feat: simplify RBAC roles and remove dev role switcher

- Simplified RBAC system to two roles: super_admin and user.
- Removed tenant_admin and rp_admin roles across backend and frontend.
- Removed Dev Role Switcher feature from adminfront.
- Updated all handlers, middlewares, and navigation to reflect the new role model.
- Fixed backend build errors and updated tests.

adminfront/src/features/users/UserCreatePage.tsx

@@ -819,7 +819,7 @@ function UserCreatePage() {
                       id="tenantSlug"
                       className="flex h-9 w-full rounded-md border border-input bg-transparent px-3 py-1 text-sm shadow-sm transition-colors focus-visible:outline-none focus-visible:ring-1 focus-visible:ring-ring disabled:cursor-not-allowed disabled:opacity-50"
                       {...register("tenantSlug")}
-                      disabled={profile?.role === "tenant_admin"}
+                      disabled={profileRole !== "super_admin"}
                     >
                       {nonHanmacFamilyTenants.map((tenant) => (
                         <option key={tenant.id} value={tenant.slug}>