refactor(home): consolidate host home modules under home/hosts

home/linux/hosts/12kingdoms-shoukei.nix

@@ -1,14 +0,0 @@
-{ config, ... }:
-let
-  hostName = "shoukei"; # Define your hostname.
-  mkSymlink = config.lib.file.mkOutOfStoreSymlink;
-in
-{
-  programs.ssh.matchBlocks."github.com".identityFile =
-    "${config.home.homeDirectory}/.ssh/${hostName}";
-
-  modules.desktop.nvidia.enable = false;
-
-  xdg.configFile."niri/niri-hardware.kdl".source =
-    mkSymlink "${config.home.homeDirectory}/nix-config/hosts/12kingdoms-shoukei/niri-hardware.kdl";
-}

home/linux/hosts/idols-ai.nix

@@ -1,12 +0,0 @@
-{ config, ... }:
-let
-  mkSymlink = config.lib.file.mkOutOfStoreSymlink;
-in
-{
-  programs.ssh.matchBlocks."github.com".identityFile = "${config.home.homeDirectory}/.ssh/idols-ai";
-
-  modules.desktop.nvidia.enable = true;
-
-  xdg.configFile."niri/niri-hardware.kdl".source =
-    mkSymlink "${config.home.homeDirectory}/nix-config/hosts/idols-ai/niri-hardware.kdl";
-}

home/linux/hosts/idols-aquamarine.nix

@@ -1,21 +0,0 @@
-{
-  programs.gh.enable = true;
-  programs.git.enable = true;
-
-  programs.zellij.enable = true;
-  programs.bash.enable = true;
-  programs.nushell.enable = true;
-
-  programs.starship = {
-    enable = true;
-    enableBashIntegration = true;
-    enableNushellIntegration = true;
-  };
-  programs.neovim = {
-    enable = true;
-    viAlias = true;
-    vimAlias = true;
-  };
-
-  home.stateVersion = "25.11";
-}

home/linux/hosts/idols-kana.nix

@@ -1,3 +0,0 @@
-{
-  imports = [ ./idols-aquamarine.nix ];
-}

home/linux/hosts/idols-ruby.nix

@@ -1,3 +0,0 @@
-{
-  imports = [ ./idols-aquamarine.nix ];
-}