Node hinting slo

[qrort]

Integration tests for ydb.WithPreferredNodeID functionality against a multinode cluster.

Pull request type

Please check the type of change your PR introduces:

• Bugfix
• Feature
• Code style update (formatting, renaming)
• Refactoring (no functional changes, no api changes)
• Build related changes
• Documentation content changes
• Other (please describe):

[github-actions]

summary

Inferred base version: v3.121.1
Suggested version: v3.121.2

[codecov-commenter]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 72.68%. Comparing base (2bd7589) to head (83b1a28).

Additional details and impacted files

@@            Coverage Diff             @@
##           master    #1972      +/-   ##
==========================================
- Coverage   73.96%   72.68%   -1.28%     
==========================================
  Files         395      395              
  Lines       34557    34523      -34     
==========================================
- Hits        25560    25093     -467     
- Misses       7875     8291     +416     
- Partials     1122     1139      +17     

Flag	Coverage Δ
experiment	?
go-1.21.x	72.64% <ø> (-0.14%)	⬇️
go-1.25.x	72.19% <ø> (-1.75%)	⬇️
integration	54.95% <ø> (-0.43%)	⬇️
macOS	47.35% <ø> (-0.03%)	⬇️
ubuntu	72.67% <ø> (-1.30%)	⬇️
unit	47.36% <ø> (-0.05%)	⬇️
windows	47.34% <ø> (-0.03%)	⬇️
ydb-24.4	54.14% <ø> (-0.42%)	⬇️
ydb-25.2	54.85% <ø> (-0.41%)	⬇️
ydb-latest	54.50% <ø> (-0.41%)	⬇️
ydb-nightly	?

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[github-actions]

🌋 SLO Test Results

Status: 🟡 7 workloads tested • 6 workloads with warnings

	Workload	Metrics	Regressions	Improvements	Links
🟡	native-table-over-query-service	8	0	0	Report • Check
🟡	native-query	8	0	0	Report • Check
🟡	database-sql-query	8	0	0	Report • Check
🟡	native-table	8	0	0	Report • Check
🟡	database-sql-table	8	0	0	Report • Check
🟡	native-bulk-upsert	8	0	0	Report • Check
🟢	native-node-hints	8	0	0	Report • Check

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