feat: 收敛AI资源发布审批生命周期

- 统一工作流、知识库、聊天助手的发布、重新发布、下线与删除链路

- 收敛审批编排、生命周期状态机与展示态，补齐审批管理和快照预览

- 调整审批管理权限模型为单入口页面加内部按钮权限

easyflow-ui-admin/app/src/views/system/approval/ApprovalFlowModal.vue

@@ -31,7 +31,7 @@ defineExpose({
 });
 
 type ResourceType = '' | 'BOT' | 'KNOWLEDGE' | 'WORKFLOW';
-type ActionType = '' | 'DELETE' | 'PUBLISH';
+type ActionType = '' | 'DELETE' | 'OFFLINE' | 'PUBLISH';
 type AssigneeType = 'ROLE' | 'USER';
 type ScopeType = 'CATEGORY' | 'DEPT';
 type FlowStatus = 'DISABLED' | 'ENABLED';
@@ -77,6 +77,7 @@ const RESOURCE_OPTIONS = [
 
 const ACTION_OPTIONS = [
   { label: $t('approval.action.publish'), value: 'PUBLISH' },
+  { label: $t('approval.action.offline'), value: 'OFFLINE' },
   { label: $t('approval.action.delete'), value: 'DELETE' },
 ];