优化登录任务界面 + 修复时间显示 + 增加删除功能

- 筛选栏改为单行横排，概览精简为一行文字
- 任务列表全宽展示，日志移到底部可折叠
- 页面使用百分比布局，一屏展示无外层滚动
- 登录任务增加单条删除和批量删除功能
- 后端: datetime.utcnow 替换为 datetime.now(timezone.utc)
- 后端: schemas 序列化统一输出带时区 ISO 格式
- 前端: 新增 utils/time.ts 统一时间格式化工具
- 前端: CookiePage/LoginTasksPage 时间列使用 formatTime()

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>

web/frontend/src/pages/CookiePage.tsx

@@ -3,6 +3,7 @@ import { Table, Button, Card, Row, Col, Statistic, message, Tag, Popconfirm, Spa
 import { DownloadOutlined, DeleteOutlined, CopyOutlined, SearchOutlined } from '@ant-design/icons';
 import { cookieApi } from '../api/modules';
 import { getUser, hasPerm } from '../store/auth';
+import { formatTime } from '../utils/time';
 
 const { Text } = Typography;
 
@@ -126,7 +127,7 @@ export default function CookiePage() {
       dataIndex: 'created_at',
       width: 180,
       align: 'center',
-      render: (val: string) => val ? val.replace('T', ' ').slice(0, 19) : '-',
+      render: (val: string) => formatTime(val),
     },
     {
       title: '操作',

web/frontend/src/pages/LoginTasksPage.tsx

@@ -1,10 +1,11 @@
 import { useEffect, useState, useRef, useMemo, useCallback } from 'react';
 import {
-  Table, Button, Select, message, Tag, Space, Card, Row, Col, Statistic, Spin, InputNumber, Tooltip,
+  Table, Button, Select, message, Tag, Space, Spin, InputNumber, Tooltip, Popconfirm,
 } from 'antd';
-import { PlayCircleOutlined, StopOutlined, FilterOutlined, ThunderboltOutlined, ReloadOutlined } from '@ant-design/icons';
+import { PlayCircleOutlined, StopOutlined, FilterOutlined, ThunderboltOutlined, ReloadOutlined, DownOutlined, UpOutlined, DeleteOutlined } from '@ant-design/icons';
 import { accountApi, loginApi } from '../api/modules';
 import { getUser, hasPerm } from '../store/auth';
+import { formatTime } from '../utils/time';
 
 const STATUS_COLORS: Record<string, string> = {
   pending: 'default',
@@ -32,7 +33,10 @@ export default function LoginTasksPage() {
   const [wsConnected, setWsConnected] = useState(false);
   const [selectedTags, setSelectedTags] = useState<string[]>([]);
   const [concurrency, setConcurrency] = useState(3);
+  const [logVisible, setLogVisible] = useState(true);
+  const [selectedRowKeys, setSelectedRowKeys] = useState<number[]>([]);
   const wsRef = useRef<WebSocket | null>(null);
+  const logEndRef = useRef<HTMLDivElement | null>(null);
   const user = getUser();
 
   const canBatch = hasPerm(user, 'login:batch');
@@ -107,6 +111,13 @@ export default function LoginTasksPage() {
     loadAccounts();
   }, []);
 
+  // 日志自动滚动到底部
+  useEffect(() => {
+    if (logVisible && logEndRef.current) {
+      logEndRef.current.scrollIntoView({ behavior: 'smooth' });
+    }
+  }, [logs, logVisible]);
+
   useEffect(() => {
     const timer = setInterval(loadTasks, 3000);
     return () => clearInterval(timer);
@@ -183,6 +194,32 @@ export default function LoginTasksPage() {
     }
   };
 
