- Unify Neo4j HTTP/Bolt/syslog ports across ariel and umbriel hosts
- Add neo4j_metrics_port (22094) for APOC exporter sidecar
- Add umbriel to Prometheus node_exporter targets
- Add Neo4j scrape config and alerts for tx rollback rate and
stalled store growth
- Replace kernos_harper MCP with andromeda (caliban.helu.ca)
- Remove angelia MCP from kottos fastagent config
- Switch neo4j group membership from keeper_user to ponos
Replaces the minimal project description with a comprehensive README
including a component overview table, quick start instructions, common
Ansible operations, and links to detailed documentation. Aligns with
Red Panda Approval™ standards.