feat: add comprehensive demo application with custom payment UI

- Custom test payment UI with modern Tailwind CSS design
- Payment method selection (iDEAL, Credit Card, PayPal, Apple Pay, Bank Transfer)
- Test scenario selection (6 scenarios: success, delayed, cancelled, declined, expired, pending)
- Real-time payment status polling
- Success and failure result pages with payment details
- Interactive demo homepage at root path
- Sample data seeding (customers, invoices)
- Customers collection with auto-sync to invoices
- Comprehensive documentation (README.md, DEMO_GUIDE.md)
- Proper cursor styles for all interactive elements

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude <noreply@anthropic.com>
This commit is contained in:
2025-11-08 14:03:28 +01:00
parent fa22900db5
commit 3508418698
18 changed files with 2505 additions and 459 deletions

888
pnpm-lock.yaml generated

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