upgrade nodejs version

[sensuikan1973]

Auto-generated by create-pull-request

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[gemini-code-assist]

Code Review

This pull request updates the Node.js version in the .node-version file from 25.8.1 to 25.8.2. The reviewer noted that both the previous and new Node.js versions are invalid, which will cause issues with standard version managers and CI/CD pipelines. This indicates a potential misconfiguration in the automation generating these version updates.

[gemini-code-assist]

The version 25.8.2 specified in this file is not a valid public Node.js version. Standard Node.js version managers (e.g., nvm, asdf) will fail to install this version, which will likely break local development setups and CI/CD pipelines. The automation that generated this change appears to be misconfigured, as even the previous version 25.8.1 was not a valid Node.js version.

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 94.13%. Comparing base (55ea8e6) to head (6cf4699).
⚠️ Report is 3 commits behind head on main.

Additional details and impacted files

@@           Coverage Diff           @@
##             main    #2895   +/-   ##
=======================================
  Coverage   94.13%   94.13%           
=======================================
  Files          52       52           
  Lines        1483     1483           
=======================================
  Hits         1396     1396           
  Misses         87       87           

Flag	Coverage Δ
integration_test	65.00% <ø> (ø)
macos-latest	93.05% <ø> (ø)
ubuntu	93.59% <ø> (ø)
widget_test	90.22% <ø> (-0.07%)	⬇️
windows	93.45% <ø> (ø)

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