fix: 优化获取报告交互

xinkeaboard-server/b2b2c-investment/src/main/java/com/slodon/b2b2c/investment/constant/InvestmentConst.java

@@ -52,7 +52,7 @@ public class InvestmentConst {
     public static final String LAST_PART_MARKER = "```\n" +
             "\n" +
             "## 参考资料";
-    public static final String FIRST_MARKER = "## 4. 引用";
+    public static final String FIRST_MARKER = "4. 引用";
 
     // dify 配置
     public static final String BEARER = "Bearer ";