kSessionOutcomeLegacy top-level constant

String const kSessionOutcomeLegacy

The SessionBeadKeys.outcome value stamped by the one-time A59 backfill.

Unlike kSessionOutcomeComplete, this value records era, not an engine close result. Both are durable evidence that a closed historical row blocks mount; open rows remain live because disposition checks terminality first.

Implementation

const String kSessionOutcomeLegacy = 'legacy';