feat(intelligent-eval): open detail/report in right-side drawer

列表常驻，详情与报告改为右侧抽屉弹出，减少页面层级嵌套。

frontend/web/src/pages/IntelligentEvals.tsx

@@ -1,6 +1,6 @@
 import { useState } from 'react'
 import {
-  Button, Empty, Form, Input, InputNumber, Select, Space, Table, Tag, Tooltip, message,
+  Button, Drawer, Empty, Form, Input, InputNumber, Select, Space, Spin, Table, Tag, Tooltip, message,
 } from 'antd'
 import type { ColumnsType } from 'antd/es/table'
 import { PlusOutlined, ReloadOutlined, EyeOutlined, FileTextOutlined } from '@ant-design/icons'
@@ -18,7 +18,7 @@ import {
 import { colors } from '../tokens'
 import { formatDateTime } from '../utils/date'
 
-type View = 'list' | 'detail' | 'report'
+type DrawerView = 'detail' | 'report'
 
 interface CreateFormValues {
   name: string
@@ -31,7 +31,7 @@ interface CreateFormValues {
 }
 
 export default function IntelligentEvalsPage() {
-  const [view, setView] = useState<View>('list')
+  const [drawerView, setDrawerView] = useState<DrawerView>('detail')
   const [selectedId, setSelectedId] = useState<string | null>(null)
   const [detailTick, setDetailTick] = useState(0)
   const [createOpen, setCreateOpen] = useState(false)
@@ -52,7 +52,7 @@ export default function IntelligentEvalsPage() {
     { deps: [selectedId, detailTick] },
   )
 
-  const pollActive = view === 'detail' && selected != null
+  const pollActive = selected != null
     && (selected.status === 'planning' || selected.status === 'executing' || selected.status === 'pending_approval')
 
   usePolling(() => void reloadSelected(true), 5000, pollActive)
@@ -62,12 +62,18 @@ export default function IntelligentEvalsPage() {
 
   const openDetail = (id: string) => {
     setSelectedId(id)
-    setView('detail')
+    setDrawerView('detail')
   }
 
   const openReport = (id: string) => {
     setSelectedId(id)
-    setView('report')
+    setDrawerView('report')
+  }
+
+  const closeDrawer = () => {
+    setSelectedId(null)
+    setDrawerView('detail')
+    void reload()
   }
 
   const submitCreate = async () => {
@@ -149,42 +155,6 @@ export default function IntelligentEvalsPage() {
     },
   ]
 
-  if (view === 'detail' && selectedId) {
-    if (!selected) {
-      return (
-        <PageWrapper title="智能评估" inline fullHeight>
-          <div style={{ padding: 16 }}>加载中…</div>
-        </PageWrapper>
-      )
-    }
-    return (
-      <PageWrapper title="智能评估" inline fullHeight>
-        <EvalDetail
-          ev={selected}
-          targetName={targetName(selected.target_id)}
-          onBack={() => { setView('list'); void reload() }}
-          onOpenReport={() => setView('report')}
-          onChanged={() => setDetailTick((t) => t + 1)}
-        />
-      </PageWrapper>
-    )
-  }
-
-  if (view === 'report' && selectedId) {
-    if (!selected) {
-      return (
-        <PageWrapper title="智能评估" inline fullHeight>
-          <div style={{ padding: 16 }}>加载中…</div>
-        </PageWrapper>
-      )
-    }
-    return (
-      <PageWrapper title="智能评估" inline fullHeight>
-        <EvalReport ev={selected} onBack={() => setView('detail')} />
-      </PageWrapper>
-    )
-  }
-
   return (
     <PageWrapper
       title="智能评估"
@@ -211,6 +181,29 @@ export default function IntelligentEvalsPage() {
         />
       </div>
 
+      <Drawer
+        title={drawerView === 'report' ? '评估报告' : '评估详情'}
+        open={selectedId != null}
+        onClose={closeDrawer}
+        width={1040}
+        destroyOnClose
+        styles={{ body: { padding: 0 } }}
+      >
+        {selected == null ? (
+          <div style={{ padding: 48, textAlign: 'center' }}><Spin /></div>
+        ) : drawerView === 'report' ? (
+          <EvalReport ev={selected} onBack={() => setDrawerView('detail')} />
+        ) : (
+          <EvalDetail
+            ev={selected}
+            targetName={targetName(selected.target_id)}
+            onBack={closeDrawer}
+            onOpenReport={() => setDrawerView('report')}
+            onChanged={() => setDetailTick((t) => t + 1)}
+          />
+        )}
+      </Drawer>
+
       <FormDrawer
         title="新建智能评估"
         open={createOpen}