Add four skills for Tempo/KSeF timesheet and invoice workflows:
- check-my-timesheet: show/log the current user's Tempo time entries
- timesheet-checker: audit timesheet completion across all reporters
- invoice-checker: pull KSeF invoices, check contractors + MF white list
- invoice-prep: summarize Tempo hours per Jira project for invoicing
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
