test: guard cli null helpers

src/cli/program/register.status-health-sessions.test.ts

@@ -51,8 +51,9 @@ type MockCalls = {
 };
 
 function requireRecord(value: unknown, label: string): Record<string, unknown> {
-  expect(typeof value, label).toBe("object");
-  expect(value, label).not.toBeNull();
+  if (!value || typeof value !== "object") {
+    throw new Error(`expected ${label}`);
+  }
   return value as Record<string, unknown>;
 }