Remove deprecated one-shot scripts and update first-boot configuration for improved provisioning</message>

<message>Delete obsolete one-shot scripts for setting screen rotation and wallpaper, as well as related Python and shell scripts. Update the first-boot configuration to streamline the provisioning process by removing references to these scripts. This cleanup enhances maintainability and focuses on the essential steps required for the first boot experience, ensuring a more efficient setup for users.

emmc-provisioning/cloud-init/fileserver/start-chromium.sh

@@ -0,0 +1,43 @@
+#!/bin/bash
+# Revision: 2
+# Start Chromium in app mode. Optional env vars:
+#   CHROMIUM_APP_URL  - URL to open (default: http://127.0.0.1:8080)
+#   CHROMIUM_MODE     - "kiosk" (default, fills whole screen) or "fullscreen"
+#
+# Touch long-press → right-click: In Chromium on Wayland, long-press often does *not*
+# open the context menu (Chromium handles touch itself). Elsewhere (e.g. desktop) it may
+# work. For long-press right-click *inside* Chromium, use evdev-right-click-emulation
+# at the input layer so all apps (including Chromium) receive real right-click events:
+#   https://github.com/PeterCxy/evdev-right-click-emulation
+#
+# Disable keyring prompts
+export GNOME_KEYRING_CONTROL=""
+
+# Wayland + labwc compositor.
+export GDK_BACKEND=wayland
+# Wait for compositor
+for i in {1..60}; do
+  if [ -S "${XDG_RUNTIME_DIR:-/run/user/$(id -u)}/$WAYLAND_DISPLAY" ]; then
+    pgrep -x labwc >/dev/null 2>&1 && break
+  fi
+  sleep 0.5
+done
+# URL to open in Chromium (app mode)
+#CHROMIUM_APP_URL="${CHROMIUM_APP_URL:-http://127.0.0.1:8080}"
+CHROMIUM_APP_URL="${CHROMIUM_APP_URL:-https://tototheo.com}"
+
+# Mode: "kiosk" (fills whole screen, no taskbar gap) or "fullscreen"
+CHROMIUM_MODE="${CHROMIUM_MODE:-kiosk}"
+
+CHROMIUM_OPTS="--noerrdialogs --disable-infobars --disable-session-crashed-bubble --disable-restore-session-state --no-first-run --password-store=basic --use-mock-keychain --ozone-platform=wayland --enable-features=WaylandWindowDecorations --disable-features=UseChromeOSDirectVideoDecoder --app=${CHROMIUM_APP_URL}"
+
+case "${CHROMIUM_MODE}" in
+  kiosk)   CHROMIUM_OPTS="--kiosk ${CHROMIUM_OPTS}" ;;
+  *)       CHROMIUM_OPTS="--start-fullscreen ${CHROMIUM_OPTS}" ;;
+esac
+
+sleep 3
+/usr/bin/chromium $CHROMIUM_OPTS &
+
+# Keep script running
+wait