feat: add membership creation date to Organization Member List table (CAL-5406)

[eunjae-lee]

This reverts #20978 and adds a fix (ba6cf08).

It wrongly back-filled createdAt of membership for all the existing rows, while we just wanted to have the default value for the newly added rows.

What does this PR do?

• Fixes #XXXX (GitHub issue number)
• Fixes CAL-XXXX (Linear issue number - should be visible at the bottom of the GitHub issue description)

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Summary by mrge

Added "Member Since" and "Last Updated" columns to the Organization Member List table, showing when each member joined and when their membership was last updated. These columns support date range filtering.

• Database Changes
  • Added createdAt and updatedAt fields to the Membership table.

[linear]

CAL-5406 Add membership creation date to Org Member List table

[vercel]

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2 Skipped Deployments

Name	Status	Preview	Comments	Updated (UTC)
cal	⬜️ Ignored (Inspect)	Visit Preview		Apr 28, 2025 2:07pm
calcom-web-canary	⬜️ Ignored (Inspect)	Visit Preview		Apr 28, 2025 2:07pm

[github-actions]

E2E results are ready!

• Workflow #58383.1 latest results

[graphite-app]

Graphite Automations

"Add consumer team as reviewer" took an action on this PR • (04/29/25)

1 reviewer was added to this PR based on Keith Williams's automation.

[mrge-io]

mrge found 14 issues across 29 files. View them in mrge.io

[hbjORbj]

Lets go!