Chat SDK adds Lark and Feishu support

In three linesVercel AI Chat SDK adds support for Lark and Feishu via a new official vendor adapter. Bots can post, edit, and delete messages, stream replies via Lark's native cardkit typewriter API, send interactive cards, and react with emojis. Connection uses Lark's WebSocket transport without requiring HTTP webhook exposure.

Summary generated by Claude — human-verified