Node.js Just Cut Its Memory in Half — One Docker Line, Zero Code Changes, $300K Saved

V8 pointer compression finally comes to Node.js after 6 years. A single Docker image swap drops heap memory by 50%, improves P99 latency by 7%, and can save companies $80K-$300K/year. Cloudflare, Igalia, and Platformatic collaborated to make it happen. Here is the full technical breakdown, real production benchmarks on AWS EKS, and why your CFO needs to see this.