Account setup and release smoke

Production owner onboarding is separate from demo and submission-video docs. Real account setup starts with the selected workspace, then uses Account, Team, Integrations, Gmail, Stripe, Safety, Audit, and Danger Zone surfaces for owner-controlled administration.

Integrations store credential material outside raw database fields, expose readiness and lifecycle controls, and render only statuses, fingerprints, last-four summaries, safe refs, and audit-safe messages. For Gmail, owners connect a mailbox at account level, create/select aliases, then choose the project's default alias from /projects/:id/secrets.

The first production project should upload source documents/templates, configure Project Gmail, draft an outreach artifact, review inline approval cards, and verify proof before any live send. Release smoke requires a full gate: docs generation/verification/link/sample checks, format, compile with warnings as errors, full ExUnit, assets build, and git diff --check before marking the platform ready.