fix: update list_operator app_nodes assignment to reflect actual length

src/data.rs

@@ -1107,7 +1107,7 @@ impl BrainData {
                 pubkey: op.key().to_string(),
                 escrow: op.escrow / 1_000_000_000,
                 email: op.email.clone(),
-                app_nodes: 0,
+                app_nodes: op.app_nodes.len() as u64,
                 vm_nodes: op.vm_nodes.len() as u64,
                 reports: self.total_operator_reports(op.key()) as u64,
             })