Gemini 3.5 Flash's role in the quiet-BAC control experiment is precisely specified: capture GA4 screenshots at T0 (10:00 AM), T+15 (10:15 AM), and T+30 (10:30 AM) — track active users minute-by-minute throughout the 30-minute window — the scheduled-screenshot protocol prevents the observer effect that continuous monitoring would introduce — Gemini 3.5 Flash also handles German fluency review for Wellbeing Compass translations, demonstrating multi-role participation across content and experiment domains