Misaka 44c84983b4 refactor(ingest): unique key (site,handover_no,waybill_no) + business_date purge + shortfall-sum undelivered ...

- schema: expected_record unique key (site,waybill_no) -> (site,handover_no,waybill_no),
  so the same waybill can belong to multiple handover batches without being overwritten
- store: dedup by (handover_no,waybill_no) instead of waybill_no alone; UPSERT conflict
  key matches the new unique key; handover_no no longer force-overwritten on conflict
- store: add purge_expected, called on force re-download; deletes by business_date
  (download day, same source as task date) rather than batch_out_date, which is offset
  from the download day for sites like yunda where download day != outbound day
- store/runtime: thread force + target_date through ingest_task / _persist_to_db /
  _site_undelivered_handler so force re-download purges then re-ingests in one tx
- db_compare: undelivered_pieces now sums per-waybill shortfall (total - arrived)
  instead of expected_total - arrived_total, unaffected by unrelated/extra scans

2026-08-09 20:37:29 +08:00

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