Shape contributed at ctx.featureFlag after a successful evaluation.
enabled: true is encoded in the type — the handler only ever sees this
shape when the flag admitted, so if (!ctx.featureFlag.enabled) is a dead
branch by construction. The contribution shape is the contract this
middleware offers downstream handlers.
Shape contributed at
ctx.featureFlagafter a successful evaluation.enabled: trueis encoded in the type — the handler only ever sees this shape when the flag admitted, soif (!ctx.featureFlag.enabled)is a dead branch by construction. The contribution shape is the contract this middleware offers downstream handlers.