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Add Deterministic Ramp-Up

Add one rollout rule that is stable for the same identity input.

Prerequisites: You have completed Evaluate in App Code.

Ramp-up assignment is deterministic and exposed through stable bucket APIs.

import io.amichne.konditional.api.evaluate
import io.amichne.konditional.context.AppLocale
import io.amichne.konditional.context.Context
import io.amichne.konditional.context.Platform
import io.amichne.konditional.context.Version
import io.amichne.konditional.core.Namespace
import io.amichne.konditional.core.id.StableId

object RolloutFeatures : Namespace("rollout") {
  val newCheckout by boolean<Context>(default = false) {
    rule(true) {
      rampUp { 25 }
    }
  }
}

val sameUser = Context(AppLocale.UNITED_STATES, Platform.IOS, Version.of(2, 1, 0), StableId.of("user-123"))
val first = RolloutFeatures.newCheckout.evaluate(sameUser)
val second = RolloutFeatures.newCheckout.evaluate(sameUser)
check(first == second)

Verify​

Use RampUpBucketing.bucket(stableId, featureKey, salt) when you need explicit bucket introspection for debugging and audit traces.

Expected Outcome​

After this step, the same stable identity is consistently included or excluded across repeated evaluations.

Next Steps​

Claim Coverage​

Claim IDStatement
CLM-PR01-10ARamp-up assignment is deterministic and exposed through stable bucket APIs.