Simplify check for defaults and add another test

client/src/utils/__tests__/schemaUtils.test.ts

@@ -108,6 +108,12 @@ describe("generateDefaultValue", () => {
       },
     });
   });
+
+  test("uses schema default value when provided", () => {
+    expect(generateDefaultValue({ type: "string", default: "test" })).toBe(
+      "test",
+    );
+  });
 });
 
 describe("formatFieldLabel", () => {

client/src/utils/schemaUtils.ts

@@ -8,8 +8,7 @@ import { JsonObject } from "./jsonPathUtils";
  */
 export function generateDefaultValue(schema: JsonSchemaType): JsonValue {
   if ("default" in schema) {
-    // Ensure we don't return undefined even if schema.default is undefined
-    return schema.default === undefined ? null : schema.default;
+    return schema.default;
   }
 
   if (!schema.required) {