Four-tier model: Member (Progress Portal only) < Viewer (sees everything,
changes nothing) < Operator < Admin. Backend policies already treated
Viewer correctly (MemberRead admits it, every write tier excludes it) —
this change makes the tier reachable and safe:
- role assignment now validates against Constants.TenantRoles
(case-insensitive, canonicalized, 400 on unknown) — previously ANY string
was persisted; also fixes the case-sensitive last-admin guard
- Viewer is assignable in all four role dropdowns; About Roles describes
the four tiers
- shared hasTenantReadScope() replaces four hand-rolled predicates
(AuthGate, dashboard x2, useDashboardSessions); Viewers land on the
dashboard and the full navbar/sidebar ("adminOrOperator" visibility
renamed to "tenantMember"); Settings admits Viewer read-only
- "Analyze now" stays Admin/GA/Operator (recompute trigger, not a view)
- deleted dead IsTenantMemberAsync (meant Admin-or-Operator — the inverse
of RequestContext.IsTenantMemberRole)
- 16 endpoint tests for role validation, 15 tests for the scope helper
Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>