feat: 定时任务编辑入口全栈打通 + 修复ApprovalFlow编译错误 + 完成大文件拆分重构

- CronJobManager: 编辑按钮接通 onClick → openEdit(job)，弹出编辑对话框预填数据，
  复用新建/编辑共用 Dialog（editingId 区分模式），标题/按钮文案动态切换，
  保存时根据 editingId 调用 createJob 或 updateJob — 消除占位按钮
- ApprovalFlow: 修复 API 方法名不匹配导致 tsc -b 编译失败
  (getInstances→getProcesses, getMyApprovals→getProcesses({status:'pending'}),
   approveInstance→approveProcess, rejectInstance→rejectProcess)
  + 添加 ApprovalFlowManager 导出别名兼容 App.tsx 导入
- 合并已完成的大文件拆分重构: automation.go→automation_cron/script/playbook,
  ldap.go→ldap_ou/ldap_users, server.go→cloud_accounts/domain/platform/region,
  user.go→user_admin; 前端 Dashboard/K8s/Server/Approval/Monitor 子组件拆分
  // Logan.Li

frontend/src/components/monitor/AlertChannelDialog.tsx

@@ -0,0 +1,274 @@
+import { useState, useEffect } from 'react';
+import { useConfirm } from '@/components/ui/confirm-dialog';
+import { Button } from '@/components/ui/button';
+import { Input } from '@/components/ui/input';
+import { Label } from '@/components/ui/label';
+import { Textarea } from '@/components/ui/textarea';
+import { Badge } from '@/components/ui/badge';
+import { Switch } from '@/components/ui/switch';
+import {
+  Dialog,
+  DialogContent,
+  DialogDescription,
+  DialogFooter,
+  DialogHeader,
+  DialogTitle,
+} from '@/components/ui/dialog';
+import { Plus, Trash2, Loader2 } from 'lucide-react';
+import { alertApi } from '@/services/api';
+import { CHANNEL_TYPES, getChannelTypeLabel } from './alertShared';
+
+const defaultChannelForm = { name: '', type: 'dingtalk', config: '', enabled: true };
+
+export function AlertChannelDialog({
+  open,
+  onOpenChange,
+  notifyChannels,
+  onChannelsChanged,
+}: {
+  open: boolean;
+  onOpenChange: (open: boolean) => void;
+  notifyChannels: any[];
+  onChannelsChanged: () => void;
+}) {
+  const _confirm = useConfirm();
+  const [editingChannel, setEditingChannel] = useState<any>(null);
+  const [channelSaving, setChannelSaving] = useState(false);
+  const [channelTesting, setChannelTesting] = useState<number | null>(null);
+  const [channelForm, setChannelForm] = useState({ ...defaultChannelForm });
+
+  // 打开时重置为新建模式
+  useEffect(() => {
+    if (open) {
+      setEditingChannel(null);
+      setChannelForm({ ...defaultChannelForm });
+    }
+  }, [open]);
+
+  const openEditChannel = (ch: any) => {
+    setEditingChannel(ch);
+    setChannelForm({
+      name: ch.name || '',
+      type: ch.type || 'dingtalk',
+      config: ch.config || '',
+      enabled: ch.enabled !== false,
+    });
+  };
+
+  const resetChannelForm = () => {
+    setEditingChannel(null);
+    setChannelForm({ ...defaultChannelForm });
+  };
+
+  const handleSaveChannel = async () => {
+    if (!channelForm.name.trim()) return;
+    setChannelSaving(true);
+    try {
+      const payload = {
+        name: channelForm.name.trim(),
+        type: channelForm.type,
+        config: channelForm.config.trim(),
+      };
+      if (editingChannel) {
+        await alertApi.updateNotifyChannel(editingChannel.id, { ...payload, enabled: channelForm.enabled });
+      } else {
+        await alertApi.createNotifyChannel(payload);
+      }
+      resetChannelForm();
+      onChannelsChanged();
+    } catch (error) {
+      console.error('Failed to save notify channel:', error);
+    } finally {
+      setChannelSaving(false);
+    }
+  };
+
+  const handleDeleteChannel = async (id: any) => {
+    { const ok = await _confirm({ title: '删除通知渠道', description: '确定删除此通知渠道？', confirmText: '删除', variant: 'destructive' }); if (!ok) return; }
+    try {
+      await alertApi.deleteNotifyChannel(id);
+      if (editingChannel && editingChannel.id === id) resetChannelForm();
+      onChannelsChanged();
+    } catch (error) {
+      console.error('Failed to delete notify channel:', error);
+    }
+  };
+
+  const handleToggleChannel = async (ch: any) => {
+    try {
