refactor(tables): share parent column grid in expandable child rows

- llmodels/model-routes/cluster child rows use ExpandedRowGrid + Cell
  (auto-flow spans, no parent-key/grid-line math)
- define --seal-table-row-min-height token in global.less
- routes created_at column: span -> fixed width 180

src/pages/llmodels/components/instance/instance-item.tsx

@@ -1,6 +1,5 @@
 import { ListItem as WorkerListItem } from '@/pages/resources/config/types';
-import { AutoTooltip, RowChildren } from '@gpustack/core-ui';
-import { Col, Row } from 'antd';
+import { AutoTooltip, ExpandedRowGrid } from '@gpustack/core-ui';
 import dayjs from 'dayjs';
 import React from 'react';
 import { ModelInstanceListItem } from '../../config/types';
@@ -11,11 +10,17 @@ import DistributeInfoCell from '../instance-cells/distribute-info-cell';
 import DownloadingStatusCell from '../instance-cells/downloading-status-cell';
 import InstanceStatusCell from '../instance-cells/instance-status-cell';
 import NameCell from '../instance-cells/name-cell';
+
 interface InstanceItemProps {
   instanceData: ModelInstanceListItem;
   workerList: WorkerListItem[];
   modelData?: any;
   defaultOpenId: string;
+  // Column grid shared from the parent SealTable so this child row aligns
+  // its cells to the parent columns instead of guessing paddings.
+  gridTemplate?: string;
+  prefixWidth?: number;
+  columns?: any[];
   handleChildSelect: (val: string, item: ModelInstanceListItem) => void;
 }
 
