Update MQTT broker to broker.hivemq.com

README.md

@@ -112,7 +112,7 @@ When enabled, all AI-generated commands are intercepted and require explicit ope
 Every agent decision, operator command, and state transition is logged to an append-only JSONL file with ISO 8601 timestamps, source attribution, and severity levels.
 
 ### MQTT Edge Connectivity
-Real-time telemetry is published to a configurable MQTT broker (`test.mosquitto.org` for demo), enabling integration with industrial SCADA/HMI systems and external monitoring tools like MQTT Explorer.
+Real-time telemetry is published to a configurable MQTT broker (`broker.hivemq.com` for demo), enabling integration with industrial SCADA/HMI systems and external monitoring tools like MQTT Explorer.
 
 ### Statistical Anomaly Detection
 A rolling Z-Score algorithm (window = 20 ticks) continuously monitors vibration data. When Z > 3σ, the system triggers visual alerts and injects a `SYSTEM_ALERT` into the LLM context to force recalibration.
@@ -127,7 +127,7 @@ bioops-twin/
 ├── app.py                     # Hugging Face Spaces entry point
 ├── requirements.txt
 ├── assets/
-│   └── centrifuge_rotor.glb   # 3D centrifuge model
+│   └── centrifuge_v3.glb      # 3D centrifuge model
 ├── data/
 │   └── manuals/               # Calibration manual sources for RAG
 ├── bioops/
@@ -158,7 +158,7 @@ bioops-twin/
 | Variable | Required | Description |
 |----------|----------|-------------|
 | `GEMINI_API_KEY` | No | Google Gemini API key. Without it, the agent runs in MOCK mode |
-| `MQTT_BROKER` | No | MQTT broker host (default: `test.mosquitto.org`) |
+| `MQTT_BROKER` | No | MQTT broker host (default: `broker.hivemq.com`) |
 | `MQTT_PORT` | No | MQTT broker port (default: `1883`) |
 
 ---

bioops/industrial_edge/mqtt_client.py

@@ -1,7 +1,7 @@
 """MQTT Edge Adapter for BioOps Twin.
 
 Simulates industrial connectivity by publishing telemetry to a public
-MQTT broker (e.g., test.mosquitto.org). Includes a robust fallback
+MQTT broker (e.g., broker.hivemq.com). Includes a robust fallback
 so the local simulation does not crash if the broker is unavailable.
 """
 
@@ -15,7 +15,7 @@ import paho.mqtt.client as mqtt
 logger = logging.getLogger("bioops_twin.mqtt")
 
 # Public broker for demo purposes
-MQTT_BROKER = "test.mosquitto.org"
+MQTT_BROKER = "broker.hivemq.com"
 MQTT_PORT = 1883
 MQTT_TOPIC_TELEMETRY = "bioops/factory1/centrifuge1/telemetry"
 MQTT_TOPIC_ALERTS = "bioops/factory1/centrifuge1/alerts"