Factory cycle 16 update

cycle 16 dispatch for venture-factory plan: Plan: ship a minimal landing page and one outreach email. build: Build: drafted landing-page copy and an email template (mocked). ship: Ship: published landing page (mocked) and queued one email (mocked). measure: Measure: 12 visits, 1 signup, 0 unsubscribes (mocked). learn: Learn: signal is weak but non-zero; supports the engagement hypothesis with low confidence.