If documents have no title display uri alone, ag-ui-example

examples/ag-ui-research/frontend/components/DocumentSelector.tsx

@@ -298,6 +298,7 @@ export default function DocumentSelector({
 												}}
 											/>
 											<div style={{ flex: 1, minWidth: 0 }}>
+												{doc.title && (
 													<div
 														style={{
 															fontSize: "0.875rem",
@@ -308,12 +309,18 @@ export default function DocumentSelector({
 															textOverflow: "ellipsis",
 														}}
 													>
-													{doc.title || "Untitled"}
+														{doc.title}
 													</div>
+												)}
 												<div
 													style={{
-														fontSize: "0.7rem",
+														fontSize: doc.title ? "0.7rem" : "0.875rem",
-														color: "#718096",
+														fontWeight: doc.title
+															? "400"
+															: isSelected
+																? "600"
+																: "400",
+														color: doc.title ? "#718096" : "#2d3748",
 														whiteSpace: "nowrap",
 														overflow: "hidden",
 														textOverflow: "ellipsis",