体验: 滚动条加深与选中行区分，文件列表表头固定不随滚动且横向滚动条贴可视区底部

Co-authored-by: Cursor <cursoragent@cursor.com>

mactfsui/scripts/shot-workspace.mjs

@@ -26,6 +26,15 @@ try {
   await win.getByText("源码目录").waitFor({ timeout: 120000 })
   await win.waitForTimeout(6000)
   await win.screenshot({ path: path.join(SHOT_DIR, "22-workspace-cards.png") })
+  // 验证表头 sticky：滚动文件列表后表头应仍可见
+  await win.evaluate(() => {
+    const container = document.querySelector('[data-slot="table-container"]')
+    if (container) {
+      container.scrollTop = 400
+    }
+  })
+  await win.waitForTimeout(600)
+  await win.screenshot({ path: path.join(SHOT_DIR, "24-sticky-header.png") })
   const themeButton = win.getByRole("button", { name: /主题：/ })
   await themeButton.click()
   await win.waitForTimeout(400)