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Adding Node Red
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‎.gitignore‎

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# Storybook
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storybook-static/
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# Node-RED
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.node-red/
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package-lock.json
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‎CLAUDE.md‎

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## Common Commands
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### Starting the Full System
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```bash
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# From repository root - starts everything (API, Frontend, Node-RED)
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./start.sh
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# Services will be available at:
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# - Frontend: http://localhost:57666
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# - API Docs: http://localhost:57666/docs
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# - Node-RED: http://localhost:1880
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```
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### Backend Development
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```bash
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python -m benchmesh_service.main --config config.yaml
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# Run with FastAPI (includes frontend auto-start)
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uvicorn benchmesh_service.api:app --host 0.0.0.0 --port 57666
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PYTHONPATH=src uvicorn benchmesh_service.api:app --host 0.0.0.0 --port 57666
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# Run tests
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pytest tests/
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pytest -v tests/
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```
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### Node-RED
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```bash
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# From repository root
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# Install Node-RED (first time only)
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npm install
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# Start Node-RED standalone
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npm run start:nodered
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# Node-RED runs on port 1880
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# Data stored in .node-red/ directory
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```
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### Frontend Development
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```bash

‎STARTUP.md‎

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# BenchMesh System Startup Guide
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## Quick Start
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To start the entire BenchMesh system (Backend, Frontend, and Node-RED):
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```bash
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./start.sh
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```
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This will launch:
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- **BenchMesh API & Frontend** on `http://localhost:57666`
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- **Node-RED Automations** on `http://localhost:1880`
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Press `Ctrl+C` to stop all services.
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## First Time Setup
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### 1. Install Python Dependencies
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```bash
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cd benchmesh-serial-service
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pip install -r requirements.txt
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cd ..
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```
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### 2. Install Node.js Dependencies
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```bash
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npm install
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```
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### 3. Install Frontend Dependencies
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```bash
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cd benchmesh-serial-service/frontend
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npm ci
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cd ../..
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```
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## Individual Services
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### Start Backend Only
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```bash
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cd benchmesh-serial-service
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PYTHONPATH=src uvicorn benchmesh_service.api:app --host 0.0.0.0 --port 57666
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```
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### Start Node-RED Only
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```bash
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npm run start:nodered
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```
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### Start Frontend Development Server
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```bash
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cd benchmesh-serial-service/frontend
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npm run dev
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```
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## Service Ports
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| Service | Port | URL |
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|---------|------|-----|
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| Frontend | 57666 | http://localhost:57666 |
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| API | 57666 | http://localhost:57666/docs |
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| Node-RED | 1880 | http://localhost:1880 |
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## Node-RED Data
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Node-RED configuration and flows are stored in `.node-red/` directory in the repository root.
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## Troubleshooting
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### Port Already in Use
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If you get "address already in use" errors:
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```bash
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# Check what's using port 57666
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lsof -i :57666
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# Check what's using port 1880
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lsof -i :1880
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# Kill the process
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kill <PID>
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```
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### Node-RED Not Starting
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```bash
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# Check Node-RED logs
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cat .node-red/nodered.log
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# Test Node-RED manually
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./node_modules/.bin/node-red --userDir ./.node-red --port 1880
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# Check if Node-RED is installed
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ls -la node_modules/.bin/node-red
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```
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### Frontend Not Building
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```bash
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cd benchmesh-serial-service/frontend
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rm -rf node_modules
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npm ci
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npm run build
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```

‎benchmesh-serial-service/frontend/src/ui/MeasurementStatusBar.tsx‎

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padding: '8px 16px',
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display: 'flex',
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gap: '8px',
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alignItems: 'center',
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zIndex: 100
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}}>
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<button
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>
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📈 Measurements Graph
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</button>
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<div style={{ marginLeft: 'auto' }}>
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<button
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onClick={() => {
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const nodeRedUrl = `${window.location.protocol}//${window.location.hostname}:1880`
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window.open(nodeRedUrl, '_blank', 'noopener,noreferrer')
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}}
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style={{
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padding: '6px 12px',
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background: 'rgba(255,68,68,.15)',
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color: '#ff6b6b',
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border: '1px solid rgba(255,68,68,.35)',
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borderRadius: '6px',
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cursor: 'pointer',
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fontSize: '12px',
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fontWeight: 600,
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display: 'flex',
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alignItems: 'center',
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gap: '6px'
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}}
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title="Open Node-RED Automations in new tab"
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>
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<span style={{ fontSize: '14px' }}>🔴</span> Node-RED Automations
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</button>
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</div>
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</div>
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{recordOpen && (

‎package.json‎

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{
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"name": "benchmesh",
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"version": "0.1.0",
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"description": "BenchMesh - Lab Instrument Control System",
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"private": true,
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"scripts": {
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"start:nodered": "node-red --userDir ./.node-red",
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"start:all": "./start.sh",
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"postinstall": "echo 'Node-RED installed successfully. Run ./start.sh to start all services.'"
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},
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"dependencies": {
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"node-red": "^3.1.0"
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},
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"engines": {
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"node": ">=14.0.0"
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}
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}

‎start.sh‎

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#!/bin/bash
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# BenchMesh Startup Script
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# Starts FastAPI backend, Frontend, and Node-RED
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set -e
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SCRIPT_DIR="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)"
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cd "$SCRIPT_DIR"
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echo "🚀 Starting BenchMesh System..."
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# Create node-red data directory if it doesn't exist
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mkdir -p .node-red
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# Start Node-RED in background using local installation
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echo "📡 Starting Node-RED on port 1880..."
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./node_modules/.bin/node-red --userDir "$SCRIPT_DIR/.node-red" > .node-red/nodered.log 2>&1 &
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NODERED_PID=$!
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echo "Node-RED PID: $NODERED_PID"
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# Start FastAPI backend with frontend
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echo "🔧 Starting BenchMesh API and Frontend..."
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cd benchmesh-serial-service
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PYTHONPATH=src uvicorn benchmesh_service.api:app --host 0.0.0.0 --port 57666 &
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API_PID=$!
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echo "API PID: $API_PID"
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# Wait for services to start
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echo "⏳ Waiting for services to initialize..."
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sleep 3
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echo ""
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echo "✅ BenchMesh System Started!"
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echo ""
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echo "📊 Frontend: http://localhost:57666"
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echo "🔴 Node-RED: http://localhost:1880"
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echo "📡 API: http://localhost:57666/docs"
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echo ""
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echo "Press Ctrl+C to stop all services"
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echo ""
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# Trap Ctrl+C to stop all services
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trap "echo ''; echo '🛑 Stopping BenchMesh...'; kill $NODERED_PID $API_PID 2>/dev/null; exit 0" INT TERM
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# Keep script running
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wait

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