f306927853 moved useIsOrgAdmin into useCan, so useCan now reaches
useOrganizations (react-query) and fires a real fetch to /organization/list.
The Workflows / Memory / Guardrails Monitor role-gate tests spy on global
fetch and assert nothing was called for a non-admin, so that leg pushes each
of them to 12 failed cases across the suite.
Apply the same stub PR #36565 landed on UsageTab: force the org-admin leg to
false so role gating still flows through hasCapability with the varied
userRole, and the fetch-not-called invariant these tests are asserting
holds again.
Co-authored-by: Krrish Dholakia <krrish-berri-2@users.noreply.github.com>