fix: dismissed end banner no longer flashes when a new run starts

web/app.js

@@ -221,9 +221,11 @@ function select(i, follow) {
 
 // ── event intake ─────────────────────────────────────
 function resetView() {
+  // Clear the old run before anything re-renders, or its ending banner flashes back up.
+  state.events = []; state.turns = []; state.selected = -1; state.follow = true;
   state.endingDismissed = false;
+  $("ending").hidden = true;
   stopReplay();
-  state.events = []; state.turns = []; state.selected = -1; state.follow = true;
   if (window.Lantern3D) window.Lantern3D.reset();
   $("timeline").replaceChildren();
   renderMind(null);
@@ -305,6 +307,7 @@ async function startRun(evt) {
   evt.preventDefault();
   const body = { task: $("task").value, seed: Number($("seed").value) || 0, use_lessons: $("lessons").checked };
   $("start").disabled = true;
+  $("ending").hidden = true;
   showNotice("");
   try {
     const { id } = await api("/api/runs", { method: "POST", headers: { "Content-Type": "application/json" }, body: JSON.stringify(body) });