Interface RecorderSnapshot

Optional current-run capture acknowledgement from the recorder contract.

ScopeRecorder type and pattern description (e.g., "Translator (KeyedStore) — per-step token usage").

Small machine-readable facts about the BUNDLE — how it was produced, which projection of the recorder's data it is, what it deliberately left out. Whatever the recorder's toSnapshot() put here, copied through unchanged.

The split with description: description is the sentence a human reads; meta is what an offline consumer BRANCHES on. A recorder with a "full" and a "lean" bundle shape that says so only in its description forces every reader to string-match prose — and a reader that doesn't renders an empty panel instead of saying "this recording carries structure only".

Not interpreted by the engine, so keys are the recorder's to choose; keep the values JSON-safe, since this rides the snapshot out to disk.

Preferred read-time operation — hints the UI about which view to show prominently.