fix(web-test): close DLB hint popup before paste fallback in fillReferenceField

When DLB dropdown shows only a hint ("Введите строку для поиска...") without
.eddText items, the code fell through without closing the popup. This left
editDropDown covering the input field, causing Playwright to wait up to 30s
for actionability on the next page.click(). Now we Escape the hint popup
when eddState.visible=true but items are empty (34s → 5s on cold cache).

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

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

@@ -1627,6 +1627,10 @@ async function fillReferenceField(selector, fieldName, value, formNum) {
         // No match in DLB dropdown — close and fall through to paste approach
         await page.keyboard.press('Escape');
         await page.waitForTimeout(300);
+      } else if (eddState.visible) {
+        // DLB opened a hint popup (no .eddText items) — close it before proceeding
+        await page.keyboard.press('Escape');
+        await page.waitForTimeout(300);
       }
     }
   } catch { /* DLB approach failed — fall through to paste */ }