chore: Replace wrapper ESLint script with error suppression

[Gudahtt]

Explanation

The wrapper script we've used to track warnings has been replaced by the built- in ESLint error suppression feature. This resolves some bugs we had with the wrapper script, and this new approach will be easier to roll out to new repositories.

Here is an example of CI run where there are stale suppressed errors: https://github.com/MetaMask/core/actions/runs/19367196104/job/55413407665
They can be automatically fixed with yarn lint:fix, or by running yarn eslint --prune-suppressions

References

Closes #6790
Fixes #5212

Checklist

• I've updated the test suite for new or updated code as appropriate
• I've updated documentation (JSDoc, Markdown, etc.) for new or updated code as appropriate
• I've communicated my changes to consumers by updating changelogs for packages I've changed, highlighting breaking changes as necessary
• I've prepared draft pull requests for clients and consumer packages to resolve any breaking changes

---

Note

Replaces the custom ESLint wrapper/thresholds with ESLint’s built-in suppressions, updating config, scripts, and deps accordingly.

• Tooling/CI:
  • Replace custom wrapper (scripts/run-eslint.ts) with ESLint built-in suppressions.
  • Add eslint-suppressions.json; remove eslint-warning-thresholds.json.
  • Update npm scripts: lint:eslint now runs eslint directly; lint:fix adds --prune-suppressions.
• ESLint Config (eslint.config.mjs):
  • Clean up temporary warn-only rules; disable jsdoc/check-tag-names in targeted contexts.
  • Promote key Jest rules to errors (jest/expect-expect, jest/no-alias-methods, jest/no-commented-out-tests, jest/no-disabled-tests).
  • Misc rule/env tweaks for node/jest/test helpers; remove package-specific overrides.
• Dependencies:
  • Remove chalk (no longer needed by the wrapper script).
• Codegen:
  • Minor lint directive adjustment in notification API schema.

^{Written by Cursor Bugbot for commit 2b65be5. This will update automatically on new commits. Configure here.}

[Gudahtt]

I'll do another pass later to re-enable rules we had "temporarily" disabled. I just wanted to get rid of the warnings in this pass.

[cryptodev-2s]

LGTM!