fix: dynamic flake path resolution and replace env-update/sys-update aliases with scripts

core/system/scripts/nomarchy-update

@@ -1,20 +1,23 @@
 #!/usr/bin/env bash
 
 # Nomarchy Update Script
-# 1. Updates the flake inputs in /etc/nixos
+# 1. Updates the flake inputs in the repository
 # 2. Applies system-wide NixOS changes
 # 3. Applies user-level Home Manager changes
 
 set -e
 
-REPO_DIR="/etc/nixos"
-
-if [ ! -d "$REPO_DIR" ]; then
-    echo "Error: $REPO_DIR not found. Are you running on a Nomarchy system?"
+# Detect the repository location
+if [ -f "/etc/nixos/flake.nix" ]; then
+    REPO_DIR="/etc/nixos"
+elif [ -f "/etc/nomarchy/flake.nix" ]; then
+    REPO_DIR="/etc/nomarchy"
+else
+    echo "Error: Nomarchy flake repository not found in /etc/nixos or /etc/nomarchy."
     exit 1
 fi
 
-echo "--- Starting Nomarchy Update ---"
+echo "--- Starting Nomarchy Update from $REPO_DIR ---"
 
 # 1. Update Flake Lock
 echo "Updating flake inputs..."