4eee7c89b2
Worldtree shipped its half of the union-recall fix: #297 (client-side per-scope-value union recall) + #298/#299 (adopt the bifrost v0.6 scope_any/scope_all wire, v0.35.16). It now emits scope_any on the recall path, pairing with our v0.17.6 provider — cold cross-session recall is closed end-to-end (pending a live re-smoke against a v0.35.16 instance). Re-vendored conversation-api-spec.md + conversation_api.contract.md; 285-commit catch-up (v0.29.0 -> v0.35.16). Diff-reviewed: no client-facing breaking changes for our consumer. - #211 agent-slug rename (saga->echo, actor->mask) — slugs only, we pass --agent - #245 end_user_id persistence + memory-scope resolver (additive) - #187/#188/#219 Tier-3 define/PATCH policy (additive); error codes stable - bifrost binding field + ephemeral_does_not_accept_bifrost 422 now documented (#17 surface) - docs: SPEC-PIN.md pin table + history; bifrost-self-test recall status; persistent-memory No package version bump (docs/pin-only, no ratatoskr code change).