feat: add Box IM client for Netease Yunxin integration

Add BoxIMClient with get_credentials and send_p2p_message methods,
using Huihui platform MD5 signing mechanism (sorted keys, 24h timestamp,
12-char alphanumeric nonce). Includes full test coverage.
This commit is contained in:
stefanfeng
2026-08-07 16:36:50 +08:00
parent 7327939b4d
commit 43bb57eacf
3 changed files with 186 additions and 0 deletions