fix: Toggle summary visibility at start of render

Co-authored-by: aider (gemini/gemini-2.5-pro) <aider@aider.chat>

frontend/app.js

@@ -95,6 +95,11 @@ function addItem(file){
 }
 
 function render(){
+  const summaryEl = document.getElementById('summary');
+  if (summaryEl) {
+    summaryEl.classList.toggle('hidden', items.length === 0);
+  }
+
   const itemsEl = document.getElementById('items');
   itemsEl.innerHTML = items.map(it => `
     <div class="rounded-2xl border bg-white dark:bg-gray-800 dark:border-gray-700 p-4 shadow-sm transition-colors">
@@ -136,11 +141,6 @@ function render(){
     });
   } catch {}
 
-  const summaryEl = document.getElementById('summary');
-  if (summaryEl) {
-    summaryEl.classList.toggle('hidden', items.length === 0);
-  }
-
   const c = {queued:0,uploading:0,done:0,dup:0,err:0};
   for(const it of items){
     if(['queued','checking'].includes(it.status)) c.queued++;