API capability pack for bounded Google Chat API v1 operations against https://chat.googleapis.com/v1 only. Reads spaces, space metadata, space messages, message details, members, message reactions, and recent space events. Bundles a scheduled space activity digest, an AI-assisted thread brief, and an approval-gated space update workflow. Writes are approval-gated and limited to sending one plain-text message or thread reply. Enroll a Google OAuth bearer connection named google with the narrowest Chat scopes needed for the installed operations. The pack intentionally excludes admin search, space creation/update/delete/setup/import, membership mutation, message edit/delete, pin/unpin, reaction mutation, media upload/download, attachment binary reads, custom emoji mutation, user read-state and notification-setting mutation, cards/widgets, webhooks, subscriptions, and arbitrary API passthrough.