docs: re-key architecture docs off the alknet mono-repo — speak as alkcall

The ported docs still framed alknet siblings (alknet-core/-call/-channels/
-http/-tls/-client) as live load-bearing context of this crate. With the
extraction complete and alknet headed for glue-level replacement, the docs
now speak as alkcall and cite the real sibling crates (alkhttp, alktls,
alktty, alktunnels, alktrader).

- ADR-054 (new): re-own the verifier-selection rule in-crate — three
  remote roles (public X.509 endpoint / transport relay / hub),
  ServerCertVerifier by PeerEntry presence, RemoteIdentity None
  load-bearing. Provenance: alknet ADR-034 (never ported), demoted to
  footnote. Resolves OQ-21's cross-repo authority gap.
- OQ-43 (new, deferred(scope)): composition-layer ownership and shape
  after the alknet replacement — the named receiver for the
  downstream-side deferrals (OQ-33 endpoint layer, OQ-41 QUIC-native
  substrate, OQ-42 hub broker, OQ-19 persistence adapters, ADR-045 dial
  seam). README layering diagram redrawn with the composition layer as
  TBD-ownership instead of "alknet / alknode" in concrete.
- Spec docs reframed: titles, self-references, dial/TLS/from_jsonschema
  homes, malformed legacy cite rows removed; dead relative research
  paths qualified as source-repo paths.
- ADR amendments (append-only): 027 (alknet-http -> alkhttp), 031 (post-
  extraction state), 044 (split landed as modules in alkcall), 045
  (name normalization; citation-space note).
- Citation hygiene: unprefixed/colliding source-repo cites prefixed
  ("alknet ADR-NNN (provenance)") across 009/011/022/034/035/038/040/
  043/044/045; stale OQ cites corrected (session registries OQ-04, batch
  semantics OQ-03, verifier rule ADR-054); stale anchors fixed.
- README provenance note consolidated; citation conventions documented.

Verification: markdown link check (all local links resolve, all in-crate
ADR cites point at existing decisions/ files); table integrity check
(uniform row widths across open-questions.md and edited tables); residual
alknet-mention sweep (only provenance/historical/intentional framing
remains); architecture review subagent pass with zero remaining criticals.
Docs-only change — no code paths touched.

docs/architecture/channels-wire.md

@@ -1,6 +1,6 @@
 ---
 status: draft
-last_updated: 2026-07-18
+last_updated: 2026-10-13 (alkcall reframing)
 ---
 
 # channels-wire.md — The 8-Byte Chunk Format
@@ -103,7 +103,8 @@ There is no channels-layer framing-disambiguation trick beyond the fixed
 8-byte header. The channels layer does not interpret the payload — it
 doesn't know if the payload is TTY chunks, call frames, or tunnel bytes.
 Any framing disambiguation within the payload is the handler's concern
-(see `tty-wire.md` §"Framing disambiguation" for TTY's first-byte trick,
+(see the TTY wire format's "framing disambiguation" — alknet ADR-052,
+provenance; TTY is now the sibling crate `alktty` — for TTY's first-byte trick,
 which is internal to TTY's 5-byte format).
 
 ## Zero-length sentinel = EOF
@@ -141,13 +142,16 @@ experience. See ADR-034 §substrate modes (as amended by ADR-035), ADR-039.
 **Implementation status:** the in-line substrate mode is implemented
 (single bidi stream, header-demuxed N channels). The QUIC-native
 multi-stream substrate (accept remaining bidi streams, read headers off
-each) is deferred to the downstream alknet crate (OQ-41). The wire
+each) is deferred to the composition layer's dial/accept half (OQ-41;
+its owner — OQ-43). The wire
 format and demux loop are correct for both substrates; only the outer
 `accept_bi()` loop is missing.
 
 ## Wire-level invariants (REQ-CH-01, 02, 04, 05)
 
-The de-risk POC (`docs/research/alknet-channels/poc-summary.md` §Issues
+The de-risk POC (source-repo research, alknet provenance:
+`/workspace/@alkdev/alknet/docs/research/alknet-channels/poc-summary.md`
+§Issues
 Surfaced) surfaced invariants that hang channels silently if underspecified.
 These are **contracts**, not implementation details — both sides must agree.
 
@@ -262,14 +266,14 @@ for tooling.
 | Control (out-of-band) | `channel/control` call operation on channel 0 (deferred — OQ-39) | ADR-037 |
 | Close | `channel/close` call operation on channel 0; data chunks flushed before close | ADR-037, REQ-CH-06 |
 
-### REQ-CH-06: exit-chunk-before-close ordering (generalizes ADR-055)
+### REQ-CH-06: exit-chunk-before-close ordering (generalizes alknet ADR-055 — the TTY exit-chunk invariant, provenance)
 
 The channel's data chunks MUST be written and flushed before the
 `channel/close` operation is sent on channel 0. This is a wire-level
 invariant: the side closing must observe the data-channel pump complete
 before issuing the call operation.
 
-For TTY this is the exit-chunk-is-last invariant (ADR-055) carried
+For TTY this is the exit-chunk-is-last invariant (alknet ADR-055, provenance) carried
 forward: the exit control message (on TTY's `STREAM_CTRL_OUT` stream_type
 4, inside TTY's 5-byte payload) is the last data before `channel/close`.
 For tunnels it is the last data byte before close. The channels layer's
@@ -297,7 +301,7 @@ All design decisions are documented as ADRs in [decisions/](decisions/).
 Open questions are tracked in [open-questions.md](open-questions.md).
 Key questions affecting this doc:
 
-- **OQ-24** (tracker; alknet OQ-68) (resolved): Add/strip API shape —
+- **OQ-24** ([tracker](open-questions.md); source: alknet OQ-68) (resolved): Add/strip API shape —
   built into the read/write path (the demux loop strips headers; handlers
   never see them), with the low-level header primitives exposed in
   `channels::wire` for tooling.
@@ -307,13 +311,15 @@ Key questions affecting this doc:
 - ADR-034: channels wire format (the decision, amended by ADR-035 — 8-byte
   header, no `stream_type`)
 - ADR-035: channels pure channel multiplexing (the umbrella decision that
-  amends ADR-034/074/077)
+  amends ADR-034 and the source-repo connection/from_source decision —
+  alknet ADR-074, provenance; the in-crate homes are ADR-007/008)
 - ADR-036: channel 0 pre-negotiated
 - ADR-037: channel lifecycle operations
 - ADR-040: backpressure, channel limits, ID reuse
 - ADR-047: openable ALPNs are operations (per-ALPN open ops dissolve
   the generic `channel/open`)
-- `docs/research/alknet-channels/poc-summary.md` §POC Target 1, §Issues
-  Surfaced #4-#6 (REQ-CH-01, 02, 04)
-- `docs/research/stream-unification/findings.md` — the research that
-  surfaced the 8-byte format decision
+- Source-repo POC research (alknet provenance):
+  `/workspace/@alkdev/alknet/docs/research/alknet-channels/poc-summary.md`
+  §POC Target 1, §Issues Surfaced #4-#6 (REQ-CH-01, 02, 04);
+  `/workspace/@alkdev/alknet/docs/research/stream-unification/findings.md`
+  — the research that surfaced the 8-byte format decision