fix(ci): reuse ApiTests image in e2e instead of blind rebuild.

e2e pulled/reused eventhub-tests from test job or registry; plain buildkit logs if rebuild needed. Root cause of #342 e2e cancel: quiet rebuild + prune + timeout.

Co-authored-by: Cursor <cursoragent@cursor.com>

scripts/run-stand-api-tests.sh

@@ -45,20 +45,49 @@ echo "  WS_HOST=${WS_HOST}"
 echo "  ADMIN_WS_HOST=${ADMIN_WS_HOST}"
 
 IMAGE="eventhub-api-tests:local"
+REG_IMAGE=""
 if [[ -n "${GITHUB_SHA:-}" ]]; then
   IMAGE="eventhub-api-tests:sha-${GITHUB_SHA:0:12}"
+  REG_IMAGE="${REGISTRY:-git.sabilin.com/eventhub}/eventhub-api-tests:sha-${GITHUB_SHA:0:12}"
 fi
 
-echo "=== build API test image (${IMAGE}) ==="
-bash scripts/retry-docker-build.sh 5 60 -- \
-  docker buildx build \
-    --network=host \
-    --file docker/ApiTests.Dockerfile \
-    --tag "${IMAGE}" \
-    --load \
-    --provenance=false \
-    --sbom=false \
-    .
+echo "=== ensure API test image (${IMAGE}) ==="
+have_image=0
+if docker image inspect "${IMAGE}" >/dev/null 2>&1; then
+  echo "  local image present: ${IMAGE}"
+  have_image=1
+elif docker image inspect eventhub-tests:latest >/dev/null 2>&1; then
+  # act/hostexecutor: test job уже собрал тот же Dockerfile
+  docker tag eventhub-tests:latest "${IMAGE}"
+  echo "  reused local eventhub-tests:latest → ${IMAGE}"
+  have_image=1
+elif [[ -n "${REG_IMAGE}" ]]; then
+  if [[ -n "${REGISTRY_USER:-}" && -n "${REGISTRY_PASSWORD:-}" ]]; then
+    echo "${REGISTRY_PASSWORD}" | docker login git.sabilin.com -u "${REGISTRY_USER}" --password-stdin >/dev/null
+  fi
+  if docker pull "${REG_IMAGE}"; then
+    docker tag "${REG_IMAGE}" "${IMAGE}"
+    echo "  pulled ${REG_IMAGE}"
+    have_image=1
+  else
+    echo "  pull failed — will rebuild"
+  fi
+fi
+
+if [[ "${have_image}" -ne 1 ]]; then
+  # plain: иначе BUILDKIT_PROGRESS=quiet прячет причину падения rebar3
+  export BUILDKIT_PROGRESS="${BUILDKIT_PROGRESS:-plain}"
+  bash scripts/retry-docker-build.sh 5 60 -- \
+    docker buildx build \
+      --network=host \
+      --progress=plain \
+      --file docker/ApiTests.Dockerfile \
+      --tag "${IMAGE}" \
+      --load \
+      --provenance=false \
+      --sbom=false \
+      .
+fi
 
 docker run --rm --network=host \
   -e CT_MODE=remote \