+      await alertApi.updateNotifyChannel(ch.id, { enabled: !ch.enabled });
+      onChannelsChanged();
+    } catch (error) {
+      console.error('Failed to toggle notify channel:', error);
+    }
+  };
+
+  const handleTestChannel = async (id: any) => {
+    setChannelTesting(id);
+    try {
+      await alertApi.testNotifyChannel(id);
+      onChannelsChanged();
+    } catch (error) {
+      console.error('Failed to test notify channel:', error);
+    } finally {
+      setChannelTesting(null);
+    }
+  };
+
+  return (
+    <Dialog open={open} onOpenChange={onOpenChange}>
+      <DialogContent className="bg-slate-900 border-slate-700 text-slate-100 max-w-2xl">
+        <DialogHeader>
+          <DialogTitle className="text-slate-100">通知渠道配置</DialogTitle>
+          <DialogDescription className="text-slate-500">
+            管理告警通知渠道（钉钉/企业微信/邮件/短信/Webhook），配置后可在告警规则中引用
+          </DialogDescription>
+        </DialogHeader>
+
+        <div className="grid grid-cols-1 lg:grid-cols-2 gap-4 max-h-[65vh] overflow-y-auto pr-1">
+          {/* 渠道列表 */}
+          <div className="space-y-2">
+            <div className="flex items-center justify-between">
+              <Label className="text-slate-300 text-sm">已配置渠道</Label>
+              <Button
+                size="sm"
+                variant="outline"
+                className="h-7 border-slate-700 text-slate-300 hover:bg-slate-800 text-xs"
+                onClick={resetChannelForm}
+              >
+                <Plus className="h-3 w-3 mr-1" />
+                新建
+              </Button>
+            </div>
+            {notifyChannels.length === 0 ? (
+              <div className="text-center py-8 text-sm text-slate-600 border border-dashed border-slate-800 rounded-lg">
+                暂无通知渠道，请在右侧添加
+              </div>
+            ) : (
+              <div className="space-y-2">
+                {notifyChannels.map((ch) => (
+                  <div
+                    key={ch.id}
+                    className={`p-3 rounded-lg border cursor-pointer transition-colors ${
+                      editingChannel && editingChannel.id === ch.id
+                        ? 'border-blue-500/50 bg-blue-500/5'
+                        : 'border-slate-800 bg-slate-800/30 hover:border-slate-700'
+                    }`}
+                    onClick={() => openEditChannel(ch)}
+                  >
+                    <div className="flex items-center justify-between">
+                      <div className="flex items-center gap-2 min-w-0">
+                        <span className="text-sm text-slate-200 truncate">{ch.name}</span>
+                        <Badge variant="outline" className="border-slate-600 text-slate-400 text-[10px] py-0">
+                          {getChannelTypeLabel(ch.type)}
+                        </Badge>
+                      </div>
+                      <Switch
+                        checked={ch.enabled !== false}
+                        onCheckedChange={() => handleToggleChannel(ch)}
+                        onClick={(e) => e.stopPropagation()}
+                        className="data-[state=checked]:bg-emerald-600 scale-90"
+                      />
+                    </div>
+                    <div className="flex items-center justify-between mt-2">
+                      {ch.test_status === 'success' ? (
+                        <span className="text-[11px] text-emerald-400">测试通过</span>
+                      ) : (
+                        <span className="text-[11px] text-slate-600">未测试</span>
+                      )}
+                      <div className="flex items-center gap-1" onClick={(e) => e.stopPropagation()}>
+                        <Button
+                          size="sm"
+                          variant="ghost"
+                          className="h-6 px-2 text-slate-400 hover:text-slate-200 hover:bg-slate-700 text-xs"
