Error Handling Patterns

• Validation errors: BurgerAPI returns 400 with a structured body when Zod validation fails. See Validation Error Handling.
• Middleware: Return a Response (e.g. 401, 403) from middleware to short-circuit and send an error.
• Handlers: Return Response.json({ error: "..." }, { status: 404 }) or use try/catch and return 500.
• Debug: Set debug: true in the Burger constructor for stack traces in error responses. See Configuration.