fix(infra): MTA/Redis/Resend box setup — fix env template + add runbook #4056

Originally written by @ccantynz-alt on GitHub.
Imported from https://github.com/ccantynz-alt/AlecRae.com/pull/75

Summary

• .env.production: Fixed MTA_QUEUE_NAME=alecrae:outbound → alecrae-outbound (colon crashes BullMQ); swapped relay default from SES to Resend SMTP (matches current box config)
• morning-setup.md: Fixed box path (/opt/alecrae not /root/AlecRae.com), added www CNAME Vercel removal step, Resend DNS verification note, MTA worker section, Redis queue inspection commands
• docs/infra/mta-box-setup.md: New runbook — Redis install, alecrae-mta systemd service file, outbound test send, BullMQ queue inspection, Resend domain verification checklist
• scripts/box-deploy.sh: Auto-restarts alecrae-mta on deploy if the service exists

Why this matters

Without the MTA worker running, emails compose and queue fine but are never delivered — they sit in BullMQ forever. The Resend relay env vars Craig added to the box won't be used until the MTA process is running.

Test plan

• On box: apt-get install redis-server && systemctl start redis-server && redis-cli ping → PONG
• Create /etc/systemd/system/alecrae-mta.service from mta-box-setup.md
• systemctl start alecrae-mta && systemctl status alecrae-mta → active
• Send test email via POST /v1/messages/send curl command in mta-box-setup.md
• Check journalctl -u alecrae-mta shows job picked up and relayed via Resend
• Email arrives in Gmail inbox

https://claude.ai/code/session_017mhAkS4qhMjcvVnyFi61xp

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