feat: complete Loki query, insights, settings and deployment workflows

Add the Loki query UI, access policies, ingress insights, alert and registry settings, and their backend APIs. Include the related Kubernetes deployment and collector updates required by the integrated application.

Validated with go test ./..., npm run build, and npm run lint.

frontend/src/pages/hosts/components/HostCard.tsx

@@ -1,9 +1,8 @@
 import { memo } from 'react'
-import { Monitor, RefreshCw, Trash2, Eye, Terminal } from 'lucide-react'
+import { Monitor, RefreshCw, Trash2, Eye, Terminal, Pencil } from 'lucide-react'
 import { Button } from '@/components/ui/button'
-import { Card, CardContent } from '@/components/ui/card'
 import { StatusBadge } from '@/components/StatusBadge'
-import { InfoRow } from '@/components/InfoRow'
+import { ResourceCard } from '@/components/ResourceCard'
 import type { Host } from '@/types'
 
 interface HostCardProps {
@@ -13,85 +12,44 @@ interface HostCardProps {
   onOpenTerminal: (h: Host) => void
   onValidate: (id: number) => void
   onDelete: (h: Host) => void
+  onEdit: (h: Host) => void
 }
 
-/** 主机卡片 — 列表项展示与操作入口（删除传整个对象，供确认弹窗展示名称） */
+/** 主机卡片 — 统一 ResourceCard 样式 */
 export const HostCard = memo(function HostCard({
-  host,
-  validating,
-  onViewInfo,
-  onOpenTerminal,
-  onValidate,
-  onDelete,
+  host, validating, onViewInfo, onOpenTerminal, onValidate, onDelete, onEdit,
 }: HostCardProps) {
   return (
-    <Card className="border-border hover:shadow-md transition-shadow">
-      <CardContent className="p-5">
-        <div className="flex items-start justify-between mb-3">
-          <div className="flex items-center gap-2 min-w-0">
-            <Monitor className="w-5 h-5 text-purple-500 flex-shrink-0" />
-            <h3 className="font-semibold text-foreground truncate">
-              {host.name}
-            </h3>
-          </div>
-          <StatusBadge status={host.status} />
-        </div>
-
-        <div className="space-y-1.5 text-xs text-muted-foreground mb-4">
-          <InfoRow label="IP 地址" value={`${host.hostIP}:${host.port}`} />
-          <InfoRow label="用户名" value={host.user} />
-          <InfoRow
-            label="认证方式"
-            value={host.authType === 'key' ? 'SSH 密钥' : '密码'}
-          />
-          <InfoRow
-            label="系统"
-            value={`${host.os || '未知'} (${host.arch || '未知'})`}
-          />
-        </div>
-
-        <div className="flex gap-2 pt-3 border-t border-border">
-          <Button
-            variant="outline"
-            size="sm"
-            className="flex-1 text-xs"
-            onClick={() => onViewInfo(host)}
-          >
-            <Eye className="w-3 h-3 mr-1" />
-            详情
+    <ResourceCard
+      icon={Monitor}
+      iconClassName="text-purple-500"
+      title={host.name}
+      badges={<StatusBadge status={host.status} />}
+      fields={[
+        { label: '地址', value: `${host.hostIP}:${host.port}` },
+        { label: '用户', value: host.user },
+        { label: '认证', value: host.authType === 'key' ? 'SSH 密钥' : '密码' },
+        { label: '系统', value: `${host.os || '未知'} / ${host.arch || '未知'}` },
+      ]}
+      actions={
+        <>
+          <Button variant="outline" size="sm" aria-label={'编辑主机 ' + host.name} onClick={() => onEdit(host)}>
+            <Pencil className="size-3.5" />
           </Button>
-          <Button
-            variant="outline"
-            size="sm"
-            className="flex-1 text-xs"
-            onClick={() => onOpenTerminal(host)}
-          >
-            <Terminal className="w-3 h-3 mr-1" />
-            终端
+          <Button variant="outline" size="sm" className="flex-1 text-xs" onClick={() => onViewInfo(host)}>
+            <Eye className="size-3 mr-1" />详情
           </Button>
-          <Button
-            variant="outline"
-            size="sm"
-            aria-label={`验证主机 ${host.name}`}
-            className="text-xs"
-            onClick={() => onValidate(host.id)}
-            disabled={validating === host.id}
-          >
-            <RefreshCw
-              className={`w-3 h-3 ${validating === host.id ? 'animate-spin' : ''}`}
-            />
+          <Button variant="outline" size="sm" className="flex-1 text-xs" onClick={() => onOpenTerminal(host)}>
+            <Terminal className="size-3 mr-1" />终端
           </Button>
-          <Button
-            variant="outline"
-            size="sm"
-            aria-label={`删除主机 ${host.name}`}
-            className="text-destructive hover:text-destructive hover:bg-destructive/10"
-            onClick={() => onDelete(host)}
-          >
-            <Trash2 className="w-3 h-3" />
+          <Button variant="outline" size="sm" aria-label={`验证主机 ${host.name}`} disabled={validating === host.id} onClick={() => onValidate(host.id)}>
+            <RefreshCw className={`size-3 ${validating === host.id ? 'animate-spin' : ''}`} />
           </Button>
-        </div>
-      </CardContent>
-    </Card>
+          <Button variant="outline" size="sm" aria-label={`删除主机 ${host.name}`} className="text-destructive hover:text-destructive hover:bg-destructive/10" onClick={() => onDelete(host)}>
+            <Trash2 className="size-3.5" />
+          </Button>
+        </>
+      }
+    />
   )
 })