v2026.6.16.0

## What's Changed
* feat(github): github codecheck notifications by @whutchinson98 in https://github.com/macro-inc/macro/pull/4087
* feat(notification_service): migrate to doppler by @whutchinson98 in https://github.com/macro-inc/macro/pull/4099
* chg(ui): add args for local email part display when no display name by @sedson in https://github.com/macro-inc/macro/pull/4094
* feat(bots): plain text bot tokens by @whutchinson98 in https://github.com/macro-inc/macro/pull/4100
* style(command): fix theme chip size in command menu by @sedson in https://github.com/macro-inc/macro/pull/4101
* fix(email): close backfill dedup race with a partial unique index by @gbirman in https://github.com/macro-inc/macro/pull/4097
* feat(notif): filter read notifs out of digest by @seanaye in https://github.com/macro-inc/macro/pull/4084
* feat: model select + paywall changes, authoritative frontend models, model router by @ehayes2000 in https://github.com/macro-inc/macro/pull/4077
* feat(iac): add doppler projects stack by @whutchinson98 in https://github.com/macro-inc/macro/pull/4102
* fix(ci): auto deploy lexical-service by @ehayes2000 in https://github.com/macro-inc/macro/pull/4032
* fix(auth): fetch permissions in init gmail link so the 402 gate works by @gbirman in https://github.com/macro-inc/macro/pull/4105
* feat(command): surface nested commands, show full hotkeys by @sedson in https://github.com/macro-inc/macro/pull/4108
* fix(email): stop double email init on login by @gbirman in https://github.com/macro-inc/macro/pull/4109
* fix(ci): make lexical deploy manual and pass Cloudflare account by @ehayes2000 in https://github.com/macro-inc/macro/pull/4110
* fix(sidebar): apply inbox account selection on the first click by @gbirman in https://github.com/macro-inc/macro/pull/4111
* fix(style): update theme mention chip style by @aidanhb in https://github.com/macro-inc/macro/pull/4112
* fix(split): fix spotlight split tw clases by @sedson in https://github.com/macro-inc/macro/pull/4113


**Full Changelog**: https://github.com/macro-inc/macro/compare/v2026.6.15.1...v2026.6.16.0