Mission-control: Resend integration: verified domain, single send + scheduled send

[mattdani21]

Task (from GOAL.md)

Resend integration: verified domain, single send + scheduled send

Task index: 10
Milestone: M3 — Channel integrations

Acceptance criteria

• Task intent implemented per GOAL.md milestone definition of done: a scheduled campaign email sends on time and delivery events are recorded.
• Test command from STATE.md passes: NONE (no test framework yet — task includes setting one up)
• No secrets/.env touched; no force-push; no direct pushes to main
• Branch orch/<issue>-<slug> with a PR titled with the task

Confirmed goal

Launch Mission Control as the live marketing-operations hub for Empyrean (target: launch this week)

Gate

NONE (no test framework yet — task includes setting one up)