Mission-control: Server-side Anthropic proxy route (never called from the browser) with streaming

[mattdani21]

Task (from GOAL.md)

Server-side Anthropic proxy route (never called from the browser) with streaming and prompt caching

Task index: 8
Milestone: M2 — Auth, campaigns and AI assist

Acceptance criteria

• Task intent implemented per GOAL.md milestone definition of done: signup → create campaign → AI draft works locally; usage is recorded per workspace.
• 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)