Enable selective payment of work logs and adjustments instead of
all-or-nothing. The preview modal now shows checkboxes on every item
(all checked by default) with dynamic net pay recalculation.
Teams can be configured with a pay frequency (weekly/fortnightly/monthly)
and anchor start date. When set, a "Split at Pay Date" button appears
that auto-unchecks items outside the current pay period.
Key changes:
- Team model: add pay_frequency and pay_start_date fields
- preview_payslip: return IDs, dates, and pay period info in JSON
- process_payment: accept optional selected_log_ids/selected_adj_ids
- Preview modal JS: checkboxes, recalcNetPay(), Split button, Pay Selected
- Backward compatible: existing Pay button still processes everything
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>