mb3r-stack v1.1.0 integration bundle

mb3r-stack v1.1.0 integration bundle

v1.1.0 advances the verified bundle to Bering v1.0.0 plus Sheaft v1.2.0. It exposes confidence-certified failure-tolerance analysis without changing the Bering artifact contract or silently enabling an environment-specific blocking gate.

Component pins

• Bering v1.0.0, model/snapshot contracts 1.3.0
• Sheaft v1.2.0, multi-arch OCI image pinned by digest
• stack chart and asset pack 1.1.0

Added

• opt-in failure-tolerance values overlay for independent replica-failure and exact failed-slot sweeps
• Wilson confidence-certified minimum-boundary gate for the synthetic checkout operation
• a dedicated end-to-end check that runs released Bering 1.0.0 and Sheaft 1.2.0 binaries and verifies sweep and boundary results
• validation that chart image pins match the stack manifest

Upgrade behavior

The default analysis.yaml remains schema 1.0, warn-only, and backward-compatible. Operators opt into schema 1.2 by layering examples/profiles/failure-tolerance/values.yaml and must replace its endpoint id, SLO, sweep grid, trial count, and required margin with environment-owned values.

Boundaries

This bundle verifies modelled fail-stop tolerance. It does not claim to predict capacity saturation, traffic redistribution, queues, retry-generated load, or overload cascades. Those capabilities require future additive Bering inputs plus load/chaos validation.