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Task #5 building blocks, each a pure + unit-tested module: - goodInterop.ts: GOOD (Genshin Optimizer / Inventory Kamera / Akasha) import and export for scanned StoredArtifactRecords - slot/stat/set key maps both ways, substat string <-> { key, value }, main-value reconstruction on import (ADR-003). Export is lossless; import is best-effort (GOOD lacks piece names). - artifactMerge.ts: rescan-merge (ADR-006 follow-up). Level-independent identity (set + slot + main + substat NAME set) collapses leveled re-scan duplicates, keeping the higher-level/stronger record and summing timesSeen. Conservative: differing substat lineups never merge. - dataPackageStatus.ts: warns when the genshin-db package is older than ~45 days (a patch cycle) so new sets/characters aren't silently missed; surfaced in the Scanner Diagnose data-package line. Adds dataGeneratedAt to genshinData. - lockDetection.ts: EXPERIMENTAL read-only lock-status heuristic (gold-pixel ratio in a top-right icon crop). Pure + tested but not wired into capture; crop position and threshold need calibration against a reference 16:9 screenshot. 120 tests + build green. Remaining wiring (needs UI / live calibration): GOOD import/export buttons and live lock detection. Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>