feat: Implement recipe selection with backend integration

Backend changes (C#):
- Add SelectRecipe method to MachineBridge for recipe selection
- Add currentRecipeId tracking in MainForm
- Implement SELECT_RECIPE handler in WebSocketServer

Frontend changes (React/TypeScript):
- Add selectRecipe method to communication layer
- Update handleSelectRecipe to call backend and handle response
- Recipe selection updates ModelInfoPanel automatically
- Add error handling and logging for recipe operations

Layout improvements:
- Add Layout component with persistent Header and Footer
- Create separate IOMonitorPage for full-screen I/O monitoring
- Add dynamic IO tab switcher in Header (Inputs/Outputs)
- Ensure consistent UI across all pages

🤖 Generated with Claude Code

Co-Authored-By: Claude <noreply@anthropic.com>

frontend/package.json

@@ -17,6 +17,7 @@
     "lucide-react": "^0.303.0",
     "react": "^18.2.0",
     "react-dom": "^18.2.0",
+    "react-router-dom": "^7.9.6",
     "tailwind-merge": "^2.2.0",
     "three": "^0.160.0"
   },