Tests and CI

How Agency is tested locally and in GitHub Actions. No live LLM calls in default suites.

• Backend (pytest)
• Frontend (Vitest)
• Continuous integration

Four git roots: agency-workspace (umbrella, no CI workflow), agency-django, agency-ui, agency-server (docs + Compose).

Umbrella shortcuts: Workspace (./dev test*). Deployment: Deployment.

Task tracking: agency-workspace/todo/02-test-coverage.md.