Convert ESLint config to flat config format

[Copilot]

• Analyze current .eslintrc configuration (old JSON format)
• Create new eslint.config.mjs file in flat config format
• Migrate all rules from .eslintrc to new format
• Handle deprecated/removed rules:
  • no-catch-shadow → removed (covered by no-shadow)
  • no-native-reassign → replaced with no-global-assign
  • handle-callback-err → removed (now in eslint-plugin-n)
  • newline-after-var → replaced with padding-line-between-statements (now includes var, let, const)
  • no-reserved-keys → removed
  • no-wrap-func → removed
  • no-new-object → removed (now no-object-constructor but not used here)
• Delete old .eslintrc file
• Run ESLint to verify the new configuration works
• Run code review and address feedback
• Run security scan (codeql_checker) - no issues found
• Change dotest version to ^2

Original prompt

Convert the current old ESlint config to the new config format. Create a PR with the changes.

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✨ Let Copilot coding agent set things up for you — coding agent works faster and does higher quality work when set up for your repo.

[fvdm]

@copilot In devdeps change the 'dotest' version to ^2. I don't publish breaking changes in point releases of 'dotest'.

[Copilot]

@copilot In devdeps change the 'dotest' version to ^2. I don't publish breaking changes in point releases of 'dotest'.

Done in dd473d1.

[coveralls]

coverage: 98.438%. remained the same
when pulling dd473d1 on copilot/update-eslint-config-format
into 167499f on develop.

[coveralls]

coverage: 98.438%. remained the same
when pulling 299ad2a on copilot/update-eslint-config-format
into 56ad0cc on develop.

[fvdm]

@copilot Rebase the PR branch to develop

[Copilot]

@copilot Rebase the PR branch to develop

I'm unable to rebase the PR branch because I don't have access to force push, which is required after a rebase operation. You'll need to perform the rebase manually with:

git checkout copilot/update-eslint-config-format
git rebase develop
git push --force-with-lease origin copilot/update-eslint-config-format

[fvdm]

@copilot Remove the '@eslint/js' and 'globals' devdeps. They are taken care of by 'dotest'.

[Copilot]

@copilot Remove the '@eslint/js' and 'globals' devdeps. They are taken care of by 'dotest'.

Done in 299ad2a.