+  const handleDeleteTask = async (taskId: number) => {
+    try {
+      await loginApi.deleteTask(taskId);
+      message.success('已删除');
+      loadTasks();
+      setSelectedRowKeys((prev) => prev.filter((k) => k !== taskId));
+    } catch (e: any) {
+      message.error(e.message);
+    }
+  };
+
+  const handleDeleteSelected = async () => {
+    if (selectedRowKeys.length === 0) {
+      message.warning('请选择要删除的任务');
+      return;
+    }
+    try {
+      await loginApi.deleteTasks(selectedRowKeys);
+      message.success(`已删除 ${selectedRowKeys.length} 个任务`);
+      setSelectedRowKeys([]);
+      loadTasks();
+    } catch (e: any) {
+      message.error(e.message);
+    }
+  };
+
   const successCount = tasks.filter((t) => t.status === 'success').length;
   const failedCount = tasks.filter((t) => ['failed', 'error'].includes(t.status)).length;
 
@@ -195,13 +232,13 @@ export default function LoginTasksPage() {
       render: (status: string) => <Tag color={STATUS_COLORS[status]}>{STATUS_LABELS[status] || status}</Tag>,
     },
     { title: '消息', dataIndex: 'message', ellipsis: true },
-    { title: '时间', dataIndex: 'created_at', width: 180 },
+    { title: '时间', dataIndex: 'created_at', width: 180, render: (val: string) => formatTime(val) },
     {
       title: '操作',
-      width: 80,
-      render: (_: any, record: any) => {
-        if (['failed', 'error'].includes(record.status) && !wsConnected) {
-          return (
+      width: 120,
+      render: (_: any, record: any) => (
+        <Space size={4}>
+          {['failed', 'error'].includes(record.status) && !wsConnected && (
             <Button
               type="link"
               size="small"
@@ -210,177 +247,189 @@ export default function LoginTasksPage() {
             >
               重试
             </Button>
-          );
-        }
-        return null;
-      },
+          )}
+          <Popconfirm title="确定删除此任务？" onConfirm={() => handleDeleteTask(record.id)} okText="删除" cancelText="取消">
+            <Button type="link" size="small" danger icon={<DeleteOutlined />} />
+          </Popconfirm>
+        </Space>
+      ),
     },
   ];
 
