test: SDPT and SDLT with BlockNodes (26174)

[alex-kuzmin-hg]

Description:
Implemented BlockNode addition to SDPT and SDLT

Related issue(s):

Fixes #26174

Notes for reviewer:

Checklist

• Documented (Code comments, README, etc.)
• Tested (unit, integration, etc.)

[lfdt-bot]

✅ Snyk checks have passed. No issues have been found so far.

Status	Scan Engine	Critical	High	Medium	Low	Total (0)
✅	Open Source Security	0	0	0	0	0 issues

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[alex-kuzmin-hg]

Good SDLT: https://github.com/hiero-ledger/hiero-consensus-node/actions/runs/31558155045
and SDPT: https://github.com/hiero-ledger/hiero-consensus-node/actions/runs/31721371311
smoke runs

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.

@@            Coverage Diff            @@
##               main   #26791   +/-   ##
=========================================
  Coverage     70.44%   70.44%           
  Complexity    11671    11671           
=========================================
  Files          2583     2583           
  Lines        108291   108291           
  Branches      12112    12111    -1     
=========================================
  Hits          76286    76286           
  Misses        28022    28022           
  Partials       3983     3983           

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