DecayManager

Storage-agnostic DecaySweeper over a PropositionRepository, plus an optional hook to materialise decayed confidence where a backend can cache it.

Two responsibilities, kept as separate callable operations (no forced run()):

• Lifecycle (sweep / sweepAll) — applies com.embabel.dice.spi.StatusTransitionPolicy status transitions (ACTIVE→STALE, STALE→ACTIVE, optional pruning) through the repository. Works for any backend; pinned propositions are policy-exempt.

• Materialisation (materialize / materializeAll) — refreshes a cached effectiveConfidence so confidence-ranked reads push into the store. The only storage-specific operation, so it's the abstract seam: a no-op in com.embabel.dice.proposition.store.InMemoryDecayManager (nothing to cache), a batch write-back in the graph impl.

tick is the convenience runner a scheduler calls (materialise, then lifecycle); the granular operations remain independently callable for different cadences.

dice ships no scheduler — wiring @Scheduled/cron is the consuming application's job.

Inheritors