sourceRef.current in useMemo may produce stale matchedTemplate

[GeneralJerel]

Problem

In save-template-overlay.tsx, the matchedTemplate useMemo reads sourceRef.current to find the source template from the apply flow. However, React refs don't trigger re-renders when they change, so the memo's dependency array ([html, agent.state?.templates]) won't capture changes to sourceRef.current.

In practice this works because html or templates changes trigger recomputation, but it's technically not guaranteed — if the ref is set after the last html/templates change, the matched template badge could show stale data.

Suggested fix

Either:

• Store the source template info in state instead of a ref (triggers re-render on change)
• Add the source ID as an explicit dependency by extracting it to a state variable

Files

• apps/app/src/components/generative-ui/save-template-overlay.tsx

From PR #20 review