feat: initial public release (MAESTRO v0.1.0)

Open-source release of MAESTRO, an agent orchestration platform that runs
LLM-driven tasks through sandboxed tools, with a web UI. Apache-2.0.
See README.md and docs/ (getting-started, configuration, architecture).

tests/fixtures/scripts/logs-to-stderr.js

@@ -0,0 +1,6 @@
+async function main() {
+  console.error('hello from stderr');
+  console.error('second line');
+  return 'done';
+}
+module.exports = main;