Local application foundation
- WPF desktop workspace with employer, employee, payroll, reports, Agent, CIS, HMRC and Tools areas
- SQLite persistence for employer, employee, pay, payroll history, CIS and audit records
- Database migrations, pre-migration backup, history log, diagnostics, backup and restore
- Finalised payroll runs, YTD updates, payroll history and CSV exports
- Payslip preview, single/batch PDF packs and email-ready manifest
- Agent details, schedules, invoice exports, forms and client-transfer packs
- CIS subcontractors, payments, statements, lists, totals and draft CIS300 output
- Signed prototype activation and owner code generator