- GuidanceSessionEnvelope: EXACTLY id, chat_id, route_snapshot, created_at
(SessionClaim field-freeze law — a 5th property means drift)
- GuidanceRouteSnapshot INLINE (D-07: one key, one TTL, ~2h): destination
id/name, distanceM/durationS, polyline6 geometry (05-01 storage format),
startedAtSec resume anchor
- GUIDANCE_SESSION_TTL_SECONDS = 7200 — every Phase 6 write carries it
- guidance:<id> key-scheme doc header; zero runtime behavior (no binding,
no function, no import — GE4 pins it)
Note: header says 'No KV binding' rather than naming the KV type because
the acceptance gate requires that token to appear NOWHERE in the file,
comments included — same law, gate-clean wording.
araharah-executor
d5c2bc0938