feat(triggershell): replace demo scripts with openrgb-hue apply

Drop the triggershell init scaffold scripts and add one script that
drives openrgb-hue apply: full option set as form fields, scene as a
103-entry dropdown, mapping defaulting to per-zone. The scene name
goes through a small wrapper since it's a positional CLI arg and
TriggerShell's passAs:arg can only emit --flag value pairs.

scripts/openrgb-hue-apply.sh

@@ -0,0 +1,4 @@
+#!/usr/bin/env bash
+set -euo pipefail
+
+exec /home/valknar/Projekte/openrgb-hue/.venv/bin/openrgb-hue apply "$SCENE" "$@"