   return (
-    <div style={{ height: 'calc(100vh - 140px)', display: 'flex', flexDirection: 'column' }}>
-      <h2 style={{ marginTop: 0, flexShrink: 0 }}>登录任务</h2>
-
-      {canBatch && (
-        <Card size="small" style={{ marginBottom: 12, flexShrink: 0 }}>
-          <Space direction="vertical" style={{ width: '100%' }}>
-            {/* 标签快捷选择 */}
+    <div style={{ height: '100%', display: 'flex', flexDirection: 'column', overflow: 'hidden' }}>
+      {/* 标题 + 筛选栏 */}
+      <div style={{ flexShrink: 0, paddingBottom: 8, borderBottom: '1px solid #f0f0f0' }}>
+        <h2 style={{ marginTop: 0, marginBottom: 6 }}>登录任务</h2>
+        {canBatch && (
+          <div style={{ display: 'flex', alignItems: 'center', gap: 8, flexWrap: 'wrap' }}>
             {allTags.length > 0 && (
-              <Space>
-                <FilterOutlined />
-                <Select
-                  mode="multiple"
-                  style={{ minWidth: 300 }}
-                  placeholder="选择标签快速筛选账号"
-                  value={selectedTags}
-                  onChange={handleTagChange}
-                  options={allTags.map((t) => ({ value: t, label: t }))}
-                  maxTagCount="responsive"
-                  allowClear
-                />
-                {selectedTags.length > 0 && (
-                  <span style={{ color: '#888', fontSize: 12 }}>
-                    已通过标签选中 {accounts.filter((a) => selectedTags.includes((a.tag || '').trim())).length} 个账号
-                  </span>
-                )}
-              </Space>
-            )}
-            {/* 账号详情选择 */}
-            <Space>
               <Select
                 mode="multiple"
-                style={{ minWidth: 400 }}
-                placeholder="输入关键词筛选账号"
-                value={selectedIds}
-                onChange={setSelectedIds}
-                options={(() => {
-                  const grouped: Record<string, { value: number; label: string }[]> = {};
-                  const noTag: { value: number; label: string }[] = [];
-                  accounts.forEach((a) => {
-                    const tag = (a.tag || '').trim();
-                    if (tag) {
-                      if (!grouped[tag]) grouped[tag] = [];
-                      grouped[tag].push({ value: a.id, label: a.username });
-                    } else {
-                      noTag.push({ value: a.id, label: a.username });
-                    }
-                  });
-                  const result: any[] = [];
-                  Object.keys(grouped).sort().forEach((tag) => {
-                    result.push({ label: tag, options: grouped[tag] });
-                  });
-                  if (noTag.length > 0) {
-                    result.push({ label: '未分组', options: noTag });
-                  }
-                  return result;
-                })()}
+                style={{ minWidth: 200, maxWidth: 300 }}
+                placeholder="按标签筛选"
+                value={selectedTags}
+                onChange={handleTagChange}
+                options={allTags.map((t) => ({ value: t, label: t }))}
                 maxTagCount="responsive"
-                showSearch
-                filterOption={(input, option) => {
-                  if (!option) return false;
-                  const label = (option as any).label as string || '';
-                  return label.toLowerCase().includes(input.toLowerCase());
-                }}
-                dropdownRender={(menu) => (
-                  <>
-                    <div style={{ padding: '4px 8px', borderBottom: '1px solid #f0f0f0', display: 'flex', gap: 8 }}>
-                      <Button size="small" type="link" onClick={() => { setSelectedIds(accounts.map((a) => a.id)); setSelectedTags([]); }}>
-                        全选 ({accounts.length})
-                      </Button>
-                      <Button size="small" type="link" onClick={() => { setSelectedIds([]); setSelectedTags([]); }}>
-                        清空
-                      </Button>
-                    </div>
-                    {menu}
-                  </>
-                )}
-              />
-              <Tooltip title="同时登录的账号数，1为顺序执行">
-                <ThunderboltOutlined style={{ color: '#888' }} />
-              </Tooltip>
-              <InputNumber
-                min={1}
-                max={10}
-                value={concurrency}
-                onChange={(v) => setConcurrency(v || 1)}
-                style={{ width: 60 }}
+                allowClear
                 size="small"
+                suffixIcon={<FilterOutlined />}
               />
-              <Button
-                type="primary"
-                icon={<PlayCircleOutlined />}
