[client] Carry the peer's actual state with the notification.

[pappz]

Describe your changes

This PR addresses an unnecessary invocation of GetStates in a separate thread during notification handling. The notifier now provides the relevant state data directly with each notification, eliminating the need for redundant or parallel state queries. This simplifies the logic, reduces potential race conditions.

Changes:

• Removed separate thread execution of GetStates during notifications.
• Updated notification handler to rely on state data included in the notification payload.

Issue ticket number and link

Stack

Checklist

• [x] 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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[sonarqubecloud[bot]]

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

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