fix(homecore-api): close WS auth bypass + reply-theater, harden dev bin (ADR-161 A1/A2/A8)

A1 (CRITICAL): the /api/websocket handshake accepted any non-empty token,
ignoring the LongLivedTokenStore whitelist the REST path enforces — a full
WS auth bypass. Now validates via state.tokens().is_valid() before auth_ok;
wrong tokens get auth_invalid + close.

A2 (HIGH): WS command replies were pushed into an mpsc whose only consumer
logged and discarded them — no result/pong/event reached the client. Split
the socket with futures StreamExt::split; a dedicated writer task drains the
response channel onto the wire.

A8 (HIGH): the homecore-api dev bin bound 0.0.0.0 with unconditional
allow-any auth and no env path. Wired the HOMECORE_TOKENS env path (dev
fallback warn-logged when unset) and defaulted the bind to 127.0.0.1
(HOMECORE_BIND to opt into LAN).

Tests (fail on old source):
- ws_handshake::wrong_token_is_rejected (old → auth_ok)
- ws_handshake::result_reply_is_received / ping_pong_reply_is_received (old → timeout)
- server_bin_auth::provisioned_bin_rejects_wrong_bearer / from_env_path_enforces_whitelist

Co-Authored-By: claude-flow <ruv@ruv.net>

v2/Cargo.lock

@@ -3472,6 +3472,7 @@ dependencies = [
  "axum",
  "chrono",
  "dashmap",
+ "futures-util",
  "homecore",
  "http-body-util",
  "hyper 1.8.1",
@@ -3479,6 +3480,7 @@ dependencies = [
  "serde_json",
  "thiserror 1.0.69",
  "tokio",
+ "tokio-tungstenite",
  "tower 0.5.3",
  "tower-http",
  "tracing",
@@ -10933,7 +10935,7 @@ dependencies = [
 
 [[package]]
 name = "wifi-densepose-hardware"
-version = "0.3.0"
+version = "0.3.1"
 dependencies = [
  "approx",
  "byteorder",
@@ -10953,7 +10955,7 @@ dependencies = [
 
 [[package]]
 name = "wifi-densepose-mat"
-version = "0.3.0"
+version = "0.3.1"
 dependencies = [
  "anyhow",
  "approx",
@@ -10985,7 +10987,7 @@ dependencies = [
 
 [[package]]
 name = "wifi-densepose-nn"
-version = "0.3.0"
+version = "0.3.1"
 dependencies = [
  "anyhow",
  "candle-core 0.4.1",
@@ -11039,7 +11041,7 @@ dependencies = [
 
 [[package]]
 name = "wifi-densepose-ruvector"
-version = "0.3.1"
+version = "0.3.2"
 dependencies = [
  "approx",
  "criterion",
@@ -11059,7 +11061,7 @@ dependencies = [
 
 [[package]]
 name = "wifi-densepose-sensing-server"
-version = "0.3.1"
+version = "0.3.2"
 dependencies = [
  "axum",
  "chrono",
@@ -11093,7 +11095,7 @@ dependencies = [
 
 [[package]]
 name = "wifi-densepose-signal"
-version = "0.3.2"
+version = "0.3.3"
 dependencies = [
  "chrono",
  "criterion",
@@ -11120,7 +11122,7 @@ dependencies = [
 
 [[package]]
 name = "wifi-densepose-train"
-version = "0.3.1"
+version = "0.3.2"
 dependencies = [
  "anyhow",
  "approx",
@@ -11158,7 +11160,7 @@ dependencies = [
 
 [[package]]
 name = "wifi-densepose-vitals"
-version = "0.3.0"
+version = "0.3.1"
 dependencies = [
  "criterion",
  "serde",
@@ -11190,7 +11192,7 @@ dependencies = [
 
 [[package]]
 name = "wifi-densepose-wifiscan"
-version = "0.3.0"
+version = "0.3.1"
 dependencies = [
  "serde",
  "tokio",