Remove deprecated backend files and documentation, including Docker configurations, environment variables, and various scripts, to streamline the project structure and eliminate unused components.

backend/install/kiosk.sh

@@ -0,0 +1,19 @@
+#!/usr/bin/env bash
+
+# Bildschirm-Blanking verhindern
+xset s off
+xset s noblank
+xset -dpms
+
+# Mauszeiger ausblenden
+unclutter -idle 0.5 -root &
+
+# Chromium-Crash-Dialoge unterdrücken
+sed -i 's/"exited_cleanly":false/"exited_cleanly":true/' \
+    "$HOME/.config/chromium/Default/Preferences" 2>/dev/null || true
+sed -i 's/"exit_type":"Crashed"/"exit_type":"Normal"/' \
+    "$HOME/.config/chromium/Default/Preferences" 2>/dev/null || true
+
+# Browser starten
+chromium-browser --kiosk --noerrdialogs --disable-infobars \
+                 --window-position=0,0 --app=http://localhost:5000/ &