feat: human-like typing for browser Google and YouTube search

Make the browser search helper search the way a person does: load the
site home page, type the query into the search box one key at a time, and
press Enter — for both Google `search` and `youtube` — instead of jumping
straight to a results URL. Supports the goal of a human-like assistant.

Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>

bot/scripts/stream-test/browse-search.mjs

@@ -87,13 +87,26 @@ async function closeAll() {
   try { await connected?.close(); } catch { /* ignore */ }
 }
 
+// Human-like search: land on the site's home page, type the query into its
+// search box one key at a time, and press Enter — the way a person would,
+// rather than jumping straight to a results URL.
+async function typeSearch(homeUrl, boxSelector, query) {
+  await page.goto(homeUrl, { waitUntil: 'domcontentloaded' });
+  const box = page.locator(boxSelector).first();
+  await box.waitFor({ timeout: 15000 });
+  await box.click();
+  await box.pressSequentially(query, { delay: 45 });
+  await box.press('Enter');
+}
+
 try {
   await acquirePage();
   page.setDefaultTimeout(20000);
   await page.bringToFront().catch(() => {});
 
   if (mode === 'youtube') {
-    await page.goto(`https://www.youtube.com/results?search_query=${encodeURIComponent(query)}`, { waitUntil: 'domcontentloaded' });
+    // Type into YouTube's search box like a person, then play the first result.
+    await typeSearch('https://www.youtube.com/?hl=ko', 'input#search, input[name="search_query"]', query);
     await page.waitForSelector('ytd-video-renderer a#video-title, a#video-title', { timeout: 20000 });
     const first = page.locator('ytd-video-renderer a#video-title, a#video-title').first();
     const title = (await first.getAttribute('title').catch(() => '')) || (await first.innerText().catch(() => ''));
@@ -102,7 +115,9 @@ try {
     await page.evaluate(() => { const v = document.querySelector('video'); if (v && v.paused) v.play(); });
     out({ ok: true, mode, title: (title || '').trim(), url: page.url() });
   } else {
-    await page.goto(`https://www.google.com/search?q=${encodeURIComponent(query)}&hl=ko`, { waitUntil: 'domcontentloaded' });
+    // Type into Google's search box like a person, then read the results.
+    await typeSearch('https://www.google.com/?hl=ko', 'textarea[name="q"], input[name="q"]', query);
+    await page.waitForLoadState('domcontentloaded');
     await page.waitForTimeout(1500);
     // Google serves its bot-detection interstitial (/sorry/index) to sessions it
     // suspects are automated. Detect it structurally (by URL, locale-independent)