Add @tostring to Movie entity and align ApiResponse with record accessors

Add @tostring(onlyExplicitlyIncluded = true) to Movie, including id,
title, and year for meaningful debug output. Rename ApiResponse methods
from JavaBean style (isSuccess/getTimestamp) to record accessor style
(success/timestamp) and drop the bridge methods from ErrorResponse and
SuccessResponse since records already generate matching accessors.

Author: ozgliderpilot

mflix/server/java-spring/src/main/java/com/mongodb/samplemflix/model/Movie.java

@@ -7,6 +7,7 @@
 import lombok.EqualsAndHashCode;
 import lombok.Getter;
 import lombok.Setter;
+import lombok.ToString;
 import org.bson.types.ObjectId;
 import org.springframework.data.annotation.Id;
 import org.springframework.data.mongodb.core.mapping.Document;
@@ -19,11 +20,12 @@
  * for awards, IMDB ratings, and Tomatoes ratings.
  *
  * <p>Note: We use Lombok annotations to reduce boilerplate code:
- * - @Getter @Setter @EqualsAndHashCode: Generates getters, setters, equals, and hashCode
+ * - @Getter @Setter @ToString @EqualsAndHashCode: Generates getters, setters, toString, equals, and hashCode
  * - @Builder: Provides a fluent builder pattern for object construction
  */
 @Getter
 @Setter
+@ToString(onlyExplicitlyIncluded = true)
 @EqualsAndHashCode(onlyExplicitlyIncluded = true)
 @Builder
 @Document(collection = "movies")
@@ -77,17 +79,20 @@ private Fields() {
      */
     @JsonProperty("_id")
     @Id
+    @ToString.Include
     @EqualsAndHashCode.Include
     private ObjectId id;
 
     /**
      * Movie title (required field).
      */
+    @ToString.Include
     private String title;
 
     /**
      * Release year.
      */
+    @ToString.Include
     private Integer year;
 
     /**

mflix/server/java-spring/src/main/java/com/mongodb/samplemflix/model/response/ApiResponse.java

@@ -17,12 +17,12 @@ public interface ApiResponse {
      *
      * @return true for successful responses, false for error responses
      */
-    boolean isSuccess();
+    boolean success();
 
     /**
-     * Gets the timestamp when the response was generated.
+     * Returns the timestamp when the response was generated.
      *
      * @return ISO 8601 formatted timestamp string
      */
-    String getTimestamp();
+    String timestamp();
 }

mflix/server/java-spring/src/main/java/com/mongodb/samplemflix/model/response/ErrorResponse.java

@@ -50,16 +50,6 @@ public static class ErrorResponseBuilder {
         private String timestamp = Instant.now().toString();
     }
 
-    @Override
-    public boolean isSuccess() {
-        return success;
-    }
-
-    @Override
-    public String getTimestamp() {
-        return timestamp;
-    }
-
     /**
      * Nested class for detailed error information.
      */

mflix/server/java-spring/src/main/java/com/mongodb/samplemflix/model/response/SuccessResponse.java

@@ -53,16 +53,6 @@ public static class SuccessResponseBuilder<T> {
         private String timestamp = Instant.now().toString();
     }
 
-    @Override
-    public boolean isSuccess() {
-        return success;
-    }
-
-    @Override
-    public String getTimestamp() {
-        return timestamp;
-    }
-
     /**
      * Nested class for pagination metadata.
      */