Send WhatsApp messages to other people or search/sync WhatsApp history via the wacli CLI (not for normal user chats).
wacli skill initial release: A new skill for sending WhatsApp messages to others and managing history via the wacli CLI. - Enables message sending, chat search, and history sync/backfill using wacli. - Not for normal user chats—use only when explicitly requested to contact a third party or manage WhatsApp history. - Safety checks require explicit recipient and message, and confirmation before sending. - Includes command references for authentication, sync, chat/message search, backfill, and file transfer. - Provides installation instructions for wacli via Homebrew or Go.