refactor(frontend): P3 — K8s 组件拆分、AlertCenter Query、permission utils

- 拆分 DeploymentView / DeploymentDetail 至子目录（<700 行红线）
- AlertCenter 接入 useAlerts / useAgentAlertRules / useAlertMutations
- 新增 utils/permission.ts，usePermission 复用纯函数
- useAlerts 增强分页统计与 Agent 规则 hooks

frontend/src/components/kubernetes/deployment-view/helpers.tsx

@@ -0,0 +1,64 @@
+// deployment-view/helpers.tsx — 时间线 / 信息面板辅助组件 // Logan.Li
+import { Fragment } from 'react';
+import {
+  formatK8sTime, formatDuration, elapsedSeconds, STATUS_COLORS,
+} from '../k8s-yaml-utils';
+import type { PodItem } from './types';
+
+// Pod 条件时间线提取 // Logan.Li
+export function getPodTimeline(pod: PodItem) {
+  const cond: Record<string, any>[] = (pod as Record<string, any>).conditions || (pod as Record<string, any>).pod_conditions || [];
+  const find = (t: string) => cond.find((c: any) => (c.type || c.Type) === t);
+  const ts = (c: any) => c?.lastTransitionTime || c?.LastTransitionTime || c?.last_transition_time;
+  return {
+    scheduled: ts(find('PodScheduled') || {}),
+    initialized: ts(find('Initialized') || {}),
+    containersReady: ts(find('ContainersReady') || {}),
+    ready: ts(find('Ready') || {}),
+    startTime: pod.start_time || (pod as Record<string, any>).startTime,
+  };
+}
+
+// 信息面板单项 // Logan.Li
+export function InfoItem({ label, value }: { label: string; value: React.ReactNode }) {
+  return (
+    <div>
+      <p className="text-xs text-[var(--dg-text-muted)] mb-1">{label}</p>
+      <div className="text-sm text-[var(--dg-text-primary)]">{value}</div>
+    </div>
+  );
+}
+
+// Pod 条件进度条 // Logan.Li
+export function PodConditionsRow({ pod }: { pod: PodItem }) {
+  const tl = getPodTimeline(pod);
+  const stages = [
+    { label: '已调度', ts: tl.scheduled, color: STATUS_COLORS.blue },
+    { label: '已初始化', ts: tl.initialized, color: STATUS_COLORS.orange },
+    { label: '容器已就绪', ts: tl.containersReady, color: STATUS_COLORS.green },
+    { label: '容器组已就绪', ts: tl.ready, color: STATUS_COLORS.green },
+  ];
+  return (
+    <div className="flex items-center gap-2 overflow-x-auto">
+      {stages.map((s, i) => {
+        const prev = stages[i - 1];
+        const dur = elapsedSeconds(prev?.ts, s.ts);
+        return (
+          <Fragment key={s.label}>
+            <div className="flex flex-col items-center min-w-[80px]">
+              <div className="h-2 w-2 rounded-full" style={{ background: s.ts ? s.color : '#334155' }} />
+              <span className="text-[10px] mt-1 font-medium" style={{ color: s.ts ? s.color : '#475569' }}>{s.label}</span>
+              <span className="text-[9px] text-[var(--dg-text-muted)]">{s.ts ? formatK8sTime(s.ts) : '-'}</span>
+            </div>
+            {i < stages.length - 1 && (
+              <div className="flex flex-col items-center mx-0.5 min-w-[30px]">
+                <div className="h-0.5 w-8 bg-[var(--dg-border)]" />
+                <span className="text-[9px] text-[var(--dg-text-muted)] mt-0.5">{dur != null ? formatDuration(dur) : ''}</span>
+              </div>
+            )}
+          </Fragment>
+        );
+      })}
+    </div>
+  );
+}