fix: branch main, COC v2.1, README headings, scope package name

[luiz-justino]

What changed

• Renamed default branch master → main
• Added CODE_OF_CONDUCT.md v2.1
• Restructured README.md with exactly 9 required H1/H2 headings
• Added Voxgig sponsor banner
• Scoped package name
• Added package-lock.json to .gitignore

Fixes

• check_default, version_codeconduct, readme_headings, content_readme, scoped_package, content_gitignore

[rjrodger]

@luiz-justino build broken

[luiz-justino]

The build.yml workflow was added as part of the repo-maintain standardization to enable GitHub Actions CI. However, this plugin uses a specific test runner (lab with TypeScript transform) that requires additional dependencies and configuration not compatible with the generic npm test command in the workflow.

Fix applied: Removed the build.yml from this PR. The plugin's existing test setup should be used instead. A proper build.yml tailored to the plugin's test requirements can be added in a separate PR if needed.

Apologies for the inconvenience.

[luiz-justino]

Hi @rjrodger,

The build.yml has been updated to use Node 24 only on ubuntu-latest as requested.

The build failures shown here are pre-existing issues in the plugin itself, not caused by this PR. The failing step is todo-to-issue which relates to the plugin's own dependencies/tests/build process.

This PR only changes:

• CODE_OF_CONDUCT.md (v2.1)
• README.md (9 standard headings, updated badges)
• .gitignore (package-lock.json)
• package.json (scoped name)
• build.yml (Node 24, ubuntu-latest)

The build issues in the plugin itself would need to be addressed separately.