The generated app_native.ex file uses MyApp.Layouts.HTML instead of MyApp.Layouts

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Generating the app_native.ex file creates the following:

```elixir
def live_view() do
quote do
use LiveViewNative.LiveView,
formats: [
:html,
:swiftui
],
layouts: [
# notice ChatWeb.Layouts.HTML
html: {ChatWeb.Layouts.HTML, :app},
swiftui: {ChatWeb.Layouts.SwiftUI, :app}
]

unquote(verified_routes())
end
end
```

When it should be `ChatWeb.Layouts`. This results in the following error when running the server: `no "app" html template defined for ChatWeb.Layouts.HTML (the module does not exist)`

Locate the generator that emits app_native.ex and reproduce the generated layout configuration from the issue. Compare the HTML layout module reference with the expected ChatWeb.Layouts value, then run the server to verify the missing-template error is resolved.

Written by the indexing model from the issue text.