/**
 * Pruning Mask Tests — Core Package
 *
 * Direct unit tests for the pruning mask module:
 * - buildMaskedPrincipleSet() — pure LWW (Last Write Wins) function
 * - getCachedMaskedPrincipleSet() — TTL-cached wrapper
 * - clearPruningMaskCache() — cache invalidation
 *
 * Tests verify:
 * - Empty/null input → empty set
 * - Single review → correct masking
 * - Multiple reviews for same principle → LWW semantics
 * - Corrupt records → skipped silently
 * - Archive-candidate → masked; keep/defer → not masked
 * - TTL cache: returns cached value within TTL, re-reads after expiry
 * - Cache keyed by workspaceDir
 * - clearPruningMaskCache resets cache state
 *
 * ERR checklist:
 * - ERR-002 / EP-03: corrupt records skipped (fail-safe)
 * - ERR-007 / EP-02: single source for LWW decision
 * - EP-07: cache keyed by workspaceDir prevents cross-workspace leakage
 */
export {};
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