Add small SaaS profile proof

infospace/profiles/small-saas/artifacts/evidence.access-review-2026-05.yaml

@@ -0,0 +1,18 @@
+id: small-saas/evidence/access-review-2026-05
+kind: evidence
+title: Access Review 2026-05
+profile: small-saas
+evidence_type: review-record
+date: "2026-05-23"
+supports:
+  - small-saas/service/billing-portal
+  - small-saas/policy/tenant-isolation
+  - small-saas/control/namespace-per-tenant
+  - small-saas/incident/cross-tenant-access-attempt
+relationships:
+  - type: supports
+    target: small-saas/policy/tenant-isolation
+  - type: supports
+    target: small-saas/control/namespace-per-tenant
+  - type: supports
+    target: small-saas/incident/cross-tenant-access-attempt