```

feat: 切换到Firecrawl Browser Sandbox并更新API密钥

- 将抓取功能从Firecrawl Agent切换到Firecrawl Browser Sandbox
- 更新.env文件中的FIRECRAWL_API_KEY为新密钥
- 修改前端界面文本，将"Firecrawl Agent"改为"Firecrawl Browser Sandbox"
- 重构runScraper函数，添加按钮状态管理和滚动定位功能
- 移除zod验证schema，简化数据处理逻辑
- 更新定时任务调度器以使用新的浏览器抓取方式
- 清空results.json历史数据
```

public/index.html

@@ -906,7 +906,7 @@
                 </div>
             </div>
 
-            <p style="color:#888;font-size:13px;margin:-8px 0 18px;">通过配置 URL 和提示词，使用 Firecrawl Agent
+            <p style="color:#888;font-size:13px;margin:-8px 0 18px;">通过配置 URL 和提示词，使用 Firecrawl Browser Sandbox
                 抓取任意网页数据。结果会自动保存，可在「抓取结果」页查看历史。</p>
 
             <div class="scrapers-table-wrap">
@@ -1057,7 +1057,7 @@
                 <td>
                     <div class="action-btns">
                         <button class="btn-sm btn-edit" onclick="openScraperModal('${s.id}')" title="编辑">编辑</button>
-                        <button class="btn-sm btn-run" onclick="runScraper('${s.id}')" title="测试运行">测试</button>
+                        <button class="btn-sm btn-run" onclick="runScraper('${s.id}', this)" title="测试运行">测试</button>
                         <button class="btn-sm ${s.enabled ? 'btn-toggle-on' : 'btn-toggle-off'}" onclick="toggleScraper('${s.id}', ${!s.enabled})" title="切换启用状态">${s.enabled ? '禁用' : '启用'}</button>
                         <button class="btn-sm btn-delete" onclick="deleteScraper('${s.id}')" title="删除">删除</button>
                     </div>
@@ -1140,12 +1140,19 @@
             }
         }
 
-        async function runScraper(id) {
+        async function runScraper(id, btnEl) {
             const item = scrapersList.find(s => s.id === id);
             const resultDiv = document.getElementById('scraperRunResult');
             const contentDiv = document.getElementById('scraperRunResultContent');
             resultDiv.style.display = 'block';
             contentDiv.textContent = `正在测试抓取「${item?.city} - ${item?.type}」，请稍候...`;
+            resultDiv.scrollIntoView({ behavior: 'smooth', block: 'nearest' });
+
+            const originalText = btnEl ? btnEl.textContent : '';
+            if (btnEl) {
+                btnEl.disabled = true;
+                btnEl.textContent = '测试中...';
+            }
             try {
                 const res = await fetch(`/api/scrapers/${id}/run`, { method: 'POST' });
                 const json = await res.json();
@@ -1153,6 +1160,11 @@
                 contentDiv.textContent = JSON.stringify(json.data, null, 2);
             } catch (err) {
                 contentDiv.textContent = '❌ 测试失败: ' + err.message;
+            } finally {
+                if (btnEl) {
+                    btnEl.disabled = false;
+                    btnEl.textContent = originalText || '测试';
+                }
             }
         }
 
@@ -1213,4 +1225,4 @@
     </script>
 </body>
 
-</html>
+</html>