v2026.9.25.2

## What's Changed
* fix(call): channel call panel by @whutchinson98 in https://github.com/macro-inc/macro/pull/6982
* fix(web): remount Drive document details when identity changes by @dev-rb in https://github.com/macro-inc/macro/pull/6986
* fix(web): smooth agent tool grouping and collapse animations by @ehayes2000 in https://github.com/macro-inc/macro/pull/6942
* feat: enable AI usage billing only in dev by @whutchinson98 in https://github.com/macro-inc/macro/pull/6989
* feat(calls): allow external participants + calendar / calls UI by @ehayes2000 in https://github.com/macro-inc/macro/pull/6677
* fix(comments): use the shared caret for the document Discussion toggle by @gbirman in https://github.com/macro-inc/macro/pull/6990
* fix(teams): unretardify teams (i) - improve channel creation by @ehayes2000 in https://github.com/macro-inc/macro/pull/6991
* fix(settings): url layout and structure by @dev-rb in https://github.com/macro-inc/macro/pull/6992
* fix(web): preserve document file types in quick access by @dev-rb in https://github.com/macro-inc/macro/pull/6993
* fix(calendar): topbar not visible on navigation by @dev-rb in https://github.com/macro-inc/macro/pull/6983
* Seanaye/fix/delayed badge update by @seanaye in https://github.com/macro-inc/macro/pull/6987
* fix(search): restore DM priority in Quick Access by @dev-rb in https://github.com/macro-inc/macro/pull/6996
* fix(channels): message links into the open channel navigate again by @gbirman in https://github.com/macro-inc/macro/pull/6995
* fix(email): match the scheduled-send Cancel button to other app buttons by @gbirman in https://github.com/macro-inc/macro/pull/6999
* fix(ai-billing): exclude free AI features from paid usage by @whutchinson98 in https://github.com/macro-inc/macro/pull/6997
* refactor(web): remove unused entity detail navigation stack by @dev-rb in https://github.com/macro-inc/macro/pull/7001
* fix(email): flashing on draft save by @peterchinman in https://github.com/macro-inc/macro/pull/7003


**Full Changelog**: https://github.com/macro-inc/macro/compare/v2026.9.25.1...v2026.9.25.2