Add DMG creation script for distribution

create_dmg.sh

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+#!/bin/bash
+
+echo "📦 Creating DMG installer..."
+
+# Build the app first
+./build.sh
+
+# Variables
+APP_NAME="EnhancedTerminal"
+VERSION="3.0"
+DMG_NAME="${APP_NAME}-v${VERSION}"
+DMG_TEMP="${DMG_NAME}-temp"
+DMG_FINAL="${DMG_NAME}.dmg"
+VOLUME_NAME="${APP_NAME} ${VERSION}"
+
+# Clean up any existing DMG files
+rm -f "${DMG_FINAL}"
+rm -rf "${DMG_TEMP}"
+
+# Create temporary DMG folder
+mkdir -p "${DMG_TEMP}"
+
+# Copy the app
+echo "📋 Copying application..."
+cp -R "${APP_NAME}.app" "${DMG_TEMP}/"
+
+# Create Applications symlink
+echo "🔗 Creating Applications symlink..."
+ln -s /Applications "${DMG_TEMP}/Applications"
+
+# Copy documentation
+echo "📄 Copying documentation..."
+mkdir -p "${DMG_TEMP}/Documentation"
+cp README.md "${DMG_TEMP}/Documentation/"
+cp USAGE_GUIDE.md "${DMG_TEMP}/Documentation/"
+cp QUICK_REFERENCE.md "${DMG_TEMP}/Documentation/"
+
+# Create a README for the DMG
+cat > "${DMG_TEMP}/README.txt" << 'EOF'
+Enhanced Terminal v3.0
+======================
+
+Installation:
+1. Drag "EnhancedTerminal.app" to the "Applications" folder
+2. Open Applications folder and right-click EnhancedTerminal
+3. Select "Open" (first time only, due to macOS security)
+4. Enjoy your enhanced terminal!
+
+Documentation:
+- See the Documentation folder for detailed guides
+- Press Cmd+? in the app for keyboard shortcuts
+- Type 'help' in the terminal for quick reference
+
+Features:
+✓ Multiple tabs with session persistence
+✓ Split panes (vertical/horizontal)
+✓ AI command generation (OpenAI/Ollama)
+✓ Command snippets with categories
+✓ Command history search (fuzzy)
+✓ Auto-suggestions from history
+✓ Command aliases
+✓ Multiple themes
+✓ Copy-on-select
+✓ Middle-click paste
+✓ Visual bell
+✓ Clickable URLs
+✓ Zoom pane
+✓ And much more!
+
+For support or issues, check the documentation.
+EOF
+
+# Create the DMG
+echo "💿 Creating DMG image..."
+hdiutil create -volname "${VOLUME_NAME}" \
+    -srcfolder "${DMG_TEMP}" \
+    -ov -format UDZO \
+    "${DMG_FINAL}"
+
+# Clean up
+echo "🧹 Cleaning up..."
+rm -rf "${DMG_TEMP}"
+
+# Get file size
+DMG_SIZE=$(du -h "${DMG_FINAL}" | cut -f1)
+
+echo ""
+echo "✅ DMG created successfully!"
+echo "━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━"
+echo "📦 File: ${DMG_FINAL}"
+echo "💾 Size: ${DMG_SIZE}"
+echo ""
+echo "To test the DMG:"
+echo "  open ${DMG_FINAL}"
+echo ""
+echo "To distribute:"
+echo "  Share the ${DMG_FINAL} file"
+echo "━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━"