Addresses the second review round (internal re-review + Codex on c38840482):
- Active-account matching (logout preselection, /usage in-use marker) is
org-decisive when EITHER side carries an org: a legacy bare-email active
row no longer flags org-scoped siblings via the shared email (reverse of
the previous fix). Both-org-less keeps the email/account fallback, so
providers without orgs are unaffected.
- Status-line usage context key includes orgId, so rotating between two
same-email subscriptions invalidates the cached quota immediately
instead of showing the previous org's numbers for the cache TTL.
- CredentialHealthResult carries orgId/orgName and auth-gateway check
labels rows with the org, so a failing row names the subscription.
- getOAuthAccountIdentity preserves org-only identities; the login
success message renders them.
- ACP /usage account-id fallback labels get the org suffix too.
- Regression tests for both matching directions (marker + logout).