Add exclude attending and organizing from my communities events

[nabramow]

We already have attending and organizing as boolean params to the ListMyEvents query, but when my_communities=true it overrides it if the events we're attending or organizing are in our communities.

Therefore I'm adding exclude_attending for this, to try and make it as backward compatible as possible.

Testing

Explain how you tested this PR and give clear steps so the reviewer can replicate.

Backend checklist

• Added tests for any new code or added a regression test if fixing a bug
• Run the backend locally and it works
• Added migrations if there are any database changes, rebased onto develop if necessary for linear migration history

Web frontend checklist

• There are no console warnings when running the app
• Added tests where relevant
• Clicked around my changes running locally and it works
• Checked Desktop, Mobile and Tablet screen sizes

For maintainers

• Maintainers can push commits to my branch
• Maintainers can merge this PR for me

[vercel]

The latest updates on your projects. Learn more about Vercel for GitHub.

Project	Deployment	Actions	Updated (UTC)
couchers	Ready	Preview	Jun 8, 2026 11:07am

[CouchersBot]

Mobile

Install the Dev Tool (iOS via TestFlight, iOS Simulator, or Android .apk) here.

Scan the QR with your phone camera, or tap Open in Dev Tool on the device, to open this branch in the installed Dev Tool dev client.

iOS	Android
Open in Dev Tool	Open in Dev Tool

Deep links

iOS

couchers-devtool://expo-development-client/?url=https%3A%2F%2F96d0fe1f--ota.preview.couchershq.org%2Fios%2Fmanifest

Android

couchers-devtool://expo-development-client/?url=https%3A%2F%2F96d0fe1f--ota.preview.couchershq.org%2Fandroid%2Fmanifest

Web (Vercel)

View the Vercel web preview for this branch.

Backend

Schema	Schema diff	Sample emails

Other

Protos	Backend coverage	Web coverage

[nabramow]

@aapeliv I've addressed your comments now!

[github-actions]

📝 Release Notes

This PR does not need to be included in release notes.

Reason: This changes backend filtering for the 'My Events' query so community event lists can exclude events the user is already attending or organizing. While it affects event discovery behavior, the PR does not show a corresponding user-facing UI change and appears to be a relatively small API/filtering fix rather than a broadly noticeable feature or major bug fix.

🤖 Bot Debug Information

Model: couchers.openai.gpt-5.4
Decision: exclude
Reasoning: This changes backend filtering for the 'My Events' query so community event lists can exclude events the user is already attending or organizing. While it affects event discovery behavior, the PR does not show a corresponding user-facing UI change and appears to be a relatively small API/filtering fix rather than a broadly noticeable feature or major bug fix.