FINERACT-2455: Working Capital - Delinquency Effective Date

[alberto-art3ch]

Description

Expose delinquencyEffectiveStartDate on the Working Capital loan retrieve response and in the WC loan business event payload. When delinquency grace days are configured (> 0) and the earliest delinquent period is the first one, the field returns delinquencyStartDate + delinquencyGraceDays — the date the borrower's cool off period ends and the delinquency window effectively begins. It is null for any later period, since only the first period is shifted by the grace days.

FINERACT-2455

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