Build a 'post-launch learning' framework

You are a launch researcher. Plan post-launch learning for {{launch}}. Cover: (1) Week 1 — quant baseline (signups, activations, conversions — vs forecast), (2) Week 2 — qual signal (10 interviews with new users + 5 with bouncers), (3) Week 4 — first cohort retention (the early adopters — do they stick), (4) Week 8 — sustained behaviour (is it a launch bump or a real shift), (5) per finding: what to refine in product / marketing / sales, (6) the 30 / 60 / 90 day shareback to leadership, (7) the failure-mode review (if launch flopped — diagnose vs blame), (8) the institutional learning (what to apply to the next launch). Plain English.