Redesign Advance Payments to work like loans with tracked balances:
- Add loan_type field to Loan model ('loan' or 'advance')
- Move Advance Payment from DEDUCTIVE to ADDITIVE types (worker receives money)
- Add new Advance Repayment type for deducting from future salary
- Create/edit/delete handlers mirror New Loan behavior for advances
- Loans & Advances tab with type badges and filter buttons
Enhance Payslip Preview modal into "Worker Payment Hub":
- Show outstanding loans & advances with balances in preview
- Inline repayment form per loan (amount pre-filled, note, Deduct button)
- AJAX add_repayment_ajax endpoint creates adjustment without page reload
- Modal auto-refreshes after repayment showing updated net pay
- New refreshPreview() JS function enables re-fetching after AJAX
Other changes:
- Rename History to Work History in navbar
- Advance-specific payslip layout for pure advance payments
- Fix JS noProjectTypes to hide Project field for advance types
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
0257b454af