Document that both backend/package.json and frontend/package.json
must be updated before tagging a release, since the About modal
reads versions from these files.
Create dedicated GitHub Copilot agent for release management with
4 tasks: branch/PR workflow, version determination, release execution,
and release notes writing.
Move release-specific instructions (workflow, release notes format,
breaking changes) from copilot-instructions.md to the agent file
to keep concerns separated.
Daniel Volz