[josephfusco]

Finishes the move from changesets to release-please (#820) by clearing out what the old flow left behind.

What changes

• Deletes .changeset/headless-documents-initial.md. feat(headless-documents): add a versioned document store plugin #818 merged it after the cutover, and nothing reads it. refactor: rename headless-documents to hwp-documents #829 deletes it too; whichever merges second resolves cleanly.
• get_plugin_slug.sh drops its release mode. Only the deleted create-release-branch.yml called it with release.
• The release commit type is gone from lint-pr.yml and CONTRIBUTING.md. It existed for the old "Release:" PRs. release-please titles its PRs chore(main): release ….
• Dependabot uses faustjs's commit prefixes. npm and Composer bumps use deps: for production dependencies and chore(deps-dev): for dev dependencies. A production dependency bump in a plugin now shows up under Dependencies in its release notes and triggers a patch release. Before, every bump was a hidden chore(deps).

Outside this PR

• The changeset-bot GitHub App still comments "No Changeset found" on PRs. It's an app installation, not repo code, so an org admin has to remove the repo from it.
• 31 stale release/<plugin>-<timestamp> branches from the old workflow are still on the remote. None have open PRs.

Use of AI Tools

AI assistance: Yes
Tool(s): Claude Code
Model(s): Claude Opus 5.5
Used for: Assisting with finding and removing leftovers from the changesets release flow.

[changeset-bot]

⚠️ No Changeset found

Latest commit: 6f01bcd

Merging this PR will not cause a version bump for any packages. If these changes should not result in a new version, you're good to go. If these changes should result in a version bump, you need to add a changeset.

Click here to learn what changesets are, and how to add one.

Click here if you're a maintainer who wants to add a changeset to this PR