Pushes to main that change fxmanifest.lua compare the version against
the previous commit and publish a release only when it actually
changed, packaging the drag-drop community_bridge.zip with generated
notes. Tags and titles stay bare (0.13.4) to match existing releases,
and an existing-tag guard prevents re-announcing a shipped version.
Uses RELEASE_PAT when configured so the release-published Discord
webhook still fires; GITHUB_TOKEN-created releases do not trigger it.
Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>