next.js

62575295 - feat(node-streams): wire node stream primitives into render pipeline

feat(node-streams): wire node stream primitives into render pipeline Integrate the node stream building blocks (from prior PR) into the actual render paths, all gated behind experimental.useNodeStreams: - app-render.tsx: add useNodeStreams branching throughout render paths, teeDebugChannelForSsrAndBrowser and debugChannelClientForBrowser helpers - app-render-prerender-utils.ts: ReactServerResult accepts NodeReadable, createReactServerPrerenderResultFromPrerender dispatcher - instant-validation.tsx: node stream branches for validation renders - render-result.ts: accept Node Readable as response body with piping - flight-render-result.ts: accept Node Readable in constructor - app-page.ts: PPR resume path for node streams - stream-ops.ts/debug-channel-server.ts: widen types to include Readable