v0.3.8

Added

• Accumulator data element type (#33). Modes: count, sum, average, max, min, collect_distinct. Persistence scopes: session and user (UserDefaults-backed). Filter-gated increment/decrement.
• reset-accumulators action type — zero one-or-more named accumulators and re-publish shared state
• upload-airlock-extension Claude Code skill for automating Adobe Launch uploads via @adobe/reactor-uploader

Changed

• Renamed: "Session Accumulator" data element type renamed to Accumulator. The original name implied session-only persistence; the type actually supports both session- and user-scoped persistence, so the more general name fits better.

Fixed

• Multiple accumulator engine bugs flagged during review (off-by-one in moving average, decrement ordering, persistence key collisions)