chendeben/MailSend @ 094816a1942b5169a89981d2a170d5b4d2f8ea33

chendeben 2d0d2118bd docs: pin webhook payload transaction and attempt counting		1 miesiąc temu
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2026-07-09-mailhub-ui-redesign-design.md	037217ed2a docs: clarify UI redesign dual entries and dashboard metrics	1 miesiąc temu
2026-07-09-mailhub-webhooks-design.md	2d0d2118bd docs: pin webhook payload transaction and attempt counting	1 miesiąc temu