Show virtual parallel_fetch in UI and TUI

ui/src/api/types.ts

@@ -31,6 +31,7 @@ export interface Virtual {
   description: string;
   members: string[];
   managed_by: string;
+  parallel_fetch: boolean;
   created_at: string;
   updated_at: string;
 }

ui/src/pages/Virtuals.tsx

@@ -84,6 +84,9 @@ export function Virtuals() {
       {expanded && (
         <div className="virtual-detail-panel">
           <h3 className="section-label">Members of {expanded}</h3>
+          <p className="text-muted">
+            Parallel fetch: {virtuals.find(v => v.name === expanded)?.parallel_fetch ? 'enabled' : 'disabled'}
+          </p>
           <ul className="member-list">
             {virtuals
               .find(v => v.name === expanded)