Provisions the first real NetKingdom tenant (tenant:customer:binky, matching
the slug already live in production OpenBao paths) with a human tenant-admin
user and a workload-identity OIDC client for qonto-assistant's MCP callers,
routed through secrets-engine for secret custody and ops-warden for
discoverable, minimal-touch credential access. Closes Gap #1 flagged in
qonto-assistant's QONTO-WP-0003 closure (no OIDC issuer existed in the fleet).
Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>
