[Bug] ZCode WeChat connector fails with "Please upgrade WeChat interface version in OpenClaw" on latest WeChat release #816

Summary & Impact

When attempting to connect or bind ZCode with WeChat, the WeChat integration gateway blocks connection and displays an error dialog:

"Please upgrade WeChat interface version in OpenClaw"

The client encountered this error directly while attempting to establish the WeChat connection via ZCode. This occurs even when running the latest version of the WeChat app, preventing users from completing the WeChat agent pairing and communication workflow in ZCode.

Screenshot & Verification

• Error Dialog Displayed: Please upgrade WeChat interface version in OpenClaw (with a single "Done" action button).
• Client / User Flow: Client initiated WeChat connection through ZCode and received this blocking error.
• Independent Verification: Roman (Ambassador / Mod) independently tested and verified reproduction of the exact same error via ZCode on the latest official WeChat app build.
• Client / User: Min [Z.ai]
• Discord Report Thread: https://discord.com/channels/1346756824233148527/1552954009512321035

Analysis & Root Cause

1. WeChat Protocol / Interface Version Bump: The latest update to the WeChat mobile/desktop application expects a newer interface API/protocol version from third-party connectors.
2. OpenClaw Interface Outdated in ZCode: The OpenClaw integration layer utilized by ZCode has not yet been bumped to match the latest WeChat interface specifications, causing WeChat to reject the binding handshake with the error message shown.

Proposed Resolution

• Update the OpenClaw WeChat interface bridge in ZCode/gateway to the latest protocol version required by modern WeChat builds.
• Ensure backwards/forward compatibility with recent WeChat app updates.

Reported on behalf of the community by Roman M. (Volunteer / Ambassador).