feat(channel): 添加小红书、XMPP、元宝和 Zalo 渠道扩展
新增小红书、XMPP、元宝、Zalo 四个渠道扩展。
小红书渠道扩展主要模块：config, gateway, webhook, outbound, streaming, pairing, security, dedupe, media, status, window
XMPP 渠道扩展主要模块：plugin, config, gateway, outbound, streaming, pairing, security, dedupe, accounts, commands, muc, rate_limiter, stanza_utils, status, monitor
元宝渠道扩展主要模块：plugin, client, config_schema, gateway, outbound(chunk/queue/transport), inbound(dispatcher), streaming, pairing, security, accounts, actions, commands, codec(biz/conn), session, shared, utils
Zalo 渠道扩展主要模块：api, config, gateway, webhook, outbound, pairing, security, session, polling, monitor, status
Kris
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