-                loading={loading}
-                onClick={handleBatchLogin}
-                disabled={selectedIds.length === 0}
-              >
-                开始登录
-              </Button>
-              {batchId && (
-                <Button danger icon={<StopOutlined />} onClick={handleStop}>
-                  停止
-                </Button>
-              )}
-            </Space>
-          </Space>
-        </Card>
-      )}
-
-      <Row gutter={16} style={{ marginBottom: 12, flexShrink: 0 }}>
-        <Col span={6}>
-          <Card size="small"><Statistic title="任务总数" value={tasks.length} /></Card>
-        </Col>
-        <Col span={6}>
-          <Card size="small"><Statistic title="成功" value={successCount} valueStyle={{ color: '#3f8600' }} /></Card>
-        </Col>
-        <Col span={6}>
-          <Card size="small"><Statistic title="失败" value={failedCount} valueStyle={{ color: '#cf1322' }} /></Card>
-        </Col>
-        <Col span={6}>
-          <Card size="small"><Statistic title="当前批次" value={batchId || '-'} /></Card>
-        </Col>
-      </Row>
-
-      <Row gutter={16} style={{ flex: 1, minHeight: 0 }}>
-        <Col span={14} style={{ height: '100%', display: 'flex', flexDirection: 'column' }}>
-          <Card
-            title="任务列表"
-            size="small"
-            extra={
-              !wsConnected && failedCount > 0 && (
-                <Button
-                  type="primary"
-                  size="small"
-                  icon={<ReloadOutlined />}
-                  onClick={handleRetryFailed}
-                  loading={loading}
-                >
-                  重试失败 ({failedCount})
-                </Button>
-              )
-            }
-            style={{ flex: 1, display: 'flex', flexDirection: 'column', minHeight: 0 }}
-            bodyStyle={{ flex: 1, overflow: 'auto', padding: 0 }}
-          >
-            <Table
-              columns={columns}
-              dataSource={tasks}
-              rowKey="id"
+            )}
+            <Select
+              mode="multiple"
+              style={{ minWidth: 280, flex: 1, maxWidth: 500 }}
+              placeholder="选择账号"
+              value={selectedIds}
+              onChange={setSelectedIds}
+              options={(() => {
+                const grouped: Record<string, { value: number; label: string }[]> = {};
+                const noTag: { value: number; label: string }[] = [];
+                accounts.forEach((a) => {
+                  const tag = (a.tag || '').trim();
+                  if (tag) {
+                    if (!grouped[tag]) grouped[tag] = [];
+                    grouped[tag].push({ value: a.id, label: a.username });
+                  } else {
+                    noTag.push({ value: a.id, label: a.username });
+                  }
+                });
+                const result: any[] = [];
+                Object.keys(grouped).sort().forEach((tag) => {
+                  result.push({ label: tag, options: grouped[tag] });
+                });
+                if (noTag.length > 0) {
+                  result.push({ label: '未分组', options: noTag });
+                }
+                return result;
+              })()}
+              maxTagCount="responsive"
+              showSearch
               size="small"
-              pagination={{ pageSize: 15, size: 'small' }}
+              filterOption={(input, option) => {
+                if (!option) return false;
+                const label = (option as any).label as string || '';
+                return label.toLowerCase().includes(input.toLowerCase());
+              }}
+              dropdownRender={(menu) => (
+                <>
+                  <div style={{ padding: '4px 8px', borderBottom: '1px solid #f0f0f0', display: 'flex', gap: 8 }}>
+                    <Button size="small" type="link" onClick={() => { setSelectedIds(accounts.map((a) => a.id)); setSelectedTags([]); }}>
+                      全选 ({accounts.length})
+                    </Button>
+                    <Button size="small" type="link" onClick={() => { setSelectedIds([]); setSelectedTags([]); }}>
+                      清空
+                    </Button>
+                  </div>
+                  {menu}
+                </>
+              )}
             />
-          </Card>
-        </Col>
-        <Col span={10} style={{ height: '100%', display: 'flex', flexDirection: 'column' }}>
-          <Card
-            title="实时日志"
+            {selectedTags.length > 0 && (
+              <span style={{ color: '#888', fontSize: 12, whiteSpace: 'nowrap' }}>
+                标签选中 {accounts.filter((a) => selectedTags.includes((a.tag || '').trim())).length} 个
+              </span>
