Runtime evidence capture only. Do not edit files or run commands. Call the T3 MCP preview tools directly in this exact order, continue after errors, and do not use any browser substitute:
1. preview_open {"url":"http://127.0.0.1:18873/simple","open":false}
2. preview_navigate {"url":"http://127.0.0.1:18873/heavy","timeoutMs":4000} (use the tabId returned by step 1)
3. Immediately preview_status on the same tab, with no other tool call or commentary between steps 2 and 3.
4. preview_navigate {"url":"http://127.0.0.1:18873/closed","timeoutMs":4000} on that tab.
5. preview_navigate {"url":"http://127.0.0.1:18873/simple","timeoutMs":4000} on that tab.
Paste each raw tool result verbatim in the final answer, including errors. Do not retry a call. Keep the tab open for evidence extraction.