WIP: stage all uncommitted work — sprints 46-221, graduation headers, specialist fleet, test steps 909-1988

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

example_projects/node_api_gateway/src/server.js

@@ -0,0 +1,16 @@
+const http = require("http");
+
+function health() {
+  return { ok: true, service: "gateway" };
+}
+
+const server = http.createServer((_req, res) => {
+  res.writeHead(200, { "Content-Type": "application/json" });
+  res.end(JSON.stringify(health()));
+});
+
+if (require.main === module) {
+  server.listen(8080);
+}
+
+module.exports = { health };