feat: Поиск - with it on the assistant searches DuckDuckGo itself and answers from what it found; without it, it cannot. «Думал N сек.»

internal/server/web/static/wsutil.test.js

@@ -75,3 +75,8 @@ test('md: the common marks, everything else escaped', () => {
   // Inside code nothing is marked up.
   assert.strictEqual(U.md('`**a**`'), '<p><code>**a**</code></p>');
 });
+
+test('parseActions: search blocks', () => {
+  assert.deepStrictEqual(U.parseActions('Ищу:\n```search\nnginx 1.27 changelog\n```'),
+    [{kind: 'search', machine: '', path: '', body: 'nginx 1.27 changelog'}]);
+});