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>

src/daynivo_kiosk/web/__init__.py

@@ -48,7 +48,7 @@ def create_app(paths: Paths | None = None, *, helper: Any = None, cdp: Any = Non
     app = Flask(__name__)
     app.secret_key = _secret_key(paths)
     app.config.update(
-        SESSION_COOKIE_NAME="voxip_session",
+        SESSION_COOKIE_NAME="daynivo_session",
         SESSION_COOKIE_HTTPONLY=True,
         SESSION_COOKIE_SAMESITE="Strict",
         SESSION_COOKIE_SECURE=config["admin_https"],
@@ -58,7 +58,7 @@ def create_app(paths: Paths | None = None, *, helper: Any = None, cdp: Any = Non
     )
     credentials = CredentialStore(paths.admin_file, paths.setup_code_file)
     credentials.ensure_setup_code()
-    app.extensions["voxip"] = Services(
+    app.extensions["daynivo"] = Services(
         paths=paths,
         credentials=credentials,
         throttle=LoginThrottle(),