-- Site master switch for the ANPR subscriber-entry bridge (anpr-entry.ts). Additive
-- ALTER ADD COLUMN — backward-compatible. Default 1 (ON) so existing installs keep the
-- now-live auto-open-for-subscriber-plates behaviour after upgrade. The toggle gates ONLY
-- the barrier-driving bridge; advisory snapshot-ANPR + lane busy/free are unaffected.
ALTER TABLE `site_config` ADD `anpr_entry_enabled` integer DEFAULT 1 NOT NULL;