[mcosgriff]

• Replace timezone.utc with datetime.UTC in examples, demo INST2 procedures and tsdb integration tests, dropping unused imports
• Replace asyncio.TimeoutError with the builtin TimeoutError it aliases since 3.11, in host_interface_microservice and tests
• Relock tools/generate_singleton_stubs.py.lock and ty_report.py.lock for requires-python >=3.11, removing the 3.10-only tomli

Co-Authored-By: Claude Opus 5.5 noreply@anthropic.com

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[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 79.83%. Comparing base (44249cd) to head (5d110b0).

Additional details and impacted files

@@                Coverage Diff                @@
##           drop-python-3.10    #4138   +/-   ##
=================================================
  Coverage             79.82%   79.83%           
=================================================
  Files                   907      907           
  Lines                 70039    70037    -2     
  Branches               2688     2687    -1     
=================================================
+ Hits                  55910    55911    +1     
+ Misses                13462    13460    -2     
+ Partials                667      666    -1     

Flag	Coverage Δ
frontend	67.26% <ø> (-0.07%)	⬇️
python	78.46% <ø> (+<0.01%)	⬆️
ruby-api	83.49% <ø> (+0.20%)	⬆️
ruby-backend	86.12% <ø> (ø)

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[sonarqubecloud]

Quality Gate failed

Failed conditions
9.5% Duplication on New Code (required ≤ 3%)

See analysis details on SonarQube Cloud