Document the one recipe a new rapp uses to acquire runtime secrets:
standing KV secrets bind through a CCR target.rapp, leases through
grant rapp_id. Stamp the existing postgres grants and the qonto
workload CCR. Gate, delivery, and revocation are unchanged.
Enable tenant commercial secrets: applier accepts mount tenants/, apply
policy and OIDC role for company-email IMAP (metadata only; values are
founder Red provision). Extend agent-high-risk-boundary for the path.
