Evaluation context for deterministic rollout bucketing.
A context is a plain map. The bucketing key is taken from the first present
of :id, "id", :user_id, or "user_id". An empty or missing identifier
buckets every caller to the same "anonymous" slot — supply a stable id to
get per-caller bucketing.
Summary
Functions
Compute the rollout bucket (0..99) for the given flag name and context.