Send WhatsApp messages to other people or search/sync WhatsApp history via the wacli CLI (not for normal user chats).
Initial release of WhatsApp integration via the wacli CLI. - Allows sending WhatsApp messages to others or searching/syncing history using wacli. - Requires explicit user request and recipient for all messages; confirms before sending. - Provides commands for authentication, syncing, searching chats/messages, backfilling history, and sending files/text. - Not for routine user chats; only to contact third parties or search WhatsApp history.