Write Posts 14-16, complete Production Architecture section

- Post 14: Multi-Site Resilience — Hyper-V Replica (frequencies, failover types,
  Replica Broker, extended replication), Storage Replica (sync/async, stretched
  clusters), Campus Clusters (WS2025 RLNM), Pure Storage ActiveDR, Dell/NetApp/HPE
  SAN replication, DR testing framework
- Post 15: Live Migration Internals — six-phase deep dive, memory pre-copy algorithm,
  WS2025 improvements (RDMA, dynamic proc compat, GPU-P migration, SMB bandwidth
  control), migration time estimation, troubleshooting guide
- Post 16: WSFC at Scale — cluster maximums, scale up vs out architecture, cluster
  sets, CAU zero-downtime patching, stretched clusters, anti-affinity rules,
  operational runbooks, scale recommendations by environment size
- Added 4 SVG diagrams: resilience decision framework, live migration phases,
  WSFC scale architecture, cluster set architecture

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

Author: kristopherjturner