chore: import clean Agent Desk snapshot (6/7)

web/components/site-header.test.mjs

@@ -0,0 +1,14 @@
+import assert from "node:assert/strict";
+import { readFile } from "node:fs/promises";
+import { describe, it } from "node:test";
+
+const source = await readFile(new URL("./site-header.tsx", import.meta.url), "utf8");
+
+describe("site header preferences", () => {
+  it("renders palette and theme controls without a locale switcher", () => {
+    assert.doesNotMatch(source, /LocaleSwitcher/);
+    assert.match(source, /import \{ PaletteToggle \} from "@\/components\/palette-toggle"/);
+    assert.match(source, /import \{ ThemeToggle \} from "@\/components\/theme-toggle"/);
+    assert.match(source, /<PaletteToggle \/>[\s\S]*<ThemeToggle \/>/);
+  });
+});