wip(handoff): start issue cleanup plan sections 1 and 2

Co-Authored-By: Codex <noreply@openai.com>

frontend/src/pages/ProceduralEditorPage.tsx

@@ -118,7 +118,7 @@ export function ProceduralEditorPage() {
     }
 
     return () => { reset() }
-  }, [id])
+  }, [id]) // eslint-disable-line react-hooks/exhaustive-deps -- editor init is keyed to route id; store actions are stable
 
   useEffect(() => {
     useProceduralEditorStore.getState().validate()