feat(vertex_handler): Improve new vertex log

[msbrogli]

Motivation

As a node operator, having access to detailed log information is crucial for understanding the behavior of the system. Currently, log entries for block and tx events do not specify whether those blocks or transactions are valid or have been voided. This lack of clarity can create confusion—one might see multiple block log entries and incorrectly assume that mining is proceeding normally, when in fact those blocks could be voided.

Acceptance Criteria

1. Update the log messages so they explicitly differentiate between voided and non-voided vertices.

Checklist

• If you are requesting a merge into master, confirm this code is production-ready and can be included in future releases as soon as it gets merged

[github-actions]

Bencher Report

Branch	feat/improve-new-vertex-log
Testbed	ubuntu-22.04

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Benchmark	Latency	Benchmark Result minutes (m) (Result Δ%)	Lower Boundary minutes (m) (Limit %)	Upper Boundary minutes (m) (Limit %)
sync-v2 (up to 20000 blocks)	📈 view plot 🚷 view threshold	1.62 m (-0.97%) Baseline: 1.63 m	1.47 m (90.88%)	1.80 m (90.03%)

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[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 84.42%. Comparing base (91e2bd8) to head (64fdaed).

Additional details and impacted files

@@            Coverage Diff             @@
##           master    #1224      +/-   ##
==========================================
- Coverage   84.47%   84.42%   -0.06%     
==========================================
  Files         320      320              
  Lines       24559    24563       +4     
  Branches     3762     3764       +2     
==========================================
- Hits        20747    20738       -9     
- Misses       3077     3085       +8     
- Partials      735      740       +5     

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