Fix remote function discovery during prerendering - #16829

The cross-browser build job did not fail when a prerender remote function threw. The Vite-backed prerender server read its manifest before route components had populated remote-function entries.

• Prerender manifest initialization
  • Resolve route nodes and load their components before reading manifest._.remotes.
  • Preserve existing tolerant component-loading behavior used during route analysis.

const nodes = await Promise.all(manifest._.nodes.map((loader) => loader()));

for (const node of nodes) {
	await node.component?.();
}

This allows prerender remote functions to be queued and their HTTP failures to correctly fail the build.