feat: 告警规则关联真实通知渠道 — 规则表单选择已配置渠道替代硬编码类型

- 规则创建/编辑表单: 用实际已配置的通知渠道列表(运维钉钉群/DBA邮箱等)替代硬编码的email/sms/dingtalk类型开关
- 规则表notify_channels列: 渠道ID解析为渠道名称+类型图标(替代原先仅显示3个固定图标)
- 组件挂载时预加载notifyChannels(原先仅在通知渠道弹窗打开时加载)
- 向后兼容: resolveChannelRef同时支持新格式(渠道ID)和旧格式(类型字符串)
- 数据修复: 恢复3条被软删除的种子通知渠道记录

frontend/src/components/monitor/AlertManager.tsx

@@ -50,10 +50,6 @@ import {
   ResponsiveContainer,
 } from 'recharts';
 
-function hasChannel(notifyChannels: any, channel: string): boolean {
-  return parseChannels(notifyChannels).includes(channel);
-}
-
 // 将 notify_channels (可能是数组/JSON字符串/逗号分隔) 解析为数组
 function parseChannels(notifyChannels: any): string[] {
   if (!notifyChannels) return [];
@@ -70,6 +66,32 @@ function parseChannels(notifyChannels: any): string[] {
   return [];
 }
 
+// 已知的渠道类型（用于旧数据兼容 — 旧规则存储类型字符串而非渠道 ID）
+const KNOWN_CHANNEL_TYPES = ['email', 'sms', 'dingtalk', 'wechat', 'webhook'];
+
+// 根据渠道类型获取图标组件名（用字符串映射，组件内用 getChannelIcon 返回实际组件）
+const CHANNEL_TYPE_LABELS: Record<string, string> = {
+  dingtalk: '钉钉',
+  wechat: '企业微信',
+  email: '邮件',
+  sms: '短信',
+  webhook: 'Webhook',
+};
+
+// 解析单个 notify_channels 引用值 — 返回 {id?, type, name, isLegacy}
+// 新格式存渠道 ID (string)，旧格式存类型字符串 (email/dingtalk 等)
+function resolveChannelRef(value: string, channels: any[]): { type: string; name: string; isLegacy: boolean } | null {
+  if (!value) return null;
+  // 尝试按 ID 匹配已配置渠道
+  const ch = channels.find((c) => String(c.id) === String(value));
+  if (ch) return { type: ch.type || 'unknown', name: ch.name || ch.type || '未命名', isLegacy: false };
+  // 兼容旧格式：值本身是类型字符串
+  if (KNOWN_CHANNEL_TYPES.includes(value)) {
+    return { type: value, name: CHANNEL_TYPE_LABELS[value] || value, isLegacy: true };
+  }
+  return null;
+}
+
 export function AlertManager() {
   const [activeTab, setActiveTab] = useState('events');
   const [searchQuery, setSearchQuery] = useState('');
@@ -288,15 +310,57 @@ export function AlertManager() {
     return CHANNEL_TYPES.find((t) => t.key === type)?.label || type;
   };
 
