chore(deps): consume alkcall 0.3.1 — list-peers announced-op discovery gate

The alkcall 0.3.1 fix (fd21230, alkhttp review 006 UP-03) lands
PeerCompositeEnv::peer_operations, so services/list-peers now lists
peer-announced ops. Version pin stays 0.3 (semver-compatible); the
lockfile bump carries no source change.

- Extend op_register_served_per_session_and_collision_is_already_exists
  with the discovery assertion that originally surfaced UP-03: after
  the announce resolves, services/list-peers attributes consumer/exec
  to the alice peer entry (fails against 0.3.0, verified by the
  original draft).
- Review 006 UP-03 entry records the 0.3.1 landing (alkcall ADR-030).

Verification: cargo test 454 passed / 0 failed; cargo test
--all-features 582 / 0; clippy (default + all-features, all-targets,
-D warnings) clean; fmt clean; doc clean.

docs/reviews/006-alkcall-0.3.0-consequence-review.md

@@ -2,10 +2,12 @@
 
 ## Status
 
-Unit 2 + Unit 3 remediated and verified (`030c5ef`). Remaining: Unit 4
-(docs reconciliation). UP-02 decided (recorded below). One new
-upstream gap surfaced during the gates (UP-03 — alkcall-side). See
-Remediation log.
+All units landed: Unit 2 + Unit 3 remediated and verified (`030c5ef`);
+Unit 4 (docs reconciliation) landed with the 0.3.1 consumption
+(`Cargo.lock` bump + the `services/list-peers` discovery gate). UP-02
+decided (recorded below). UP-03 fixed in alkcall 0.3.1 (`fd21230`,
+ADR-030) and asserted by the extended WS-path gate. See Remediation
+log.
 
 ## Scope
 
@@ -447,13 +449,20 @@ cargo doc --no-deps                       → clean
 
 ---
 
-## Unit 4 — spec reconciliation (docs) — open
+## Unit 4 — spec reconciliation (docs) — LANDED (with the 0.3.1 consumption)
 
-As planned in this review's remediation plan: OQ-05 resolution →
-resolved, ADR-067 v1-cut note + ADR-048 amendment note updated,
-websocket.md §"Data channels for browsers" status block removed, the
-idle-knob deployment note surfaced, and the `op/register` ACL posture
-(UP-02's decision) recorded where a deployer reads.
+As planned in this review's remediation plan: OQ-05 resolved,
+ADR-067 v1-cut note + ADR-048 amendment note updated to the landed
+state, websocket.md §"Data channels for browsers" status block removed
+(the section now documents the landed surface: `with_ws_openable_alpns`,
+the `OpenableAlpns` fallback, cap policy, discovery, gates), the
+idle-knob deployment note surfaced (silent data channels make the 60 s
+default bite more often; semantics unchanged), the `op/register` ACL
+posture (UP-02's decision) recorded in ADR-048's landed note, and the
+UP-03 alkcall-side gap closed by 0.3.1 and asserted alkhttp-side (the
+extended `op/register` gate). The alknet-ADR-044 §5 pointer was
+checked: not stale (the rationale lives in this crate's ADR-044 §5;
+the alknet-ADR-043 pointers are correctly marked parked/not-ported).
 
 ---
 
@@ -489,6 +498,21 @@ next alkcall review pass; the alkhttp-side gate
 asserts the overlay-landing + collision semantics instead, which is
 the behavior Unit 2 actually wires, and is not blocked by UP-03.
 
+**LANDED in alkcall 0.3.1** (2026-09-04, `fd21230`): implemented as
+alkcall ADR-030 — `OperationEnv` gains a defaulted
+`list_operation_names`; `OverlayOperationEnv` overrides it;
+`PeerCompositeEnv::peer_operations` delegates to the peer overlay,
+and its `list_operation_names` aggregates session + connections +
+base. Upstream gate:
+`announced_op_is_discoverable_via_services_list_peers`. The version
+pin here is `0.3` (semver-compatible), so the fix arrives through a
+`Cargo.lock` bump with no source change; the WS-path gate that
+originally surfaced UP-03 now asserts the discovery promise —
+`op_register_served_per_session_and_collision_is_already_exists`
+gained the `services/list-peers` step (announce → the `alice` peer
+entry lists `consumer/exec`) and passes against 0.3.1 (it fails
+against 0.3.0, verified by the original draft).
+
 ### UP-02 decision (recorded)
 
 `op/register` is served per WS session with