fix: 统一知识库卡片布局

- FAQ 与文档知识库统一使用标题下方类型标签

- 同排卡片底部操作栏保持贴底对齐

easyflow-ui-admin/app/src/views/ai/documentCollection/DocumentCollection.vue

@@ -696,6 +696,7 @@ function changeCategory(category: any) {
               :primary-action="primaryAction"
               :actions="actions"
               tag-field="collectionType"
+              tag-layout="stacked"
               :tag-map="collectionTypeLabelMap"
             >
               <template #corner="{ item }">