Resolve final-review findings: commandRole is now the single source of
truth (Run resolves role once and threads it to handlers, replacing
hardcoded openStore roles). Tighten crypto/SKILL/SPEC/USER-MANUAL wording
and document init's agent-key-on-first-init-only semantics.
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
Replace KeyFromEnv with AgentKeyFromEnv/AdminKeyFromEnv reading EMCLI_KEY
and EMCLI_ADMIN_KEY; add NewDEK for envelope encryption. Seal/Open double
as DEK wrap/unwrap.
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>