This is a Grafana backend datasource plugin that streams real-time MQTT messages into Grafana dashboards via Grafana Live. It subscribes to MQTT v3.1.x topics, decodes JSON payloads into typed data frames, and pushes them to panels at configurable intervals. The plugin supports TLS/mTLS, WebSocket connections, Private Datasource Connect (PDC) proxy, multi-tenant streaming key isolation, and template variables. The backend is written in Go using the Paho MQTT client and the Grafana Plugin SDK; the frontend uses React and the Grafana UI library. The codebase is well-structured with clean separation of concerns (MQTT client abstraction, framing logic, topic management), comprehensive tests (unit, integration, e2e), and modern dependency management.