feat(adapter): add adapter and api server; add client UI

client/scripts/inspect-mqtt.js

@@ -0,0 +1,67 @@
+#!/usr/bin/env node
+// Simple MQTT inspector: subscribe to a topic and print raw payloads (pretty JSON when possible)
+// Usage: node inspect-mqtt.js <brokerUrl> <username> <password> <topic>
+// Example: node inspect-mqtt.js wss://beta-broker-mqtt.fcam.vn:8084/mqtt myuser mypass "ipc/fss/#"
+
+const mqtt = require('mqtt');
+
+function tryParseJSON(s) {
+  try {
+    return JSON.parse(s);
+  } catch (e) {
+    return null;
+  }
+}
+
+const args = process.argv.slice(2);
+if (args.length < 4) {
+  console.error('Usage: node inspect-mqtt.js <brokerUrl> <username> <password> <topic>');
+  process.exit(1);
+}
+
+const [brokerUrl, username, password, topic] = args;
+
+const options = {
+  username,
+  password,
+  reconnectPeriod: 5000,
+  connectTimeout: 30000,
+};
+
+console.log(`Connecting to ${brokerUrl} ...`);
+const client = mqtt.connect(brokerUrl, options);
+
+client.on('connect', () => {
+  console.log('Connected. Subscribing to', topic);
+  client.subscribe(topic, { qos: 1 }, (err) => {
+    if (err) console.error('Subscribe error', err);
+  });
+});
+
+client.on('message', (t, payloadBuffer) => {
+  const payload = payloadBuffer.toString();
+  const parsed = tryParseJSON(payload);
+  console.log('---');
+  console.log('Topic:', t);
+  if (parsed !== null) {
+    try {
+      console.log('JSON payload:');
+      console.log(JSON.stringify(parsed, null, 2));
+    } catch (e) {
+      console.log('Could not stringify JSON:', e.message);
+      console.log('Raw payload:', payload);
+    }
+  } else {
+    console.log('Raw payload (non-JSON):');
+    console.log(payload);
+  }
+});
+
+client.on('error', (err) => {
+  console.error('MQTT error:', err.message || err);
+});
+
+process.on('SIGINT', () => {
+  console.log('\nDisconnecting...');
+  client.end(() => process.exit(0));
+});