chore: drop makima/Typora/xournalpp; gate fcitx5/voxtype/opencode behind options

Tier A removals — small, half-wired modules nobody had asked for:

- makima (Copilot-key remapper): drop core/system/makima.nix, the
  features/apps/makima/ keyboard.toml, the nomarchy-restart-makima script,
  the `nomarchy.system.features.makima` option, the state-file binding,
  the import in core/system/default.nix, and the "Key Remapping" entry
  in nomarchy-menu. ~50 LoC + a service nobody asked for.
- Typora theme dir (core/home/config/Typora/) — Typora is a paid tool
  Nomarchy doesn't even ship; the SUPER+SHIFT+W keybinding pointed at a
  binary that wasn't on PATH.
- xournalpp settings (core/home/config/xournalpp/) — referenced
  /usr/share paths that don't exist on NixOS.
- core/home/config/environment.d/fcitx.conf — manual env vars are
  redundant once fcitx5 routes through NixOS's i18n.inputMethod.

Optionalization — three half-wired features now sit behind explicit
toggles, all default off (except keyring which keeps its existing
default-on):

- nomarchy.system.inputMethod.enable: new core/system/input-method.nix
  uses NixOS's i18n.inputMethod with fcitx5 + mozc/chinese/table addons.
  Drops the Hyprland exec-once line — i18n.inputMethod handles autostart.
- nomarchy.system.voxtype.enable: marker option for users who install
  voxtype out-of-band (it's not in nixpkgs). Today it just documents
  intent; the existing keybinding + waybar widget no-op gracefully.
- nomarchy.apps.opencode.enable: gates the existing
  features/apps/opencode/default.nix xdg.configFile so the opencode
  config only deploys when the user opts in.

Installer:
- system.nix and home.nix templates now surface the new toggles in their
  "Optional Nomarchy modules" comment blocks.

Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>

core/system/default.nix

@@ -17,12 +17,12 @@
     ./network.nix
     ./impermanence.nix
     ./browser.nix
-    ./makima.nix
     # Tier 1 system features (all opt-in via nomarchy.system.*).
     ./snapper.nix
     ./hibernate.nix
     ./containers.nix
     ./pam.nix
+    ./input-method.nix
     ../../themes/engine/plymouth.nix
     ../../themes/engine/sddm.nix
   ];

core/system/input-method.nix

@@ -0,0 +1,22 @@
+{ config, lib, pkgs, ... }:
+
+let
+  cfg = config.nomarchy.system.inputMethod;
+in
+{
+  config = lib.mkIf cfg.enable {
+    # NixOS's i18n.inputMethod handles env vars (GTK_IM_MODULE, QT_IM_MODULE,
+    # XMODIFIERS, SDL_IM_MODULE) and the fcitx5-daemon autostart for us, so
+    # we don't ship a manual environment.d file or Hyprland exec-once.
+    i18n.inputMethod = {
+      enable = true;
+      type = "fcitx5";
+      fcitx5.addons = with pkgs; [
+        fcitx5-mozc          # Japanese
+        fcitx5-chinese-addons # Chinese (pinyin/shuangpin)
+        fcitx5-table-extra    # Hanyu/Cangjie/etc.
+        fcitx5-gtk            # GTK4/3 client
+      ];
+    };
+  };
+}

core/system/makima.nix

@@ -1,25 +0,0 @@
-{ config, pkgs, lib, ... }:
-
-let
-  cfg = config.nomarchy.system.features.makima;
-in
-{
-  config = lib.mkIf cfg {
-    # If the user has makima-bin available in their overlays (as they originally used a custom package),
-    # this will install it. Otherwise, it will fail evaluation if not available in nixpkgs.
-    environment.systemPackages = [ pkgs.makima-bin ];
-
-    environment.etc."makima/AT Translated Set 2 keyboard.toml".source = ../../features/apps/makima + "/AT Translated Set 2 keyboard.toml";
-
-    systemd.services.makima = {
-      description = "Makima key remapping service";
-      wantedBy = [ "multi-user.target" ];
-      serviceConfig = {
-        User = config.services.displayManager.autoLogin.user;
-        Environment = "MAKIMA_CONFIG=/etc/makima";
-        ExecStart = "${pkgs.makima-bin}/bin/makima";
-        Restart = "on-failure";
-      };
-    };
-  };
-}

core/system/options.nix

@@ -40,11 +40,6 @@
         default = false;
         description = "Whether to enable hybrid GPU support (supergfxd).";
       };
-      makima = lib.mkOption {
-        type = lib.types.bool;
-        default = false;
-        description = "Whether to enable makima key remapper.";
-      };
     };
     theme = lib.mkOption {
       type = lib.types.str;
@@ -102,5 +97,22 @@
         '';
       };
     };
+
+    inputMethod = {
+      enable = lib.mkEnableOption ''
+        fcitx5 input method (CJK / IME). Wires NixOS's i18n.inputMethod and
+        autostarts fcitx5-daemon. Adds a small footprint when enabled, so
+        most users want this off.
+      '';
+    };
+
+    voxtype = {
+      enable = lib.mkEnableOption ''
+        voxtype voice-typing integration. NOTE: voxtype is not packaged in
+        nixpkgs — when enabled, install voxtype yourself (e.g. via
+        `home.packages = [ (pkgs.callPackage … {}) ]`). With this off the
+        SUPER+CTRL+X keybinding and waybar widget are no-ops.
+      '';
+    };
   };
 }

core/system/scripts/nomarchy-restart-makima

@@ -1,5 +0,0 @@
-#!/bin/bash
-
-# Restart makima - key remapping service for remapping Copilot key to Nomarchy Menu
-
-sudo systemctl restart makima

core/system/state.nix

@@ -14,7 +14,6 @@ in
       fingerprint = systemState.features.fingerprint or false;
       fido2 = systemState.features.fido2 or false;
       hybridGPU = systemState.features.hybridGPU or false;
-      makima = systemState.features.makima or false;
     };
     theme = systemState.theme or "nord";
   };