+  // 根据渠道类型返回对应图标组件
+  const getChannelIcon = (type: string) => {
+    switch (type) {
+      case 'email':
+        return Mail;
+      case 'sms':
+        return Phone;
+      case 'dingtalk':
+      case 'wechat':
+        return MessageSquare;
+      default:
+        return Bell;
+    }
+  };
+
+  // 渲染规则的通知渠道引用列表（兼容新格式=渠道ID 和 旧格式=类型字符串）
+  const renderRuleChannels = (rule: any) => {
+    const refs = parseChannels(rule.notify_channels);
+    if (refs.length === 0) return <span className="text-xs text-slate-600">--</span>;
+    return (
+      <div className="flex flex-wrap gap-1">
+        {refs.map((ref) => {
+          const resolved = resolveChannelRef(ref, notifyChannels);
+          if (!resolved) return null;
+          const Icon = getChannelIcon(resolved.type);
+          return (
+            <span
+              key={ref}
+              title={`${resolved.name} (${getChannelTypeLabel(resolved.type)})`}
+              className="inline-flex items-center gap-1 text-xs px-1.5 py-0.5 rounded bg-slate-800 text-slate-300"
+            >
+              <Icon className="h-3 w-3 text-slate-400" />
+              {resolved.name}
+            </span>
+          );
+        })}
+      </div>
+    );
+  };
+
   const loadData = async () => {
     try {
       setLoading(true);
-      const [alertsData, rulesData] = await Promise.all([
+      const [alertsData, rulesData, channelsData] = await Promise.all([
         alertApi.getAlerts(),
         alertApi.getRules(),
+        alertApi.getNotifyChannels(),
       ]);
       setAlerts((alertsData as any)?.list || []);
       setRules((rulesData as any)?.list || (Array.isArray(rulesData) ? rulesData : []));
+      setNotifyChannels((channelsData as any)?.list || []);
     } catch (error) {
       console.error('Failed to load alert data:', error);
     } finally {
@@ -702,17 +766,7 @@ export function AlertManager() {
                           <span className="text-sm text-slate-300">{(rule.duration || 0) / 60}分钟</span>
                         </TableCell>
                         <TableCell>
-                          <div className="flex gap-1">
+                          {renderRuleChannels(rule)}
-                            {hasChannel(rule.notify_channels, 'email') && (
-                              <Mail className="h-4 w-4 text-slate-400" />
-                            )}
-                            {hasChannel(rule.notify_channels, 'sms') && (
-                              <Phone className="h-4 w-4 text-slate-400" />
-                            )}
-                            {hasChannel(rule.notify_channels, 'dingtalk') && (
-                              <MessageSquare className="h-4 w-4 text-slate-400" />
-                            )}
-                          </div>
                         </TableCell>
                         <TableCell>
                           <Switch
@@ -865,26 +919,35 @@ export function AlertManager() {
 
             <div className="space-y-1.5">
               <Label className="text-slate-300">通知渠道</Label>
-              <div className="flex items-center gap-4 pt-1">
+              {notifyChannels.length === 0 ? (
-                {[
+                <div className="text-xs text-amber-400/80 bg-amber-500/5 border border-amber-500/20 rounded-md px-3 py-2">
-                  { key: 'email', label: '邮件', icon: Mail },
+                  暂无已配置的通知渠道，请先在「通知渠道配置」中添加
-                  { key: 'sms', label: '短信', icon: Phone },
+                </div>
-                  { key: 'dingtalk', label: '钉钉', icon: MessageSquare },
+              ) : (
-                ].map(({ key, label, icon: Icon }) => (
+                <div className="flex flex-wrap gap-3 pt-1">
-                  <label
+                  {notifyChannels.map((ch) => {
-                    key={key}
+                    const Icon = getChannelIcon(ch.type);
-                    className="flex items-center gap-2 cursor-pointer select-none text-sm text-slate-300"
+                    const checked = ruleForm.notify_channels.includes(String(ch.id));
-                  >
+                    return (
-                    <Switch
+                      <label
-                      checked={ruleForm.notify_channels.includes(key)}
+                        key={ch.id}
-                      onCheckedChange={() => toggleNotifyChannel(key)}
+                        className="flex items-center gap-2 cursor-pointer select-none text-sm text-slate-300"
-                      className="data-[state=checked]:bg-blue-600"
+                      >
-                    />
+                        <Switch
-                    <Icon className="h-4 w-4 text-slate-400" />
+                          checked={checked}
-                    {label}
+                          onCheckedChange={() => toggleNotifyChannel(String(ch.id))}
-                  </label>
+                          className="data-[state=checked]:bg-blue-600"
-                ))}
+                        />
-              </div>
+                        <Icon className="h-4 w-4 text-slate-400" />
+                        <span>
+                          {ch.name}
+                          <span className="text-xs text-slate-500 ml-1">({getChannelTypeLabel(ch.type)})</span>
+                        </span>
+                      </label>
+                    );
+                  })}
+                </div>
+              )}
             </div>
           </div>