feat(ui): separate live data and lab surfaces

apps/control-station/test/polygonRunArchive.test.mjs

@@ -319,17 +319,19 @@ test("Polygon exposes one dataset surface and keeps legacy links compatible", ()
     workspacesForRoot("polygon").some(({ id }) => id === "polygon-run"),
     false,
   );
-  assert.equal(workspaceById("polygon-datasets").root, "polygon");
-  assert.equal(workspaceById("polygon-datasets").kind, "polygon-datasets");
+  assert.equal(workspaceById("polygon-datasets"), null);
+  assert.equal(workspaceById("datasets").root, "data");
+  assert.equal(workspaceById("datasets").kind, "datasets");
   assert.deepEqual(
     workspacesForRoot("polygon").map(({ id }) => id),
-    ["polygon-datasets"],
+    ["lab-archive"],
   );
   assert.equal(
     workspacesForRoot("system").some(({ id }) => id === "polygon-run"),
     false,
   );
   assert.equal(roots.some(({ id }) => id === "polygon"), true);
+  assert.equal(roots.at(-1)?.id, "polygon");
 });
 
 test("Polygon contracts decode path-free evidence and preserve the safety boundary", () => {