isTeamMember check fix for new activity automation

[epipav]

Changes proposed ✍️

• We were checking attributes.isTeamMember.custom, instead we should check attributes.isTeamMember.default

What

🤖 Generated by Copilot at 06b5a6c

Fixed a bug in newActivityWorker.ts that caused team member activities to be skipped. Changed the logic to use the default property of the isTeamMember attribute instead of the custom property.
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🤖 Generated by Copilot at 06b5a6c

shouldProcessActivity
uses default now, not custom
bug fixed in autumn

Why

How

🤖 Generated by Copilot at 06b5a6c

• Fix bug where team member activities were not processed correctly by using the default property of the isTeamMember attribute (link)

Checklist ✅

• Label appropriately with Feature, Improvement, or Bug.
• Add screehshots to the PR description for relevant FE changes
• New backend functionality has been unit-tested.
• API documentation has been updated (if necessary) (see docs on API documentation).
• Quality standards are met.