+                          disabled={channelTesting === ch.id}
+                          onClick={() => handleTestChannel(ch.id)}
+                        >
+                          {channelTesting === ch.id ? <Loader2 className="h-3 w-3 animate-spin" /> : '测试'}
+                        </Button>
+                        <Button
+                          size="sm"
+                          variant="ghost"
+                          className="h-6 px-2 text-red-400/70 hover:text-red-400 hover:bg-red-500/10 text-xs"
+                          onClick={() => handleDeleteChannel(ch.id)}
+                        >
+                          <Trash2 className="h-3 w-3" />
+                        </Button>
+                      </div>
+                    </div>
+                  </div>
+                ))}
+              </div>
+            )}
+          </div>
+
+          {/* 渠道表单 */}
+          <div className="space-y-4">
+            <Label className="text-slate-300 text-sm">
+              {editingChannel ? '编辑渠道' : '新建渠道'}
+            </Label>
+            <div className="space-y-1.5">
+              <Label className="text-slate-400 text-xs">渠道名称 <span className="text-red-400">*</span></Label>
+              <Input
+                value={channelForm.name}
+                onChange={(e) => setChannelForm({ ...channelForm, name: e.target.value })}
+                placeholder="如：运维告警群"
+                className="bg-slate-800/50 border-slate-700 text-slate-200 placeholder:text-slate-600 h-9"
+              />
+            </div>
+            <div className="space-y-1.5">
+              <Label className="text-slate-400 text-xs">渠道类型</Label>
+              <select
+                value={channelForm.type}
+                onChange={(e) => setChannelForm({ ...channelForm, type: e.target.value })}
+                className="w-full h-9 px-3 rounded-md bg-slate-800/50 border border-slate-700 text-slate-200 text-sm"
+              >
+                {CHANNEL_TYPES.map(({ key, label }) => (
+                  <option key={key} value={key}>{label}</option>
+                ))}
+              </select>
+            </div>
+            <div className="space-y-1.5">
+              <Label className="text-slate-400 text-xs">配置（JSON）</Label>
+              <Textarea
+                value={channelForm.config}
+                onChange={(e) => setChannelForm({ ...channelForm, config: e.target.value })}
+                placeholder={CHANNEL_TYPES.find((t) => t.key === channelForm.type)?.placeholder || ''}
+                rows={5}
+                className="bg-slate-800/50 border-slate-700 text-slate-200 placeholder:text-slate-600 font-mono text-xs resize-none"
+              />
+            </div>
+            {editingChannel && (
+              <div className="flex items-center gap-2">
+                <Switch
+                  checked={channelForm.enabled}
+                  onCheckedChange={(v) => setChannelForm({ ...channelForm, enabled: v })}
+                  className="data-[state=checked]:bg-emerald-600"
+                />
+                <Label className="text-slate-400 text-xs">启用此渠道</Label>
+              </div>
+            )}
+          </div>
+        </div>
+
+        <DialogFooter>
+          <Button
+            variant="outline"
+            className="border-slate-700 text-slate-300 hover:bg-slate-800"
+            onClick={() => onOpenChange(false)}
+          >
+            关闭
+          </Button>
+          <Button
+            className="bg-blue-600 hover:bg-blue-700 text-white"
+            disabled={!channelForm.name.trim() || channelSaving}
+            onClick={handleSaveChannel}
+          >
+            {channelSaving && <Loader2 className="h-4 w-4 mr-2 animate-spin" />}
+            {editingChannel ? '保存修改' : '添加渠道'}
+          </Button>
+        </DialogFooter>
+      </DialogContent>
+    </Dialog>
+  );
+}