Added docker-based testing environment for neo4j integration testing.

test

@@ -0,0 +1,18 @@
+#!/bin/bash
+set -eou pipefail
+case "${1:-dev}" in
+dev) docker compose up -d --wait && docker compose exec test go test "${@:2}" ;;
+ci) docker compose run --rm test go test "${@:2}" ;;
+*)
+  echo "Usage: $0 [dev|ci] [go test arguments...]"
+  echo
+  echo "Commands:"
+  echo "    dev    Start services and run tests in the existing test container (default)."
+  echo "    ci     Execute tests in a new, one-off container and clean up."
+  echo
+  echo "Examples:"
+  echo "    $0 dev ./... -v"
+  echo "    $0 ci -run TestSpecificFunction"
+  exit 1
+  ;;
+esac