Rename every remaining voxip name to daynivo, with a one-time migration

Services (daynivo-kiosk-*, daynivo-network-guard, daynivo-boot-import),
programs in /usr/lib/daynivo-kiosk, folders /etc, /var/lib, /var/log and
/var/cache daynivo-kiosk*, the system user daynivo, DAYNIVO_* settings,
the plymouth theme, network profiles daynivo-eth0/wlan0, the image stage
and its first user daynivoadmin.

install.sh moves a kiosk installed up to 1.2.x over once: old services
stopped and removed, folders moved (configuration, password, browser
profile, logs) with symlinks under the old names, the voxip user renamed
with the same uid, network profiles renamed unless a change awaits
confirmation, and old leftovers removed. Tested by upgrading a configured
1.2.0 installation in a container, and running the install a second time.

Old names keep working where people type or place them: voxip-config.json,
voxip-authorized_keys, voxip-network-reset, voxip-kiosk-ctl, and
VOXIP_DEFAULT_URL / VOXIP_DEVICE_NAME for image builds.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

image/stage-daynivo/00-daynivo/00-run.sh

@@ -0,0 +1,23 @@
+#!/bin/bash -e
+# Install Daynivo Kiosk OS into the image with the same install.sh that is
+# used on existing Raspberry Pi OS installations.
+
+# shellcheck disable=SC1091
+source files/build.env
+
+rm -rf "${ROOTFS_DIR}/usr/src/daynivo-kiosk"
+install -d "${ROOTFS_DIR}/usr/src/daynivo-kiosk"
+cp -a files/daynivo-kiosk/. "${ROOTFS_DIR}/usr/src/daynivo-kiosk/"
+
+on_chroot << EOF_CHROOT
+/usr/src/daynivo-kiosk/install.sh --image --url $(printf %q "${DAYNIVO_DEFAULT_URL}") --name $(printf %q "${DAYNIVO_DEVICE_NAME}")
+install -m 0644 /usr/src/daynivo-kiosk/BUILD-INFO /usr/share/daynivo-kiosk/BUILD-INFO
+# No usable default password: unlocked only by Raspberry Pi Imager credentials.
+passwd -l ${FIRST_USER_NAME}
+systemctl disable ssh.service 2>/dev/null || true
+apt-get clean
+EOF_CHROOT
+
+# Instructions next to config.txt for whoever opens the boot partition.
+install -m 0644 files/daynivo-kiosk/image/boot-README.txt "${ROOTFS_DIR}/boot/firmware/DAYNIVO-LEESMIJ.txt"
+install -m 0644 files/daynivo-kiosk/image/daynivo-config.example.json "${ROOTFS_DIR}/boot/firmware/daynivo-config.example.json"