feat: extract gaming config into dedicated gaming.nix module

Moves steam, gamemode, DualSense udev rules, and gaming packages
(lutris, winetricks, wine, dxvk, vkd3d-proton, mangohud, dualsensectl,
protonup-qt, prismlauncher) into gaming.nix. Also adds bluetooth/blueman
config to configuration.nix.

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

configuration.nix

@@ -9,6 +9,7 @@
     ./nvidia.nix
     ./shell.nix
     ./yami-dev-stack.nix
+    ./gaming.nix
   ];
 
   nix = {
@@ -58,6 +59,12 @@
     networkmanager.enable = true;
   };
 
+  hardware.bluetooth = {
+    enable = true;
+    powerOnBoot = true;
+  };
+  services.blueman.enable = true;
+
   time.timeZone = "Europe/Moscow";
 
   i18n = {
@@ -93,13 +100,6 @@
     tunMode.enable = true;
   };
 
-  programs.steam = {
-    enable = true;
-    remotePlay.openFirewall = true;
-    dedicatedServer.openFirewall = true;
-  };
-
-  programs.gamemode.enable = true;
 
   services.tailscale.enable = true;
   # Docker is now managed by yami-dev-stack.nix when that module is enabled.

gaming.nix

@@ -0,0 +1,32 @@
+{ pkgs, ... }:
+
+{
+  programs.steam = {
+    enable = true;
+    remotePlay.openFirewall = true;
+    dedicatedServer.openFirewall = true;
+  };
+
+  programs.gamemode.enable = true;
+
+  services.udev.extraRules = ''
+    # DualSense: тачпад не должен работать как мышь рабочего стола.
+    # Steam Input/SDL читают геймпад (включая тачпад) через hidraw,
+    # так что в играх он останется доступен как тачпад контроллера.
+    SUBSYSTEM=="input", ATTRS{name}=="Sony Interactive Entertainment DualSense Wireless Controller Touchpad", ENV{LIBINPUT_IGNORE_DEVICE}="1", ENV{ID_INPUT_MOUSE}="0", ENV{ID_INPUT_TOUCHPAD}="0"
+    SUBSYSTEM=="input", ATTRS{name}=="DualSense Wireless Controller Touchpad", ENV{LIBINPUT_IGNORE_DEVICE}="1", ENV{ID_INPUT_MOUSE}="0", ENV{ID_INPUT_TOUCHPAD}="0"
+  '';
+
+  environment.systemPackages = with pkgs; [
+    dualsensectl
+    protonup-qt
+    prismlauncher
+    lutris
+    winetricks
+    wineWow64Packages.stagingFull
+    dxvk
+    vkd3d-proton
+    mangohud
+    gamemode
+  ];
+}