Deploy multi-armed bandits safely

You have 3 variants, a churn guardrail, and delayed conversions. a) Design a Thompson Sampling bandit (specify likelihoods), and explain how you’ll handle delays (e.g., optimistic vs. debiased estimators) and non‑stationarity (e.g., discounting). b) Set traffic floors and fairness constraints. c) Define stopping and rollback policies when a guardrail is breached. d) Compare expected regret and business impact versus a fixed‑horizon A/B under seasonality.