Snapshot payroll row date in payroll history

Objective

• Preserve the original inspection date shown on a payroll history row so historical payroll remains trustworthy for audit and review.
• Prevent a valid payroll from appearing out of range after an inspection is rescheduled.

Background

• A payroll history report for the date range 5/11/2026–5/24/2026 showed an inspection at 159 Tyvola Dr with a displayed inspection date of 5/29/2026.
• That inspection was later confirmed to have been rescheduled on 5/27 from 5/24 to 5/29.
• This makes the historical payroll look incorrect even if the inspection was within range when payroll was originally saved.
• The current behavior suggests payroll history is displaying the inspection's current scheduled date rather than the date associated with the payroll at publish time.

Scope

Backend

• Payroll history filtering in src/routes/payrollData.ts is based on the payroll record's stored pay-period header fields, not each line item's inspection date.
• Payroll line items are created in src/util/functions/payroll/savePayrollHistoryPublished.ts.
• Payroll history enrichment in src/util/functions/payroll/enrichPayrollHistoryLineItems.ts reads live inspection data and can overwrite the displayed inspection datetime for historical rows.
• The requirement is that payroll history preserve the original inspection date that should be shown for the saved payroll row, rather than drifting when the inspection is rescheduled later.
• Decision needed: whether the saved payroll row should render entirely from snapshotted values or use live inspection data with a payroll-time fallback for display fields.

References

• Repro example: payroll history for 5/11/2026–5/24/2026 showing 159 Tyvola Dr with a displayed date of 5/29/2026 after a reschedule from 5/24/2026 on 5/27/2026.
• Key backend entry points: src/routes/payrollData.ts, src/util/functions/payroll/savePayrollHistoryPublished.ts, src/util/functions/payroll/enrichPayrollHistoryLineItems.ts