代码优化支持reasoning_content为空或空字符串的时候结束思考

modules/cms-ai/src/main/java/com/jeesite/modules/cms/ai/config/WebClientThinkConfig.java

@@ -92,7 +92,7 @@ public class WebClientThinkConfig {
 								}
 								String reasoningContent = (String) delta.get("reasoning_content");
 								String content = (String) delta.get("content");
-								if (reasoningContent != null) {
+								if (StringUtils.isNotBlank(reasoningContent)) {
 									if (!thinkingFlag.get()) {
 										thinkingFlag.set(true);
 										delta.put("content", "<think>\n" + reasoningContent);