QONTO-WP-0004-T04. Modeled directly on examples/tenant-engine/: one
resource type (finance-snapshot), one action (finance.qonto.read),
two registered subjects (an agent-harness session identity and the
founder's human identity), and a Rego policy gating on
resource.system + action + subject.type + tenant match. Tenant
capability-role/plan liveness (VEN/CUS) is deliberately NOT encoded
here -- that's qonto-assistant's separate tenant-engine live-lookup
check, per this package's own scope note.
Verified: flex-auth test-policy (6 rego tests + 6 fixtures, all pass),
load-registry, and CLI check for both an allow and a deny case. Also
verified end-to-end over real HTTP: a live flex-auth serve loaded with
this exact registry+policy, hit by qonto-assistant's actual
FlexAuthCheckClient (not a mock) -- allow for tenant:friendly:binky,
deny (wrong_tenant) for a mismatched tenant.
Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>