2.0.0-beta.15: Server render effect doesn't respect `defer: true`

[dangkyokhoang]

https://stackblitz.com/edit/nitrojs-nitro-6khuvexw?file=src%2Fapp.tsx

This render effect runs in SSR because serverEffect doesn't check options?.defer:

createRenderEffect(
  ...
  { defer: true },
);

[ryansolid]

Fixed on next (8b6c2986). The server effect path never checked defer — it now matches the client: the compute still runs for tracking, but the initial side-effect run is skipped, and since a "next change" never comes during SSR the effect function simply never fires. Will be in the next beta.