chore: shorten channel label from "openclaw-weixin" to "WeChat"

[caiyc16888]

Summary

Shorten the channel display label from openclaw-weixin to WeChat for a cleaner session list in Control UI.

Problem

Session titles in Control UI are excessively long:

agent:main:openclaw-weixin:direct:o9cq80-pjknon-f6onuzhryb9siy@im.wechat

The openclaw-weixin segment comes from meta.label in the plugin. For comparison, Telegram and Discord plugins use short labels ("Telegram", "Discord").

Changes

• src/channel.ts: meta.label, meta.selectionLabel, meta.docsLabel → "WeChat"
• openclaw.plugin.json: channelConfigs.openclaw-weixin.label → "WeChat"
• package.json: openclaw.channel.label, selectionLabel, docsLabel → "WeChat"

The plugin id remains openclaw-weixin (no breaking change to config or session keys).

Related

• feat: allow channel plugins to expose a configurable label/displayName openclaw/openclaw#83930 (upstream feature request for user-configurable channel labels)

[NewFuture]

Thank you for the UI cleanup. This PR's commit series has been carried into and released by the current community-maintained openclaw-weixin v3.0.1:

• Community repository: https://github.com/NewFuture/openclaw-weixin
• Preserved head commit: 24c9984

The channel, selection, docs, and plugin-config labels now display WeChat, while the stable plugin/channel ID remains openclaw-weixin, so configuration and state compatibility are preserved.

One-line in-place replacement/upgrade (requires OpenClaw >=2026.6.1; do not uninstall the official package first):

openclaw plugins install npm:openclaw-weixin --force

For clarity: the linked repository/package is a community-maintained distribution, not the official Tencent/Weixin release. This upstream Tencent PR is still open; this comment only records that its patch has shipped in the community release.