feat(werewolf): add StructuredOutputReminder (#483)

## AgentScope-Java Version

1.0.7

## Description

feat(werewolf): add StructuredOutputReminder
## Checklist

Please check the following items before code is ready to be reviewed.

- [x]  Code has been formatted with `mvn spotless:apply`
- [x]  All tests are passing (`mvn test`)
- [x]  Javadoc comments are complete and follow project conventions
- [x] Related documentation has been updated (e.g. links, examples,
etc.)
- [x]  Code is ready for review

Author: LearningGp

agentscope-examples/werewolf-hitl/src/main/java/io/agentscope/examples/werewolf/web/WerewolfWebGame.java

@@ -28,6 +28,7 @@
 import io.agentscope.core.message.TextBlock;
 import io.agentscope.core.model.DashScopeChatModel;
 import io.agentscope.core.model.GenerateOptions;
+import io.agentscope.core.model.StructuredOutputReminder;
 import io.agentscope.core.pipeline.MsgHub;
 import io.agentscope.core.tool.Toolkit;
 import io.agentscope.examples.werewolf.GameConfiguration;
@@ -218,6 +219,7 @@ private GameState initializeGame() {
                                 .model(model)
                                 .memory(new InMemoryMemory())
                                 .toolkit(new Toolkit())
+                                .structuredOutputReminder(StructuredOutputReminder.PROMPT)
                                 .build();
             }