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CoreSystemsTests (new): a breaching Husk drains + is consumed; idles at 0; regen fires once per interval in Calm only; no regen mid-Siege; caps at Max. CyclePhaseSystemTests: the soft-loss overrun edge ends the siege, drains the ledger, despawns husks, withholds the goal charge, and resolves once. StorageMathTests: DrainFraction floors per row, drops zeroed rows, clamps. SavePersistenceTests: CoreCurrent round-trips at v4; a pre-END-1 save with no CoreCurrent defaults to 0 (-> born full); the v3->v4 version pin updated. TuningConfig golden pin extended with the 3 Core defaults. See DR-034. Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>