refactor: rename homebrew.nix to apps.nix (add nix GUI pkgs, cleanup=none)

hosts/poppy/apps.nix

@@ -0,0 +1,45 @@
+{ pkgs, ... }:
+{
+  # All poppy apps (brew casks + nix GUI packages)
+  # импортируется только в hosts/poppy/default.nix
+
+  # Brew casks (приложения которых нет в nixpkgs)
+  homebrew = {
+    enable = true;
+    onActivation.cleanup = "none";  # "none" для безопасности, "zap" после полного аудита
+    taps = [];
+
+    brews = [
+      "kew"
+    ];
+
+    casks = [
+      "google-chrome"
+      "google-drive"
+      "marta"
+      "vscodium"
+      "github"
+      "docker-desktop"
+      "ollama-app"
+      "obsidian"
+      "anki"
+      "calibre"
+      "telegram"
+      "maccy"
+      "mos"
+      "caffeine"
+      "lunacy"
+      "skim"
+      "markedit"
+      "amneziavpn"
+      "element"
+      "prismlauncher"
+    ];
+  };
+
+  # Nix GUI пакеты (нет в brew)
+  home.packages = with pkgs; [
+    aseprite     # пиксельный редактор
+    pureref      # reference board
+  ];
+}