 = import ./lenovo/thinkpad/t14/amd/gen4;
           lenovo-thinkpad-t14-amd-gen5 = import ./lenovo/thinkpad/t14/amd/gen5;
+          lenovo-thinkpad-t14-intel-gen6 = import ./lenovo/thinkpad/t14/intel/gen6;
           lenovo-thinkpad-t14s = import ./lenovo/thinkpad/t14s;
           lenovo-thinkpad-t14s-amd-gen1 = import ./lenovo/thinkpad/t14s/amd/gen1;
           lenovo-thinkpad-t14s-amd-gen4 = import ./lenovo/thinkpad/t14s/amd/gen4;

flake.nix

@@ -0,0 +1,9 @@
+{ lib, pkgs, ... }:
+
+{
+  imports = [
+    ../.
+    ../../../../common/cpu/intel
+    ../../../../common/gpu/intel
+  ];
+}

lenovo/thinkpad/t14/intel/default.nix

@@ -0,0 +1,20 @@
+{
+  lib,
+  pkgs,
+  config,
+  ...
+}:
+
+{
+  imports = [
+    ../../.
+    ../../../../../common/cpu/intel/lunar-lake
+  ];
+
+  # T14 Gen 6 uses Intel Core Ultra processors (Lunar Lake architecture)
+  # with integrated Intel Arc graphics
+  # The lunar-lake module already includes appropriate GPU support
+
+  # Ensure modern kernel for full Lunar Lake support
+  boot.kernelPackages = lib.mkIf (lib.versionOlder pkgs.linux.version "6.8") pkgs.linuxPackages_latest;
+}