feat: Initialize Turtle Control Center with React and WebSocket server

- Added index.html for the main entry point of the client application.
- Created package.json for client dependencies and scripts.
- Implemented App component with view controls and layout.
- Added CSS styles for the application and components.
- Developed ControlPanel component for turtle management and commands.
- Created Map3D component for 3D visualization of turtles.
- Established Zustand store for state management of turtles and WebSocket connection.
- Set up server with Express and WebSocket for handling turtle updates and commands.
- Added REST API endpoints for turtle status updates and command handling.
- Implemented start.sh script for setting up and running the application.

start.sh

@@ -0,0 +1,70 @@
+#!/bin/bash
+
+echo "🐢 Turtle Control Center - Setup & Start"
+echo "========================================"
+echo ""
+
+# Check if Node.js is installed
+if ! command -v node &> /dev/null; then
+    echo "❌ Node.js is not installed. Please install Node.js 18+ first."
+    echo "   Visit: https://nodejs.org/"
+    exit 1
+fi
+
+echo "✅ Node.js version: $(node --version)"
+echo ""
+
+# Install server dependencies
+echo "📦 Installing server dependencies..."
+cd server
+if [ ! -d "node_modules" ]; then
+    npm install
+    if [ $? -ne 0 ]; then
+        echo "❌ Failed to install server dependencies"
+        exit 1
+    fi
+else
+    echo "   ℹ️  Dependencies already installed (skipping)"
+fi
+cd ..
+
+# Install client dependencies
+echo "📦 Installing client dependencies..."
+cd client
+if [ ! -d "node_modules" ]; then
+    npm install
+    if [ $? -ne 0 ]; then
+        echo "❌ Failed to install client dependencies"
+        exit 1
+    fi
+else
+    echo "   ℹ️  Dependencies already installed (skipping)"
+fi
+cd ..
+
+echo ""
+echo "✨ Setup complete!"
+echo ""
+echo "🚀 Starting servers..."
+echo ""
+echo "Server will be available at:"
+echo "  🌐 Web Interface: http://localhost:3000"
+echo "  📡 API Server: http://localhost:3001"
+echo "  🔌 WebSocket: ws://localhost:3002"
+echo ""
+echo "Press Ctrl+C to stop all servers"
+echo ""
+
+# Start both server and client
+trap 'kill 0' SIGINT
+
+cd server
+npm start &
+SERVER_PID=$!
+
+cd ../client
+npm run dev &
+CLIENT_PID=$!
+
+# Wait for both processes
+wait $SERVER_PID $CLIENT_PID