[EC3-2572] Publish react-codemirror to GitHub Packages

[EshtiakAlam]

Description

Publishes @optimizely/react-codemirror to the GitHub Packages npm registry as part of the jFrog decommission (EC3-1515). The package was previously hosted on JFrog Artifactory; this migrates publishing to GitHub Packages with no version bump (stays 1.0.1) and no source-logic changes.

Two reference points to keep distinct:

• vs the cloned repo base (this diff): the repo's package.json carried the unscoped name react-codemirror. This PR corrects it to the scoped @optimizely/react-codemirror so it matches the name the package was already published under on jFrog, repoints repository.url, and adds publishConfig.
• vs the existing jFrog react-codemirror-1.0.1.tgz: the produced tarball is verified equivalent —
  • Identical file list (14 files).
  • All shared files byte-identical (lib/, dist/, src/, example/, README, LICENSE, etc.).
  • package.json differs only in repository.url (repointed to optimizely/react-codemirror, required so GH Packages links the package to this repo) and an added publishConfig (required to route the publish). The package name already matched jFrog (@optimizely/react-codemirror), so there is no name delta relative to the jFrog tarball — the name change is only relative to the repo base above.

Note on homepage/bugs: these intentionally remain pointed at JedWatson/react-codemirror. Upstream stays the canonical source for docs/issues for this fork (no source changes here); only repository.url is repointed, as GH Packages requires it to associate the package with this repo.

Type of change

• Bug fix (non-breaking change which fixes an issue)
• New feature (non-breaking change which adds functionality)
• Improvement in tooling
• Optimization
• Breaking change (fix or feature that would cause existing functionality to not work as expected)

Changelist

• Correct package name (react-codemirror → @optimizely/react-codemirror) to match the prior jFrog-published name, repoint repository.url to optimizely/react-codemirror, and add publishConfig → npm.pkg.github.com.
• Add .npmignore so the .github/ tooling is excluded from the published tarball (keeps payload byte-identical to jFrog).
• Add release-triggered publish.yml workflow (mirrors the optly-components pattern): publishes via GITHUB_TOKEN on GitHub Release; workflow_dispatch runs a dry-run. Guards: tag format, tag reachable from the repo's default branch, and package.json version matches the tag. No build/install step — lib/ and dist/ are committed, so it publishes the existing artifacts as-is.

Test plan

• Test A: Run the workflow via workflow_dispatch and confirm the --dry-run publish is green (packs the expected 14 files).
• Test B: Cut GitHub Release v1.0.1 and confirm @optimizely/react-codemirror@1.0.1 appears on the GitHub Packages registry and installs in a downstream consumer.

References

Jira Issues

EC3-2572

[Copilot]

Pull request overview

This PR migrates publishing of @optimizely/react-codemirror from the prior Artifactory/jFrog setup to GitHub Packages by updating package metadata and adding a release-driven GitHub Actions publish workflow.

Changes:

• Updates package.json to point repository.url at optimizely/react-codemirror, adds publishConfig.registry, and scopes the package name.
• Adds .npmignore to exclude repository tooling (.github/) from the published tarball.
• Adds a publish.yml workflow to publish on GitHub Release (and dry-run on workflow_dispatch) with tag/version guards.

Reviewed changes

Copilot reviewed 3 out of 3 changed files in this pull request and generated 3 comments.

File	Description
package.json	Adjusts npm package metadata for GitHub Packages publishing and repository association.
.npmignore	Excludes .github/ from npm package contents to keep the published payload clean.
.github/workflows/publish.yml	Adds automated release-based publishing to GitHub Packages (plus manual dry-run).

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