Adds Section 18b documenting the planned erasure-coded shard layer for
public post auto-replication. 3-of-10 scheme where CDN nodes hold
sub-threshold shards that are mathematically unreconstructable alone.
Re-replication via chunk-pull only — no shard ever reconstructs the full
content. Connects to existing CDN tree, encryption, and ReplicationRequest
infrastructure.
Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>