* Store `ctx.Done` channel in a struct instead of a `ctx`. See: https://go.dev/blog/context-and-structs
* Return from `handleListener` on `ctx` cancellation, preventing goroutine leaks
* Simplify `handleListener` by removing the `send` closure. The `handleListener` is inlined by the compiler
* Return the first error from `Close`
* Preallocate slice in `Addrs`
* Reduce duplication in handling `opts.Trace`
* http/listener: revert error propagation from Close()
* http/listener: preserve original listener address in Addr()
* Preserve the original address when calling Addr() with multiple listeners
* Remove unused listeners from the slice
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