add concurrent waitgroup ops

[ssd04]

Reasoning behind the pull request

• Add atomic operations for managing wait group
• Make data set in consensus atomically safer

Testing procedure

• Standard system test

Pre-requisites

Based on the Contributing Guidelines the PR author and the reviewers must check the following requirements are met:

• was the PR targeted to the correct branch?
• if this is a larger feature that probably needs more than one PR, is there a feat branch created?
• if this is a feat branch merging, do all satellite projects have a proper tag inside go.mod?

[codecov]

Codecov Report

❌ Patch coverage is 73.17073% with 11 lines in your changes missing coverage. Please review.
✅ Project coverage is 77.68%. Comparing base (6ea7662) to head (6060488).

Files with missing lines	Patch %	Lines
consensus/spos/worker.go	16.66%	4 Missing and 1 partial ⚠️
consensus/spos/bls/v2/subroundBlock.go	76.92%	2 Missing and 1 partial ⚠️
consensus/spos/consensusState.go	85.71%	2 Missing and 1 partial ⚠️

Additional details and impacted files

@@                 Coverage Diff                 @@
##           feat/testnet-fixes    #7895   +/-   ##
===================================================
  Coverage               77.68%   77.68%           
===================================================
  Files                     885      885           
  Lines                  125916   125940   +24     
===================================================
+ Hits                    97812    97841   +29     
+ Misses                  21624    21617    -7     
- Partials                 6480     6482    +2     

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[Copilot]

Pull request overview

This PR extends the SPoS consensus state API to support safer concurrent operations by adding (1) an atomic “set once” data setter and (2) a wait-group operation that applies Add() under the consensus state lock and returns the exact wait-group instance used. It then updates the BLS v2 subround block flow to use these APIs, adds tests, and introduces a panic-recovery guard in Worker.ReceivedHeader.

Changes:

• Add SetDataIfNotSet([]byte) bool and SignaturesWaitGroupAdd(delta int) *sync.WaitGroup to the ConsensusStateHandler API and implement them in ConsensusState.
• Update BLS v2 subroundBlock to use the new wait-group add API and to avoid overwriting consensus data if it is already set.
• Add unit tests covering the new consensus state methods; add a recover() guard in Worker.ReceivedHeader.

Reviewed changes

Copilot reviewed 6 out of 6 changed files in this pull request and generated 3 comments.

Show a summary per file

File	Description
testscommon/consensus/consensusStateMock.go	Extends consensus state mock with new interface methods.
consensus/spos/worker.go	Adds panic recovery wrapper to Worker.ReceivedHeader.
consensus/spos/interface.go	Extends ConsensusStateHandler with two new methods.
consensus/spos/consensusState.go	Implements atomic data set and locked wait-group add returning the applied instance.
consensus/spos/consensusState_test.go	Adds tests for SetDataIfNotSet and SignaturesWaitGroupAdd.
consensus/spos/bls/v2/subroundBlock.go	Switches to new wait-group add API; avoids double-setting consensus data on received header.

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[Copilot]

Pull request overview

Copilot reviewed 8 out of 8 changed files in this pull request and generated 1 comment.