✨Feat: 完成 LLM 接入

src/main/java/com/wonderland/stardewvalley/ai/ChatUtil.java

@@ -0,0 +1,25 @@
+package com.wonderland.stardewvalley.ai;
+
+import jakarta.annotation.Resource;
+import org.springframework.ai.chat.client.ChatClient;
+import org.springframework.stereotype.Service;
+
+@Service
+public class ChatUtil {
+
+    private final ChatClient chatClient;
+
+    public ChatUtil(ChatClient.Builder chatClientBuilder) {
+        this.chatClient = chatClientBuilder.build();
+    }
+
+    public String doChat(String background, String input) {
+        String content = chatClient
+                .prompt()
+                .system("你是一个AI助手，请根据背景和输入生成回复")
+                .user("[BackGround]: " + background + "\n[Input]: " + input)
+                .call()
+                .content();
+        return content;
+    }
+}