@@ -24,79 +29,67 @@ const InstanceItem: React.FC<InstanceItemProps> = ({
   workerList,
   modelData,
   defaultOpenId,
+  gridTemplate,
+  prefixWidth = 0,
+  columns,
   handleChildSelect
 }) => {
+  // The child row shares the parent's column grid; cells flow left-to-right and
+  // only declare a span, so there is no dependency on parent column keys.
+  // Parent layout: name (1) | middle plugin/source region | replicas,
+  // created_at, operation (last 3). The middle absorbs whatever columns sit
+  // between name and replicas (cluster_id, source, any plugin column).
+  const columnCount = columns?.length ?? 0;
+  const middleSpan = Math.max(columnCount - 4, 1);
+
   return (
-    <div style={{ borderRadius: 'var(--ant-table-header-border-radius)' }}>
-      <RowChildren>
-        <Row
-          style={{ width: '100%', color: 'var(--ant-color-text-secondary)' }}
-          align="middle"
-        >
-          <Col
-            span={6}
-            style={{
-              paddingInline: 'var(--ant-table-cell-padding-inline)'
-            }}
-          >
-            <NameCell
-              record={instanceData}
-              modelData={modelData}
-              defaultOpenId={defaultOpenId}
-            ></NameCell>
-          </Col>
-          <Col span={7}>
-            <span
-              style={{
-                paddingLeft: '58px',
-                flexWrap: 'wrap',
-                gap: '8px'
-              }}
-              className="flex align-center"
-            >
-              <CPUOffloadingCell record={instanceData}></CPUOffloadingCell>
-              <DistributeInfoCell
-                record={instanceData}
-                workerList={workerList}
-              ></DistributeInfoCell>
-            </span>
-          </Col>
-          <Col span={4}>
-            <span
-              style={{ paddingLeft: '40px', gap: 4 }}
-              className="flex-center"
-            >
-              <InstanceStatusCell
-                record={instanceData}
-                onSelect={handleChildSelect}
-              />
-              <DownloadingStatusCell
-                backend={modelData?.backend}
-                distributed_servers={instanceData.distributed_servers}
-                workerList={workerList}
-                record={instanceData}
-              ></DownloadingStatusCell>
-            </span>
-          </Col>
-          <Col span={4}>
-            <span style={{ paddingLeft: 43 }} className="flex">
-              <AutoTooltip ghost>
-                {dayjs(instanceData.created_at).format('YYYY-MM-DD HH:mm:ss')}
-              </AutoTooltip>
-            </span>
-          </Col>
-          <Col span={3}>
-            <div style={{ paddingLeft: 36 }}>
-              <ActionsCell
-                record={instanceData}
-                modelData={modelData}
-                onSelect={handleChildSelect}
-              ></ActionsCell>
-            </div>
-          </Col>
-        </Row>
-      </RowChildren>
-    </div>
+    <ExpandedRowGrid
+      gridTemplate={gridTemplate}
+      prefixWidth={prefixWidth}
+      style={{ color: 'var(--ant-color-text-secondary)' }}
+    >
+      <ExpandedRowGrid.Cell span={1}>
+        <NameCell
+          record={instanceData}
+          modelData={modelData}
+          defaultOpenId={defaultOpenId}
+        ></NameCell>
+      </ExpandedRowGrid.Cell>
+      <ExpandedRowGrid.Cell
+        span={middleSpan}
+        style={{ flexWrap: 'wrap', gap: 8 }}
+      >
+        <CPUOffloadingCell record={instanceData}></CPUOffloadingCell>
+        <DistributeInfoCell
+          record={instanceData}
+          workerList={workerList}
+        ></DistributeInfoCell>
+      </ExpandedRowGrid.Cell>
+      <ExpandedRowGrid.Cell span={1} style={{ gap: 4 }}>
+        <InstanceStatusCell
+          record={instanceData}
+          onSelect={handleChildSelect}
+        />
+        <DownloadingStatusCell
+          backend={modelData?.backend}
+          distributed_servers={instanceData.distributed_servers}
+          workerList={workerList}
+          record={instanceData}
+        ></DownloadingStatusCell>
+      </ExpandedRowGrid.Cell>
+      <ExpandedRowGrid.Cell span={1}>
+        <AutoTooltip ghost>
+          {dayjs(instanceData.created_at).format('YYYY-MM-DD HH:mm:ss')}
+        </AutoTooltip>
+      </ExpandedRowGrid.Cell>
+      <ExpandedRowGrid.Cell span={1}>
+        <ActionsCell
+          record={instanceData}
+          modelData={modelData}
+          onSelect={handleChildSelect}
+        ></ActionsCell>
+      </ExpandedRowGrid.Cell>
+    </ExpandedRowGrid>
   );
 };
 export default InstanceItem;

src/pages/llmodels/components/instance/instances.tsx

@@ -17,6 +17,9 @@ interface InstanceItemProps {
   workerList: WorkerListItem[];
   modelData?: any;
   currentExpanded?: string;
+  gridTemplate?: string;
+  prefixWidth?: number;
+  columns?: any[];
   handleChildSelect: (val: string, item: ModelInstanceListItem) => void;
 }
 
@@ -25,6 +28,9 @@ const Instances: React.FC<InstanceItemProps> = ({
   workerList,
   modelData,
   currentExpanded,
+  gridTemplate,
+  prefixWidth,
+  columns,
   handleChildSelect
 }) => {
   const [firstLoad, setFirstLoad] = React.useState(true);
@@ -55,6 +61,9 @@ const Instances: React.FC<InstanceItemProps> = ({
             instanceData={item}
             defaultOpenId={firstLoad ? defaultOpenId : ''}
             handleChildSelect={handleChildSelect}
+            gridTemplate={gridTemplate}
+            prefixWidth={prefixWidth}
+            columns={columns}
           ></InstanceItem>
         );
       })}

src/pages/llmodels/components/table-list.tsx

@@ -441,6 +441,9 @@ const Models: React.FC<ModelsProps> = ({
           modelData={options.parent}
           workerList={workerList}
           handleChildSelect={handleChildSelect}
+          gridTemplate={options.gridTemplate}
+          prefixWidth={options.prefixWidth}
+          columns={options.columns}
         ></Instances>
       );
     },