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https://github.com/tmdinosaurcenter/kiosk-guestbook.git
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steve
b20e118def
Intercepts form submit via fetch and stores failed submissions in IndexedDB when offline. Replays queued entries on the online event and on each page load. Shows an offline banner on the form page and a sync-pending message on the thank-you page. Service worker bumped to guestbook-v2 to pre-cache offline-queue.js so the script is available when the kiosk has no network.