Add debugging instructions to Node integration tests README

Author: cursoragent

dev-packages/node-integration-tests/README.md

@@ -47,3 +47,19 @@ To run tests with Vitest's watch mode:
 To filter tests by their title:
 
 `yarn test -t "set different properties of a scope"`
+
+## Debugging Tests
+
+To enable verbose logging during test execution, set the `DEBUG` environment variable:
+
+`DEBUG=1 yarn test`
+
+When `DEBUG` is enabled, the test runner will output:
+- Test scenario startup information (path, flags, DSN)
+- Docker Compose output when using `withDockerCompose`
+- Child process stdout and stderr output
+- HTTP requests made during tests
+- Process errors and exceptions
+- Line-by-line output from test scenarios
+
+This is particularly useful when debugging failing tests or understanding the test execution flow.