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

core/system/scripts/nomarchy-toggle-hybrid-gpu

@@ -10,7 +10,7 @@ if [[ $(sudo jq -r '.features.hybridGPU // false' "$STATE_FILE") != "true" ]]; t
     if gum confirm "Hybrid GPU support is not enabled. Enable it now? (Requires sys-update)"; then
         sudo jq '.features.hybridGPU = true' "$STATE_FILE" > /tmp/state.json && sudo mv /tmp/state.json "$STATE_FILE"
         echo "Hybrid GPU support enabled in configuration. Applying changes..."
-        sudo sys-update
+        sudo nomarchy-sys-update
         echo "Please run this command again after the update."
         exit 0
     fi