fix: 修复管理端前端 lint 与构建问题

- 收敛 easyflow-ui-admin 的 lint、格式和类型问题

- 修正 demo 页面与管理端前端构建失败点

- 验证 pnpm lint 与 pnpm build 均已通过

easyflow-ui-admin/app/src/views/datacenter/DatacenterWorkspace.vue

@@ -475,24 +475,24 @@ onBeforeUnmount(() => {
   flex-direction: column;
   width: 100%;
   min-height: 0;
-  margin-top: 0;
   padding-top: 12px;
-  background: transparent;
+  margin-top: 0;
   overflow: hidden;
+  background: transparent;
 }
 
 .workspace-toolbar {
   display: flex;
+  gap: 12px;
   align-items: center;
   justify-content: flex-start;
-  gap: 12px;
   padding: 0 0 12px;
 }
 
 .toolbar-left {
   display: flex;
-  align-items: center;
   gap: 8px;
+  align-items: center;
 }
 
 .toolbar-button {
@@ -501,8 +501,8 @@ onBeforeUnmount(() => {
 }
 
 .workspace-body {
-  width: 100%;
   flex: 1;
+  width: 100%;
   min-height: 0;
   overflow: hidden;
   background: transparent;
@@ -519,13 +519,13 @@ onBeforeUnmount(() => {
 }
 
 .workspace-body :deep([data-panel-resize-handle-enabled]::before) {
-  content: '';
   position: absolute;
   top: 20px;
   bottom: 20px;
   left: 50%;
   width: 1px;
-  background: hsl(var(--border) / 0.32);
+  content: '';
+  background: hsl(var(--border) / 32%);
   transform: translateX(-50%);
 }