Keep mapping collapsed on reload

public/app.js

@@ -411,7 +411,7 @@ function renderMappingSources(data) {
     if (!data.mapped || !items.length) {
         setMappingStatus(data.message || "Mapping missing", "is-missing");
         mappingList.replaceChildren();
-        mappingDetails.open = true;
+        mappingDetails.open = false;
         return;
     }
     const enabledCount = items.filter((item) => item.enabled).length;
@@ -422,7 +422,7 @@ function renderMappingSources(data) {
         ? `Sources OK ✓ (${testedCount}/${enabledCount})`
         : data.message || `Sources problem (${testedCount}/${enabledCount})`;
     setMappingStatus(statusText, ready ? "is-ready" : testedCount > 0 ? "is-warning" : "is-missing");
-    mappingDetails.open = !ready || failedCount > 0;
+    mappingDetails.open = false;
     mappingList.replaceChildren(...items.map((item) => {
         const row = document.createElement("div");
         row.className = `mapping-source-row${item.enabled ? "" : " is-disabled"}`;