feat: enhance useFetchData hook with polling functionality and improve task progress tracking

frontend/src/pages/DataCleansing/Home/components/TaskList.tsx

@@ -104,12 +104,14 @@ export default function TaskList() {
       key: "name",
       fixed: "left",
       width: 150,
+      ellipsis: true,
     },
     {
       title: "源数据集",
       dataIndex: "srcDatasetId",
       key: "srcDatasetId",
       width: 150,
+      ellipsis: true,
       render: (_, record: CleansingTask) => {
         return (
           <Button
@@ -128,6 +130,7 @@ export default function TaskList() {
       dataIndex: "destDatasetId",
       key: "destDatasetId",
       width: 150,
+      ellipsis: true,
       render: (_, record: CleansingTask) => {
         return (
           <Button
@@ -147,47 +150,68 @@ export default function TaskList() {
       key: "status",
       width: 100,
       render: (status: any) => {
-        return <Badge color={status.color} text={status.label} />;
+        return <Badge color={status?.color} text={status?.label} />;
       },
     },
-    {
-      title: "开始时间",
-      dataIndex: "startedAt",
-      key: "startedAt",
-      width: 180,
-    },
-    {
-      title: "结束时间",
-      dataIndex: "finishedAt",
-      key: "finishedAt",
-      width: 180,
-    },
     {
       title: "进度",
-      dataIndex: "progress",
-      key: "progress",
+      dataIndex: "process",
+      key: "process",
       width: 200,
       render: (progress: number) => (
         <Progress percent={progress} size="small" />
       ),
     },
     {
-      title: "创建时间",
-      dataIndex: "createdAt",
-      key: "createdAt",
-      width: 180,
+      title: "已处理文件数",
+      dataIndex: "finishedFileNum",
+      key: "finishedFileNum",
+      width: 150,
+      align: "right",
+      ellipsis: true,
+    },
+    {
+      title: "总文件数",
+      dataIndex: "totalFileNum",
+      key: "totalFileNum",
+      width: 150,
+      align: "right",
+      ellipsis: true,
     },
     {
       title: "执行耗时",
       dataIndex: "duration",
       key: "duration",
       width: 180,
+      ellipsis: true,
+    },
+    {
+      title: "开始时间",
+      dataIndex: "startedAt",
+      key: "startedAt",
+      width: 180,
+      ellipsis: true,
+    },
+    {
+      title: "结束时间",
+      dataIndex: "finishedAt",
+      key: "finishedAt",
+      width: 180,
+      ellipsis: true,
+    },
+    {
+      title: "创建时间",
+      dataIndex: "createdAt",
+      key: "createdAt",
+      width: 180,
+      ellipsis: true,
     },
     {
       title: "数据量变化",
       dataIndex: "dataSizeChange",
       key: "dataSizeChange",
       width: 180,
+      ellipsis: true,
       render: (_: any, record: CleansingTask) => {
         if (record.before !== undefined && record.after !== undefined) {
           return `${record.before} → ${record.after}`;
@@ -232,6 +256,7 @@ export default function TaskList() {
         onViewModeChange={setViewMode}
         showViewToggle={true}
         onReload={fetchData}
+        onClearFilters={() => setSearchParams({ ...searchParams, filter: {} })}
       />
       {/* Task List */}
       {viewMode === "card" ? (

frontend/src/pages/DataCleansing/cleansing.const.tsx

@@ -95,6 +95,7 @@ export const mapTask = (task: CleansingTask) => {
   const createdAt = formatDateTime(task.createdAt);
   return {
     ...task,
+    ...task.progress,
     createdAt,
     startedAt,
     finishedAt,
@@ -105,18 +106,18 @@ export const mapTask = (task: CleansingTask) => {
     before,
     after,
     statistics: [
-      { label: "进度", value: `${task.progress || 0}%` },
+      { label: "进度", value: `${task?.progress?.process || 0}%` },
       {
         label: "执行耗时",
         value: duration,
       },
       {
-        label: "处理前数据大小",
-        value: task.beforeSize ? formatBytes(task.beforeSize) : "--",
+        label: "已处理文件数",
+        value: task?.progress?.finishedFileNum || 0,
       },
       {
-        label: "处理后数据大小",
-        value: task.afterSize ? formatBytes(task.afterSize) : "--",
+        label: "总文件数",
+        value: task?.progress?.totalFileNum || 0,
       },
     ],
     lastModified: formatDateTime(task.createdAt),

frontend/src/pages/DataManagement/Home/DataManagement.tsx

@@ -158,6 +158,7 @@ export default function DatasetManagementPage() {
     {
       key: "delete",
       label: "删除",
+      danger: true,
       icon: <DeleteOutlined />,
       onClick: (item: Dataset) => handleDeleteDataset(item.id),
     },