Bug

When sending a message in the webchat UI, the text I typed disappears after hitting submit. I can see the assistant's response, but my own sent message is not rendered in the chat.

Expected: My submitted message should appear in the chat history above the assistant's reply.

Actual: Message text vanishes on submit. Only the assistant's reply is visible.

Environment:

• OpenClaw webchat (browser)
• macOS / Chrome (likely reproducible across browsers)

Steps to reproduce:

1. Open webchat
2. Type a message
3. Hit submit/enter
4. Observe that the sent message is not displayed in the conversation view