[management] Remove deleted user peers from groups on user deletion

[bcmmbaga]

Describe your changes

Issue ticket number and link

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Checklist

• Is it a bug fix
• Is a typo/documentation fix
• Is a feature enhancement
• It is a refactor
• Created tests that fail without the change (if possible)
• Extended the README / documentation, if necessary

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[Copilot]

Pull Request Overview

This PR refactors peer deletion to centralize group cleanup logic, ensuring deleted peers are consistently removed from all groups in one place.

• Removed redundant group removal code from DefaultAccountManager.DeletePeer
• Added group removal logic inside deletePeers to handle both single and multiple peer deletions

Comments suppressed due to low confidence (1)

management/server/peer.go:1508

• Add unit or integration tests to verify that deletePeers correctly removes peers from all associated groups, covering both single-peer and multi-peer deletion scenarios.

		groups, err := transaction.GetPeerGroups(ctx, store.LockingStrengthUpdate, accountID, peer.ID)

[sonarqubecloud]

Quality Gate passed

Issues
0 New issues
0 Accepted issues

Measures
0 Security Hotspots
0.0% Coverage on New Code
0.0% Duplication on New Code

See analysis details on SonarQube Cloud