Polishing.

See #695

mongodb/aot-optimization/src/main/java/example/springdata/aot/UserProjection.java

@@ -0,0 +1,28 @@
+/*
+ * Copyright 2025 the original author or authors.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package example.springdata.aot;
+
+import java.time.Instant;
+
+/**
+ * @author Christoph Strobl
+ * @since 2025/01
+ */
+public interface UserProjection {
+
+    String getUsername();
+    Instant getRegistrationDate();
+}