Retired presentation files to delete from the live portal only AFTER the new
index.php and all current files are uploaded and the staff login/dashboard
smoke test passes:

lib/ui_version.php
views/v2/auth.php
views/v2/dashboard.php
views/v2/finance.php
views/v2/job_orders.php
views/v2/layout.php
views/v2/legacy_bridge.php
views/v2/monitor.php
views/v2/operation.php
views/v2/quotations.php
views/v3/dashboard.php
views/v3/job_orders.php
views/v3/layout.php
views/v3/quotations.php
assets/styles-v2.css
assets/styles-v3.css
assets/v3.js

The empty views/v2 and views/v3 directories may then be removed.

DO NOT delete shared views/*.php, assets/styles.css, app/, storage/, uploads,
backups, configuration, setup keys, logs, or customer documents.
