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/circular.js

@@ -0,0 +1,10 @@
+/**
+ * Returns a circular object — tests that the runner handles JSON.stringify failure
+ * gracefully (reports serializationError instead of crashing the child process).
+ */
+async function main() {
+  const o = { a: 1 };
+  o.self = o;
+  return o;
+}
+module.exports = main;