护理看板中的护理级别统一固定展示4个字

src/main/java/thyyxxk/webserver/service/dashboard/DashboardService.java

@@ -55,6 +55,10 @@ public class DashboardService {
                     itm.setSickLevel(2);
                 }
             }
+            String n = itm.getNursingLevel();
+            if (StringUtil.notBlank(n) && n.length() > 4) {
+                itm.setNursingLevel(n.substring(0, 4));
+            }
         });
     }