Feishu channel add WebSocket full-duplex channel support

[moon2l]

Feishu channel currently support traditional webhook integration.
I'd love to see WebSocket full-duplex channel support added, as this would eliminate the need for maintaining a separate public webhook server.
Thanks.

Related Docs: https://open.feishu.cn/document/server-docs/event-subscription-guide/event-subscription-configure-/request-url-configuration-case

[axlrose]

Suggest adding support for long connections; all other OpenClaw alternatives support this feature.

[fwt11]

+1

[qq501987847]

+1，这迭代速度还挺快的，就是BUG还是有点多

[nksgw11]

I think this issue should be resolved after merging this PR: #188 @jaberjaber23

[Roshenn]

+1

[zxl-coder-ai]

Here is the solution, pending merge #294