feat: 完善知识库批量导入与公共 API

- 新增批量异步导入、状态查询、失败重试与中断恢复链路

- 拆分知识库读取、导入、维护权限并完善 Public API 契约

- 补充数据库迁移、管理端交互、接口说明与相关测试

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

@@ -13,6 +13,7 @@ import { api } from '#/api/request';
 import bookIcon from '#/assets/ai/knowledge/book.svg';
 import HeaderSearch from '#/components/headerSearch/HeaderSearch.vue';
 import { createLazyComponentController } from '#/utils/lazy-component';
+import DocumentImportBatchStatus from '#/views/ai/documentCollection/DocumentImportBatchStatus.vue';
 
 const ChunkDocumentTable = defineAsyncComponent(
   () => import('#/views/ai/documentCollection/ChunkDocumentTable.vue'),
@@ -188,6 +189,7 @@ const headerButtons = [
 ];
 const panelMode = ref<'chunk' | 'list' | 'process'>('list');
 const documentTableRef = ref();
+const batchStatusRefreshKey = ref(0);
 const documentTitle = ref('');
 const handleSearch = (searchParams: string) => {
   documentTableRef.value?.search?.(searchParams);
@@ -227,6 +229,7 @@ const backDoc = async () => {
   documentTitle.value = '';
   await nextTick();
   documentTableRef.value?.reload?.();
+  batchStatusRefreshKey.value += 1;
 };
 </script>
 
@@ -273,7 +276,16 @@ const backDoc = async () => {
                 :buttons="canManageCurrentKnowledge ? headerButtons : []"
                 @search="handleSearch"
                 @button-click="handleButtonClick"
-              />
+              >
+                <template #middle>
+                  <DocumentImportBatchStatus
+                    :knowledge-id="knowledgeId"
+                    :manageable="canManageCurrentKnowledge"
+                    :refresh-key="batchStatusRefreshKey"
+                    @continued="backDoc"
+                  />
+                </template>
+              </HeaderSearch>
             </div>
             <div v-if="panelMode === 'chunk'" class="doc-sub-back">
               <ElButton @click="backDoc">
@@ -343,6 +355,7 @@ const backDoc = async () => {
       :is="ImportKnowledgeDocFileComponent"
       v-if="ImportKnowledgeDocFileComponent"
       ref="importDocModalRef"
+      enable-bulk-auto
       :knowledge-id-prop="String(knowledgeId)"
       @imported="backDoc"
     />
@@ -386,6 +399,10 @@ const backDoc = async () => {
   margin: 0 auto;
 }
 
+.doc-header :deep(.search-middle) {
+  flex: 1 1 360px;
+}
+
 .doc-content {
   display: flex;
   flex-direction: column;