feat: fetch for the assistant with Поиск on - a page's main text for the model, the server's own network out of reach; shorter words in Настройки and the chat; the + menu's roots a step left. Also files from panes into the chat, docview and drag fixes (by the user)

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

@@ -80,3 +80,8 @@ 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'}]);
 });
+
+test('parseActions: fetch blocks', () => {
+  assert.deepStrictEqual(U.parseActions('```fetch\nhttps://go.dev/doc/go1.24\n```'),
+    [{kind: 'fetch', machine: '', path: '', body: 'https://go.dev/doc/go1.24'}]);
+});