Docs: Remove misleading # Panics section from `WireframeServer::new`

[coderabbitai]

The documentation block for WireframeServer::new contains a # Panics section describing conditions under which the function may panic.
The current implementation uses map_or(1, …), so this path can no longer panic.

Please update or remove the # Panics section so that the docs accurately reflect behaviour.

Reported by @leynos in #16 (comment).