Add shared Erlang builder/runtime base images from registry.

Publish erlang-builder and erlang-runtime as :latest, use them in prod and API test builds, auto-collect NIF libs, and sync CI to pull/push bases before eventhub build.

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

docker/scripts/verify-native-libs.sh

@@ -0,0 +1,23 @@
+#!/bin/sh
+# Падает, если у .so из release есть unresolved ldd-зависимости.
+# Usage: verify-native-libs.sh <release_dir>
+set -eu
+
+RELEASE="${1:?release_dir}"
+failed=0
+
+# shellcheck disable=SC2044
+for so in $(find "${RELEASE}" -name '*.so' 2>/dev/null); do
+  if ldd "${so}" 2>/dev/null | grep -q 'not found'; then
+    echo "ERROR: missing libs for ${so}:"
+    ldd "${so}" 2>/dev/null | grep 'not found' || true
+    failed=1
+  fi
+done
+
+if [ "${failed}" -ne 0 ]; then
+  echo "verify-native-libs: FAILED"
+  exit 1
+fi
+
+echo "verify-native-libs: OK"