Add ten completed events to the demo data

set-demo now also stages ten past events with door sales, staff cash
counts, check-ins, refunds, donations and feedback. Their cashups run
through the real cashup code after the insert and cover every path:
quick close, full settlements (card fees, deposit fee, shortfall, cash
on hand, an unaccounted amount), close-reopen-close, and pending EFT
money received later or still outstanding. One recent event is left
open with the cash counted for a live demo. Funnel sessions older than
90 days are rolled up into daily totals, as the app does.

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

CHANGELOG.md

@@ -7,6 +7,12 @@ and this project follows [Semantic Versioning](https://semver.org/).
 
 ## [Unreleased]
 
+## [1.27.1] - 2026-10-21
+
+### Added
+
+- `npm run set-demo` also stages ten completed events from the past year, with door sales recorded by staff, staff cash counts, check-ins, refunds, donations and post-event feedback. Their cashups go through every path: a quick close; full closes with card fees, a cash deposit fee, a written-off shortfall, cash kept on hand and an unaccounted amount; a close, reopen and re-close; pending EFT money that was later received and some still outstanding; and one event left open with the cash counted, ready for a live cashup. Funnel stats older than 90 days are stored as daily totals, the way the app rolls them up. See `backend/DEMO_DATA.md`.
+
 ## [1.27.0] - 2026-10-21
 
 Run `npm run prisma:deploy` in the backend when deploying. This release adds a migration.