magpie-security-issue-fix

Attempt to fix a security issue tracked in <tracker> by implementing the change in a public <upstream> PR. Runs security-issue-sync first to reconcile the issue's state, proposes an implementation plan, and on explicit user confirmation writes the change, opens a PR from the user's fork, and updates the <tracker> tracking issue. Public PR content is scrubbed so it does not reveal the CVE, the security nature of the…