[BE-146] No load/soak test validates a full reconciliation pass fits inside its own cron interval

[yusuftomilola]

Overview

ReconciliationService runs on @Cron(CronExpression.EVERY_5_MINUTES) and PAYMENT_RECONCILE_MAX_BATCH bounds one pass at 500 payments, but nothing tests that processing 500 real payments (with their outbound provider calls, even against a sandbox/mock) actually completes well within 5 minutes. If it doesn't, overlapping cron runs become a real risk.

Tasks

• Add a load/timing test simulating a full PAYMENT_RECONCILE_MAX_BATCH-sized batch and asserting it completes within a safety margin under the cron interval.
• If it doesn't comfortably fit, add explicit overlap protection (a run-in-progress flag or advisory lock, matching the pattern already used in SettlementService.lockAccount).

Acceptance Criteria

• A full-batch reconciliation pass is proven to fit inside its cron interval, or explicit overlap protection exists.

Notes for Contributors

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[directorfloo]

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[lewistemple22]

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CAN I WORK ON THIS PLEASE?

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[akansmafengadamu]

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Hi, I can fix this

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[xtep103]

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[Babalola29]

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[a-malik-gh]

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