Description

Every user message sent through the web UI at http://127.0.0.1:18789 is processed twice by the agent — once labeled openclaw-control-ui and once labeled You. Both messages produce identical Assistant responses.

What I've tried:

• Disabling openclaw-weixin in plugins.entries (still happens)
• Completely removing openclaw-weixin from disk + config (still happens)
• Full uninstall and clean reinstall (still happens)
• nemoclaw my-assistant recover (still happens)

Observation:
The openclaw-weixin plugin is auto-installed and auto-enabled during onboarding regardless of user's wizard selection. However, removing it does NOT fix the duplicate message issue, so it's not the root cause.

The duplication appears to be in the message broadcaster routing messages with two identity labels for a single user input.

Reproduction Steps

1. Fresh install with curl -fsSL https://www.nvidia.com/nemoclaw.sh | bash
2. Select NVIDIA Endpoints, Nemotron 120B, default settings
3. Skip all messaging channels (including wechat)
4. Open dashboard via tokenized URL
5. Send any message → see duplicate

Environment

• NemoClaw CLI: v0.0.45
• OpenClaw version: 2026.4.24
• OS: Windows 11 + WSL2 (Ubuntu)
• GPU: NVIDIA RTX 5070 Laptop (8GB)
• Inference: NVIDIA Endpoints / Nemotron 3 Super 120B

Debug Output

Logs

Checklist

• I confirmed this bug is reproducible
• I searched existing issues and this is not a duplicate