feat(FN-4608): complete Step 3 — add reliability details and drill-downs

Fusion-Task-Id: FN-4608
Fusion-Task-Lineage: 6cabc509-38a1-4cb8-be6f-51c53d5753ff

packages/dashboard/app/components/ReliabilityView.css

@@ -32,6 +32,13 @@
   gap: var(--space-lg);
 }
 
+.reliability-section-header {
+  display: flex;
+  align-items: center;
+  justify-content: space-between;
+  gap: var(--space-sm);
+}
+
 .reliability-table {
   width: 100%;
   border-collapse: collapse;
@@ -56,6 +63,23 @@
   color: var(--text-muted);
 }
 
+.reliability-details {
+  margin-top: var(--space-sm);
+}
+
+.reliability-details summary {
+  color: var(--text-muted);
+  cursor: pointer;
+}
+
+.reliability-details-content {
+  margin-top: var(--space-sm);
+  display: flex;
+  flex-direction: column;
+  gap: var(--space-xs);
+  color: var(--text-muted);
+}
+
 .reliability-histogram {
   list-style: none;
   margin: var(--space-sm) 0 0;
@@ -92,4 +116,9 @@
   .reliability-grid {
     grid-template-columns: minmax(0, 1fr);
   }
+
+  .reliability-section-header {
+    flex-direction: column;
+    align-items: flex-start;
+  }
 }