ops: key management runbook (backup, rotation, separation) #205
Description
Goal
Document and implement operational best practices for keys/identities.
Scope
- Separate keys: node identity vs wallet keys vs validator keys (if applicable)
- Backup/restore guidance
- Rotation procedure and how it impacts identity/peering
- File permissions and secret handling
Acceptance criteria
- Operator-facing runbook exists
- Tooling supports safe backups and predictable restarts