Release r-0821 (v1.4.0)

Info

Commit 254c359 was deployed to stage. See code diff.

It was initialized by ryanjjung.

How to Promote?

In order to promote this to prod, edit the draft and press "Publish release".

What's Changed

• Fix vulnerabilities April 8th 2026 by @davinotdavid in #1616
• WeekCalendar design update by @devmount in #1608
• Add Flower alongside live environment Celery workers by @ryanjjung in #1617
• Update stage image; fix boolean -> string in all envs by @ryanjjung in #1622
• Add meeting link url to confirmation email by @davinotdavid in #1623
• Remove unused typescript code by @devmount in #1621
• Bump pyasn1 from 0.6.2 to 0.6.3 in /backend in the uv group across 1 directory by @dependabot[bot] in #1602
• Add screenshots to README for better visualization by @devmount in #1628
• Build a Redis cache replica set to migrate to by @ryanjjung in #1631
• Enable E2E tests after stage deployments by @rwood-moz in #1590
• Fix "invalid grant" error during Google Oauth by @davinotdavid in #1632
• Fix cluster settings by @ryanjjung in #1633
• Bump version to v1.4.0 by @davinotdavid in #1634
• Deploy Redis changes to production by @ryanjjung in #1637

Full Changelog: r-0806...r-0821