Changed all project IDs in mock data from numeric type (1, 2, 3, 4) to string type ('1', '2', '3', '4') to match the OffsetProject interface which expects string IDs.
This resolves the Docker build error:
Type 'number' is not assignable to type 'string' at line 312
🤖 Generated with [Claude Code](https://claude.com/claude-code)
Co-Authored-By: Claude <noreply@anthropic.com>
- Create /checkout/success/demo route with mock data
- Hardcoded order details for visual testing
- Same styling as real success page
- Yellow banner indicates demo mode
🤖 Generated with [Claude Code](https://claude.com/claude-code)
Co-Authored-By: Claude <noreply@anthropic.com>
