add Blob Store Architecture and Helm Chart Recipes
Blob Store Architecture takes the master and volume server walkthrough
that used to live in the README: assign, write, read, replication and
data center placement, then how the master tracks volumes instead of
files, and the disk notes.
Helm Chart Recipes gives copy-paste values files for a three-node S3
cluster, a development cluster, a lakehouse with the Iceberg catalog
exposed, filer metadata on PostgreSQL, and node-local disks. Every
recipe renders against the current chart.
Claude-Session: https://claude.ai/code/session_014apMEkkquAtAYp89paTkAT