Playground: refocusing the command box after a step no longer scrolls the page to the top

playground/app.js

@@ -260,7 +260,7 @@
       await loadState(result.state_diff || []);
       renderBudget(result.budget);
     } catch (exc) { showError(exc.message); if (/BudgetExhausted/.test(exc.message)) { state.exhausted = true; $("send-button").disabled = true; } }
-    finally { setBusy(false); if (!state.exhausted) $("send-button").disabled = false; $("command-input").focus(); }
+    finally { setBusy(false); if (!state.exhausted) $("send-button").disabled = false; $("command-input").focus({ preventScroll: true }); }
   }
   const send = () => send_(state.play && $("command-input").value === state.play.steps[state.nextStep]?.text ? state.nextStep : undefined);
   function badge(text, cls) { return el("span", `badge ${cls || ""}`, text); }