+            )}
+            <Tooltip title="同时登录的账号数，1为顺序执行">
+              <Space size={4}>
+                <ThunderboltOutlined style={{ color: '#888' }} />
+                <InputNumber
+                  min={1}
+                  max={10}
+                  value={concurrency}
+                  onChange={(v) => setConcurrency(v || 1)}
+                  style={{ width: 50 }}
+                  size="small"
+                />
+              </Space>
+            </Tooltip>
+            <Button
+              type="primary"
+              icon={<PlayCircleOutlined />}
+              loading={loading}
+              onClick={handleBatchLogin}
+              disabled={selectedIds.length === 0}
+              size="small"
+            >
+              开始登录
+            </Button>
+            {batchId && (
+              <Button danger icon={<StopOutlined />} onClick={handleStop} size="small">
+                停止
+              </Button>
+            )}
+          </div>
+        )}
+      </div>
+
+      {/* 概览 + 任务列表区域 */}
+      <div style={{ flex: 1, minHeight: 0, display: 'flex', flexDirection: 'column', paddingTop: 6 }}>
+        {/* 概览 */}
+        <div style={{ flexShrink: 0, display: 'flex', alignItems: 'center', gap: 16, fontSize: 13, color: '#666', padding: '4px 0' }}>
+          <span>共 <b>{tasks.length}</b> 个任务</span>
+          <span>成功 <b style={{ color: '#3f8600' }}>{successCount}</b></span>
+          <span>失败 <b style={{ color: '#cf1322' }}>{failedCount}</b></span>
+          {batchId && <span>批次: <b>{batchId}</b></span>}
+          <div style={{ flex: 1 }} />
+          {selectedRowKeys.length > 0 && (
+            <Popconfirm title={`确定删除选中的 ${selectedRowKeys.length} 个任务？`} onConfirm={handleDeleteSelected} okText="删除" cancelText="取消">
+              <Button type="link" size="small" danger icon={<DeleteOutlined />}>
+                删除选中 ({selectedRowKeys.length})
+              </Button>
+            </Popconfirm>
+          )}
+          {!wsConnected && failedCount > 0 && (
+            <Button
+              type="link"
+              size="small"
+              icon={<ReloadOutlined />}
+              onClick={handleRetryFailed}
+              loading={loading}
+            >
+              重试失败 ({failedCount})
+            </Button>
+          )}
+        </div>
+
+        {/* 任务列表 - flex:1 占满剩余空间，内部滚动 */}
+        <div style={{ flex: 1, minHeight: 0, overflow: 'auto' }}>
+          <Table
+            columns={columns}
+            dataSource={tasks}
+            rowKey="id"
             size="small"
-            style={{ flex: 1, display: 'flex', flexDirection: 'column', minHeight: 0 }}
-            bodyStyle={{
-              flex: 1,
+            pagination={false}
+            sticky
+            rowSelection={{
+              selectedRowKeys,
+              onChange: (keys) => setSelectedRowKeys(keys as number[]),
+            }}
+          />
+        </div>
+      </div>
+
+      {/* 实时日志 - 底部可折叠 */}
+      <div style={{ flexShrink: 0, borderTop: '1px solid #f0f0f0', marginTop: 4 }}>
+        <div
+          style={{ display: 'flex', alignItems: 'center', cursor: 'pointer', padding: '4px 0', userSelect: 'none' }}
+          onClick={() => setLogVisible((v) => !v)}
+        >
+          <span style={{ fontWeight: 500, fontSize: 13 }}>实时日志</span>
+          {logVisible ? <UpOutlined style={{ marginLeft: 6, fontSize: 10 }} /> : <DownOutlined style={{ marginLeft: 6, fontSize: 10 }} />}
+          {logs.length > 0 && <span style={{ marginLeft: 8, fontSize: 12, color: '#999' }}>{logs.length} 条</span>}
+          {wsConnected && <Tag color="processing" style={{ marginLeft: 8 }}>连接中</Tag>}
+        </div>
+        {logVisible && (
+          <div
+            style={{
+              height: '20vh',
               overflow: 'auto',
               fontFamily: 'monospace',
               fontSize: 12,
-              padding: 12,
+              padding: 4,
+              backgroundColor: '#fafafa',
+              borderRadius: 4,
             }}
           >
             {logs.length === 0 ? (
@@ -394,16 +443,17 @@ export default function LoginTasksPage() {
                       log.level === 'error' ? '#ff4d4f' :
                       log.level === 'success' ? '#52c41a' :
                       log.level === 'warning' ? '#fa8c16' :
-                      'rgba(0,0,0,0.85)',
+                      'rgba(0,0,0,0.65)',
                   }}
                 >
                   {log.message}
                 </div>
               ))
             )}
-          </Card>
-        </Col>
-      </Row>
+            <div ref={logEndRef} />
+          </div>
+        )}
+      </div>
     </div>
   );
 }