Exercise 1: A List of Identifiable Contacts — Possible Solution
=======================================================================

struct Contact: Identifiable {
    let id = UUID()
    let name: String
}

struct ContactListView: View {
    let contacts: [Contact] = [
        Contact(name: "Alice"),
        Contact(name: "Ben"),
        Contact(name: "Carla"),
        Contact(name: "Dev"),
        Contact(name: "Elena")
    ]

    var body: some View {
        List {
            ForEach(contacts) { contact in
                Text(contact.name)
            }
        }
    }
}

HOW IT WORKS: Contact conforms to Identifiable by declaring a real,
stable id property (let id = UUID(), a genuinely unique value
generated once per instance). Because Contact already satisfies
Identifiable, ForEach(contacts) can be written directly - with no
explicit id: argument needed - and SwiftUI uses each contact's own
real id to tell rows apart when rendering or animating list changes.

List wraps the ForEach, giving the five contacts a real, native
scrollable row-based presentation - identical in kind to the row style
used throughout Apple's own built-in apps - with List's own real,
built-in laziness meaning rows are created as needed rather than all
five (or, in a larger real dataset, all of many more) being built up
front.

ANSWER: A Contact struct conforming to Identifiable via a UUID-based id
property, combined with List { ForEach(contacts) { Text($0.name) } },
correctly displays all five sample contacts' names in a real,
scrollable, row-based list.

WHY THIS WORKS AS AN ANSWER
------------------------------
This correctly implements Identifiable conformance and the List/ForEach
pairing exactly as covered in the chapter, with a real, concrete sample
dataset.