fix: package theme engine and system scripts and fix env-update scriptability

features/scripts/utils/nomarchy-env-update

@@ -0,0 +1,18 @@
+#!/usr/bin/env bash
+
+# Nomarchy Environment Update Script
+# 1. Runs the pre-flight state migration
+# 2. Applies user-level Home Manager changes
+
+set -e
+
+# Use the pre-flight migration script to ensure the state is synced before evaluation
+if command -v nomarchy-preflight-migration >/dev/null 2>&1; then
+    nomarchy-preflight-migration
+fi
+
+# Apply Home Manager changes from the local flake
+echo "Applying user-level changes..."
+home-manager switch --flake /etc/nixos#default --impure
+
+echo "Environment update complete."

features/scripts/utils/nomarchy-sys-update

@@ -0,0 +1,12 @@
+#!/usr/bin/env bash
+
+# Nomarchy System Update Script
+# 1. Applies system-wide NixOS changes
+
+set -e
+
+# Apply NixOS changes from the local flake
+echo "Applying system-level changes..."
+sudo nixos-rebuild switch --flake /etc/nixos#default --impure
+
+echo "System update complete."