Build a Coffee Shop Order API

Problem/Feature Description

A local coffee shop needs a REST API to manage its menu and customer orders. Build it using Hono and TypeScript, targeting Node.js.

Endpoints:

• GET /api/menu -- list all menu items
• GET /api/menu/:id -- get a single menu item
• POST /api/menu -- add a new menu item (fields: name, category, price, available)
• POST /api/orders -- create a new order (fields: customerName, items array with menuItemId, size, quantity)
• GET /api/orders -- list all orders
• GET /api/orders/:id -- get a single order by ID

Business rules:

• Menu item names must be unique
• Price must be a positive number
• Order must contain at least one item
• Size must be one of: small, medium, large
• Quantity must be between 1 and 10

Use in-memory storage (no real database needed).

Output Specification

Produce:

• src/app.ts -- Hono application setup with routes
• src/server.ts -- server entry point
• src/routes/menu.ts -- menu route handlers
• src/routes/orders.ts -- order route handlers
• package.json -- with dependencies listed (no need to run npm install)

You may create additional files as needed for a well-structured codebase.