feat(tui): migrate core surfaces to V2 themes (#37145)

packages/tui/test/devtools.test.ts

@@ -0,0 +1,19 @@
+import { expect, test } from "bun:test"
+import { DevTools } from "../src/devtools"
+
+test("registers and updates grouped DevTools data", () => {
+  const group = DevTools.register({ id: "test", title: "Test data" })
+
+  group.set("Duration", "1.00 ms")
+  group.set("Duration", "2.00 ms")
+  group.set("Count", 2)
+
+  expect(DevTools.data().find((item) => item.id === "test")).toEqual({
+    id: "test",
+    title: "Test data",
+    entries: [
+      { key: "Duration", value: "2.00 ms" },
+      { key: "Count", value: 2 },
+    ],
+  })
+})