fix(scrape): remove style tags from blocks before extracting any content

server/cdp-client.js

@@ -146,6 +146,9 @@ class CDPClient {
                 // placeholder 개별 블록도 건너뛰기
                 if (block.classList.contains('bg-gray-500/10') && block.textContent.trim() === '') continue;
 
+                // 블록 내 style 태그 제거 (CSS 코드 누출 방지)
+                block.querySelectorAll('style').forEach(s => s.remove());
+
                 // --- 작업 카드 (task boundary) ---
                 const taskCard = block.querySelector('.isolate');
                 if (taskCard || block.classList.contains('isolate')) {