When the Feishu API hangs or responds slowly, the sendChain never settles,
causing the per-chat queue to remain in a processing state forever and
blocking all subsequent messages in that thread. This adds a 30-second
default timeout to all Feishu HTTP requests by providing a timeout-aware
httpInstance to the Lark SDK client.
Closes#36412
Co-authored-by: Ayane <wangruofei@soulapp.cn>