- New module: mci-channel-wechat-personal
- Implements ChannelAdapter SPI for personal WeChat
- Calls Python channel-service pywechat HTTP APIs:
- /v1/wechat-personal/login/start for initAccount QR code
- /v1/wechat-personal/send/text and /send/image for sendMessage
- Configurable base URL via sino.channel.wechat-personal.base-url
- Added MockWebServer unit tests
- Wired module into backend parent and mci-server