feat(i18n): internationalization across the API and both React apps - #1344

Node.js 20 is deprecated. The following actions target Node.js 20 but are being forced to run on Node.js 24: github/codeql-action/analyze@v3, github/codeql-action/init@v3. For more information see: https://github.blog/changelog/2025-09-19-deprecation-of-node-20-on-github-actions-runners/

Cannot retrieve the full diff because there are too many (300) changed files in the pull request.

Cannot build an overlay database because build-mode is set to "undefined" instead of "none". Falling back to creating a normal full database instead.

1 issue was detected with this workflow: Please specify an on.push hook to analyze and see code scanning alerts from the default branch on the Security tab.