Restructure omni services and add Chatwoot research snapshot

omni_chat/src/index.ts

@@ -0,0 +1,36 @@
+import { createServer } from "node:http";
+
+const port = Number(process.env.PORT || 8090);
+const service = "omni_chat";
+
+const server = createServer((req, res) => {
+  if (req.method === "GET" && req.url === "/health") {
+    const payload = JSON.stringify({
+      ok: true,
+      service,
+      receiverFlow: process.env.RECEIVER_FLOW_QUEUE_NAME || "receiver.flow",
+      senderFlow: process.env.SENDER_FLOW_QUEUE_NAME || "sender.flow",
+      now: new Date().toISOString(),
+    });
+    res.statusCode = 200;
+    res.setHeader("content-type", "application/json; charset=utf-8");
+    res.end(payload);
+    return;
+  }
+
+  res.statusCode = 404;
+  res.setHeader("content-type", "application/json; charset=utf-8");
+  res.end(JSON.stringify({ ok: false, error: "not_found" }));
+});
+
+server.listen(port, "0.0.0.0", () => {
+  console.log(`[omni_chat] listening on :${port}`);
+});
+
+function shutdown(signal: string) {
+  console.log(`[omni_chat] shutting down by ${signal}`);
+  server.close(() => process.exit(0));
+}
+
+process.on("SIGINT", () => shutdown("SIGINT"));
+process.on("SIGTERM", () => shutdown("SIGTERM"));