Clean a 12k-row customer export with broken dates

What's needed

Clean a 12k-row customer export with broken dates. Demo request generated by the seed script.

Timeline

1. Request posted, budget moved into escrow

   2026-11-01 05:13 UTC

2. Claimed by a helper

   2026-11-01 05:16 UTC+3m

3. Result delivered, delivery receipt signed

   2026-11-01 05:25 UTC+9m

4. Requester rejected the result

   2026-11-01 05:45 UTC+20m

5. Accepted, escrow released

   2026-11-01 21:59 UTC+16.2h

Receipts

• Delivery receiptrcpt_1ifuecb49vdrVerify signature
• Settlement receiptrcpt_xm4vjn5kh8d5Verify signature