<!-- Customize this skill and select save to override its behavior. Delete that copy to restore the built-in behavior. -- Update Branch Rebase the current session branch onto the latest upstream so the work stays grounded in origin. Workflow 1. If there are uncommitted changes, use the skill to commit them first. 2. Fetch the latest upstream and rebase onto it: Use the appropriate base branch if it is not . Conflict Resolution When conflicts arise, upstream always wins : - Never alter upstream logic, APIs, or patterns to accommodate session changes. - Adapt session work to fit the new upstrea…