update 优化默认部门，不允许删除

ruoyi-common/ruoyi-common-core/src/main/java/org/dromara/common/core/constant/SystemConstants.java

@@ -77,4 +77,9 @@ public interface SystemConstants {
      */
     String ROOT_DEPT_ANCESTORS = "0";
 
+    /**
+     * 默认部门 ID
+     */
+    Long DEFAULT_DEPT_ID = 100L;
+
 }

ruoyi-modules/ruoyi-system/src/main/java/org/dromara/system/controller/system/SysDeptController.java

@@ -113,6 +113,9 @@ public class SysDeptController extends BaseController {
     @Log(title = "部门管理", businessType = BusinessType.DELETE)
     @DeleteMapping("/{deptId}")
     public R<Void> remove(@PathVariable Long deptId) {
+        if (SystemConstants.DEFAULT_DEPT_ID.equals(deptId)) {
+            return R.warn("默认部门,不允许删除");
+        }
         if (deptService.hasChildByDeptId(deptId)) {
             return R.warn("存在下级部门,不允许删除");
         }

ruoyi-modules/ruoyi-workflow/src/main/java/org/dromara/workflow/service/impl/FlwTaskAssigneeServiceImpl.java

@@ -106,15 +106,10 @@ public class FlwTaskAssigneeServiceImpl implements IFlwTaskAssigneeService, Hand
             .map(entry -> {
                 String storageId = entry.getKey();
                 Pair<TaskAssigneeEnum, Long> parsed = entry.getValue();
-                String handlerName = "格式错误";
-                if (parsed != null) {
-                    Map<Long, String> nameMapping = nameMap.getOrDefault(parsed.getKey(), Collections.emptyMap());
-                    handlerName = nameMapping.getOrDefault(parsed.getValue(), "未知名称");
-                }
-                HandlerFeedBackVo backVo = new HandlerFeedBackVo();
-                backVo.setStorageId(storageId);
-                backVo.setHandlerName(handlerName);
-                return backVo;
+                String handlerName = (parsed == null) ? null
+                    : nameMap.getOrDefault(parsed.getKey(), Collections.emptyMap())
+                    .get(parsed.getValue());
+                return new HandlerFeedBackVo(storageId, handlerName);
             }).toList();
     }