feat(web-test): detect and close platform dialogs in getFormState/closeForm

getFormState() now returns `platformDialogs` array when platform-level
dialogs are open (About, Support Info, Error Report). These dialogs are
invisible to 1C form detection and not closeable via Escape.
closeForm() detects platform dialogs first and closes them via
_closePlatformDialogs() instead of sending Escape, returning
closedPlatformDialogs in the result.

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

.claude/skills/web-test/scripts/browser.mjs

@@ -359,6 +359,35 @@ async function dismissPendingErrors() {
   return err;
 }
 
+/**
+ * Detect open platform-level dialogs (About, Support Info, Error Report).
+ * Returns array of { type, title? } for each detected dialog, or empty array.
+ */
+async function _detectPlatformDialogs() {
+  return await page.evaluate(() => {
+    const result = [];
+    // "О программе" dialog
+    const about = document.getElementById('aboutContainer');
+    if (about && about.offsetWidth > 0) result.push({ type: 'about', title: 'О программе' });
+    // "Информация для технической поддержки" (inside a ps*win with errJournalInput)
+    const errJ = document.getElementById('errJournalInput');
+    if (errJ && errJ.offsetWidth > 0) result.push({ type: 'supportInfo', title: 'Информация для технической поддержки' });
+    // "Отчет об ошибке" / "Подробный текст ошибки" — ps*win cloud windows without aboutContainer
+    if (!result.length) {
+      document.querySelectorAll('[id^="ps"][id$="win"]').forEach(w => {
+        if (w.offsetWidth === 0 || w.offsetHeight === 0) return;
+        // Skip the main app window (ps*win that contains the 1C forms)
+        if (w.querySelector('[id^="form"][id$="_container"]')) return;
+        // Check title text
+        const titleEl = w.querySelector('[id$="headerTopLine_cmd_Title"]');
+        const title = titleEl?.textContent?.trim() || '';
+        if (title) result.push({ type: 'platformWindow', title });
+      });
+    }
+    return result;
+  });
+}
+
 /**
  * Close any platform-level dialogs that may be left open (about, support info, error report).
  * These are NOT 1C forms — they are platform UI overlays invisible to getFormState().
@@ -852,6 +881,10 @@ export async function getFormState() {
       state.hint = 'Call web_click with a button name (e.g. "Да", "Нет", "Отмена") to respond';
     }
   }
+  // Detect platform-level dialogs (About, Support Info, Error Report)
+  // These are NOT 1C forms — invisible to detectForms() and not closeable via Escape.
+  const pd = await _detectPlatformDialogs();
+  if (pd.length) state.platformDialogs = pd;
   return state;
 }
 
@@ -2124,6 +2157,16 @@ export async function clickElement(text, { dblclick, table, toggle, expand } = {
 export async function closeForm({ save } = {}) {
   ensureConnected();
   await dismissPendingErrors();
+  // If platform dialogs are open, close them instead of pressing Escape
+  const pd = await _detectPlatformDialogs();
+  if (pd.length) {
+    await _closePlatformDialogs();
+    await page.waitForTimeout(300);
+    const state = await getFormState();
+    state.closed = true;
+    state.closedPlatformDialogs = pd;
+    return state;
+  }
   const beforeForm = await page.evaluate(detectFormScript());
   await page.keyboard.press('Escape');
   await waitForStable(beforeForm);