Function streaming to be framework-agnostic on Vercel

This post details the default enablement of streaming responses for all Node.js Vercel Functions, outlining the behavioral changes in response to runtime errors (headers sent immediately, errors logged upon stream closure) and the enhanced runtime logs experience (near real-time, per-log-statement visibility). It also notes the impact on Vercel Log Drains and provides instructions for enabling streaming today via the VERCEL_FORCE_NODEJS_STREAMING environment variable.