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/steps/13-reboot.sh

@@ -0,0 +1,11 @@
+#!/bin/bash
+# Step 13: Report completion and reboot
+
+step_13_reboot() {
+  local ip
+  ip="$(hostname -I 2>/dev/null | awk '{print $1}')"
+  report_status "done" "First-boot complete" "13" "reboot" "$ip"
+  log "Device IP: ${ip:-unknown}"
+  log "=== first-boot.sh finished, rebooting ==="
+  reboot
+}