[Hylfrd]

Summary

• Add the domain-only FeatureLifecycle coordinator and immutable registration/state/result contracts.
• Preserve ordered registration, explicit macro/world identities, generation fencing, nested FeatureSuspension ownership, failsafe suppression, and callback-failure containment.
• Keep client wiring, shared configuration, and infrastructure out of this prep slice.

Upstream anchors

• Fixed upstream eacb323f: src/main/java/com/jelly/farmhelperv2/feature/FeatureManager.java lines 25-165 and IFeature.java.
• Current integration contracts: MacroLifecycle, FeatureSuspension, and FailsafeArbitrator.

Verification

• Focused lifecycle test passed.
• Full test suite passed.
• Full build passed, including dependency provenance verification.

Composition

• Base: bc069ea1a159bc439440dee78ec45530cf9b5713 / tree 2b6e9b8564ec99bddefe1f0a5784e7851013497b
• Prepared commit: 450e7d21a4c8ee837d7492a481ad8d33a4928a26
• Product prep only. Composition remains held by D003_MERGE_HOLD; do not merge as part of this task.