- One-time expenses: paid toggle, delete, and inline add form in paycheck columns (wired to POST/DELETE/PATCH /api/one-time-expenses) - Variable spending actuals section with category select, amount, note, date fields; actuals included in remaining balance - Both Phase 3 features fully integrated into PaycheckView Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>