feat(web-test): _allure/ конвенция + categories.json для триажа падений

run.mjs:
- syncAllureExtras(testDir, reportDir) копирует все файлы из
  <testDir>/_allure/ в reportDir перед генерацией отчёта. Underscore
  в имени параллелен _hooks.mjs (инфра, не тест) — discovery его
  пропускает.
- Вызов после writeAllure при --format=allure.

tests/web-test/_allure/categories.json — 7 правил классификации падений
по нашему 1С-домену:
  1. License pool exhausted (1C) — известный multi-context flake.
  2. 1C application error (modal) — exception modal через fetchErrorStack.
  3. Section panel icon-only — деградация состояния стенда.
  4. Navigation lookup miss — navigateSection/openCommand/navigateLink/switchTab.
  5. Element not found — clickElement/fillField/selectValue/closeForm/fillTableRow/deleteTableRow.
  6. Test timeout — Timeout (Nms) от раннера.
  7. Assertion failure — наши createAssertions + 1С-specific (formHasField/tableHasRow/noErrors).

spec §9: раздел «Доп. файлы Allure через <testDir>/_allure/» с таблицей
поддерживаемых типов (categories.json / environment.properties /
executor.json) и минимальным примером.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

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

@@ -18,7 +18,7 @@
  */
 import http from 'http';
 import * as browser from './browser.mjs';
-import { readFileSync, writeFileSync, unlinkSync, existsSync, readdirSync, mkdirSync } from 'fs';
+import { readFileSync, writeFileSync, unlinkSync, existsSync, readdirSync, mkdirSync, copyFileSync, statSync } from 'fs';
 import { resolve, dirname, basename, relative } from 'path';
 import { fileURLToPath } from 'url';
 import { randomUUID } from 'crypto';
@@ -821,6 +821,7 @@ async function cmdTest(rawArgs) {
 
   if (opts.format === 'allure') {
     writeAllure(results, reportDir, severityIndex);
+    syncAllureExtras(testDir, reportDir);
   } else if (opts.format === 'junit') {
     writeFileSync(resolve(opts.report), buildJUnit(report, testDir));
   } else if (opts.report) {
@@ -830,6 +831,28 @@ async function cmdTest(rawArgs) {
   if (failCount > 0) process.exit(1);
 }
 
+/**
+ * Copy any files from `<testDir>/_allure/` into `reportDir`. Convention for
+ * Allure customization that doesn't fit inside per-test JSON:
+ *   - `categories.json` — failure classification (regex → bucket)
+ *   - `environment.properties` — values shown in the Environment widget
+ *   - `executor.json` — CI/CD metadata
+ * Underscored folder mirrors `_hooks.mjs` convention (infra, not a test).
+ * Silent if folder absent.
+ */
+function syncAllureExtras(testDir, reportDir) {
+  const extrasDir = resolve(testDir, '_allure');
+  if (!existsSync(extrasDir)) return;
+  try {
+    if (!statSync(extrasDir).isDirectory()) return;
+  } catch { return; }
+  for (const entry of readdirSync(extrasDir, { withFileTypes: true })) {
+    if (!entry.isFile()) continue;
+    try { copyFileSync(resolve(extrasDir, entry.name), resolve(reportDir, entry.name)); }
+    catch { /* best-effort */ }
+  }
+}
+
 function writeAllure(results, reportDir, severityIndex) {
   for (const tr of results) {
     if (tr.status === 'skipped') continue; // Allure ignores skipped without start/stop