Skip badge update when commit message contains [skip ci], preventing
the workflow's own commits from re-triggering the workflow.
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
Adds GitHub Stars badge and "Updated with Claude Code" badge to README.
New workflow auto-updates the Claude Code badge with commit SHA and
timestamp on each push to master/v2-dev.
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>