Enhance HRIStudio with immersive experiment designer and comprehensive documentation updates

- Introduced a new immersive experiment designer using React Flow, providing a professional-grade visual flow editor for creating experiments.
- Added detailed documentation for the flow designer connections and ordering system, emphasizing its advantages and implementation details.
- Updated existing documentation to reflect the latest features and improvements, including a streamlined README and quick reference guide.
- Consolidated participant type definitions into a new file for better organization and clarity.

Features:
- Enhanced user experience with a node-based interface for experiment design.
- Comprehensive documentation supporting new features and development practices.

Breaking Changes: None - existing functionality remains intact.

start-presentation.sh

@@ -0,0 +1,88 @@
+#!/bin/bash
+
+# HRIStudio Presentation Quick Start Script
+
+echo "🎯 A Web-Based Wizard-of-Oz Platform for Collaborative and Reproducible Human-Robot Interaction Research"
+echo "======================================================================================================"
+echo ""
+
+# Check if Marp is installed
+if ! command -v marp &> /dev/null; then
+    echo "⚠️  Marp CLI not found. Installing..."
+    if command -v bun &> /dev/null; then
+        bun install
+    elif command -v npm &> /dev/null; then
+        npm install
+    else
+        echo "❌ No package manager found. Please install Node.js/npm or Bun."
+        exit 1
+    fi
+fi
+
+echo "📝 Available commands:"
+echo ""
+echo "1. Live Preview (recommended for editing)"
+echo "   bun run preview OR npm run preview"
+echo ""
+echo "2. Watch mode (auto-reload on changes)"  
+echo "   bun run watch OR npm run watch"
+echo ""
+echo "3. Build PDF for conference"
+echo "   bun run build:pdf OR npm run build:pdf"
+echo ""
+echo "4. Build all formats (PDF, HTML, PPTX)"
+echo "   bun run build:all OR npm run build:all"
+echo ""
+echo "5. Start server (for remote access)"
+echo "   bun run serve OR npm run serve"
+echo ""
+
+# Parse command line argument
+case "$1" in
+    "preview"|"p")
+        echo "🔄 Starting live preview..."
+        if command -v bun &> /dev/null; then
+            bun run preview
+        else
+            npm run preview
+        fi
+        ;;
+    "watch"|"w")  
+        echo "👀 Starting watch mode..."
+        if command -v bun &> /dev/null; then
+            bun run watch
+        else
+            npm run watch
+        fi
+        ;;
+    "pdf")
+        echo "📄 Building PDF..."
+        if command -v bun &> /dev/null; then
+            bun run build:pdf
+        else
+            npm run build:pdf
+        fi
+        echo "✅ PDF generated: hristudio-presentation.pdf"
+        ;;
+    "all"|"build")
+        echo "🏗️  Building all formats..."
+        if command -v bun &> /dev/null; then
+            bun run build:all
+        else
+            npm run build:all
+        fi
+        echo "✅ All formats generated"
+        ;;
+    "serve"|"s")
+        echo "🌐 Starting server..."
+        if command -v bun &> /dev/null; then
+            bun run serve
+        else
+            npm run serve
+        fi
+        ;;
+    *)
+        echo "Usage: $0 [preview|watch|pdf|all|serve]"
+        echo "Or run without arguments to see this menu."
+        ;;
+esac