feat(frontend): Phase 5c-iii — xray status card + stop/restart controls

XrayStatusCard.vue renders the right-hand card on the dashboard:

- Title with mobile-only version tag (matches the legacy collapse)
- Animated badge for the running/stop/error states. The pulsing dot
  comes from xray-pulse keyframes (renamed from runningAnimation in
  legacy custom.min.css). Color rings on the badge use the legacy's
  per-state border-color overrides on .ant-badge-status-processing.
- Error state replaces the badge with a popover that surfaces the
  multi-line errorMsg + a logs shortcut.
- Action row at the bottom: optional logs (when ipLimitEnable),
  stop, restart, and version switch.

IndexPage now wires:
- POST /panel/api/server/stopXrayService and /restartXrayService,
  followed by a refresh() so the status card reflects the new state
  without waiting for the next poll tick
- POST /panel/setting/defaultSettings to read ipLimitEnable
- Stub handlers for the panel-logs / xray-logs / version-switch /
  cpu-history modals — those land in 5c-iv

AD-Vue 4 changes hit on this card:
- <a-icon type="bars|poweroff|reload|tool"> → explicit
  BarsOutlined / PoweroffOutlined / ReloadOutlined / ToolOutlined
- <span slot="title|content"> → <template #title|#content>
- The .xray-*-animation classes ship as global <style> (not scoped)
  so they pierce AD-Vue's internal .ant-badge-status-* DOM.

i18n still hardcoded English; Phase 7 wires vue-i18n.

Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>

frontend/src/pages/index/IndexPage.vue

@@ -1,29 +1,72 @@
 <script setup>
-import { computed } from 'vue';
+import { computed, ref } from 'vue';
 import { theme as antdTheme } from 'ant-design-vue';
 
+import { HttpUtil } from '@/utils';
 import { theme as themeState } from '@/composables/useTheme.js';
 import { useStatus } from '@/composables/useStatus.js';
 import { useMediaQuery } from '@/composables/useMediaQuery.js';
 import AppSidebar from '@/components/AppSidebar.vue';
 import StatusCard from './StatusCard.vue';
+import XrayStatusCard from './XrayStatusCard.vue';
 
 // Drive AD-Vue 4's built-in dark algorithm from our reactive theme.
 const antdThemeConfig = computed(() => ({
   algorithm: themeState.isDark ? antdTheme.darkAlgorithm : antdTheme.defaultAlgorithm,
 }));
 
-const { status, fetched } = useStatus();
+const { status, fetched, refresh } = useStatus();
 const { isMobile } = useMediaQuery();
 
+// `/panel/setting/defaultSettings` returns ipLimitEnable; the xray
+// card hides its log button when access logs are off.
+const ipLimitEnable = ref(false);
+HttpUtil.post('/panel/setting/defaultSettings').then((msg) => {
+  if (msg?.success && msg.obj) ipLimitEnable.value = !!msg.obj.ipLimitEnable;
+});
+
 // In production the Go panel injects basePath + requestUri into the
 // served HTML; during `npm run dev` we infer them from window.location.
 const basePath = window.__X_UI_BASE_PATH__ || '';
 const requestUri = window.location.pathname;
 
+const busy = ref(false);
+
+async function stopXray() {
+  busy.value = true;
+  try {
+    await HttpUtil.post('/panel/api/server/stopXrayService');
+    await refresh();
+  } finally {
+    busy.value = false;
+  }
+}
+
+async function restartXray() {
+  busy.value = true;
+  try {
+    await HttpUtil.post('/panel/api/server/restartXrayService');
+    await refresh();
+  } finally {
+    busy.value = false;
+  }
+}
+
 function onOpenCpuHistory() {
-  // CPU-history modal is part of Phase 5c-iv. Leaving the emit wired
-  // so the button isn't dead-clickable; no-op until then.
+  // CPU-history modal is part of Phase 5c-iv. Wired emit so the
+  // button isn't dead-clickable; no-op until that phase ships.
+}
+
+function onOpenLogs() {
+  // Panel-logs modal — Phase 5c-iv.
+}
+
+function onOpenXrayLogs() {
+  // Xray-logs modal — Phase 5c-iv.
+}
+
+function onOpenVersionSwitch() {
+  // Xray version-picker modal — Phase 5c-iv.
 }
 </script>
 
@@ -41,14 +84,26 @@ function onOpenCpuHistory() {
               <a-col :span="24">
                 <StatusCard :status="status" :is-mobile="isMobile" @open-cpu-history="onOpenCpuHistory" />
               </a-col>
-              <a-col :span="24">
+              <a-col :sm="24" :lg="12">
+                <XrayStatusCard
+                  :status="status"
+                  :is-mobile="isMobile"
+                  :ip-limit-enable="ipLimitEnable"
+                  @stop-xray="stopXray"
+                  @restart-xray="restartXray"
+                  @open-xray-logs="onOpenXrayLogs"
+                  @open-logs="onOpenLogs"
+                  @open-version-switch="onOpenVersionSwitch"
+                />
+              </a-col>
+              <a-col :sm="24" :lg="12">
                 <a-card hoverable>
                   <a-space direction="vertical" :size="8" style="width: 100%">
                     <h3 style="margin: 0">Dashboard scaffold</h3>
                     <p style="margin: 0; opacity: 0.7">
-                      Phase 5c-ii adds the live status cards above (CPU / memory / swap / disk).
-                      Xray status, panel update modal, logs, and the custom-geo section
-                      arrive in 5c-iii through 5c-v.
+                      Phase 5c-iii wires the xray status card on the left.
+                      Panel update modal, logs / xray-logs / backup, and the
+                      custom-geo section arrive in 5c-iv and 5c-v.
                     </p>
                   </a-space>
                 </a-card>

frontend/src/pages/index/XrayStatusCard.vue

@@ -0,0 +1,136 @@
+<script setup>
+import {
+  BarsOutlined,
+  PoweroffOutlined,
+  ReloadOutlined,
+  ToolOutlined,
+} from '@ant-design/icons-vue';
+
+defineProps({
+  status: { type: Object, required: true },
+  isMobile: { type: Boolean, default: false },
+  ipLimitEnable: { type: Boolean, default: false },
+});
+
+defineEmits(['stop-xray', 'restart-xray', 'open-xray-logs', 'open-version-switch']);
+
+// Map xray.color → which animation class to apply on the badge dot.
+// The legacy .xray-*-animation classes only override the badge ring
+// color; the actual pulsing comes from .xray-processing-animation
+// (which animates .ant-badge-status-dot via @keyframes runningAnimation).
+function badgeAnimationClass(color) {
+  if (color === 'green') return 'xray-running-animation';
+  if (color === 'orange') return 'xray-stop-animation';
+  if (color === 'red') return 'xray-error-animation';
+  return 'xray-processing-animation';
+}
+</script>
+
+<template>
+  <a-card hoverable>
+    <template #title>
+      <a-space direction="horizontal">
+        <span>Xray status</span>
+        <a-tag v-if="isMobile && status.xray.version && status.xray.version !== 'Unknown'" color="green">
+          v{{ status.xray.version }}
+        </a-tag>
+      </a-space>
+    </template>
+
+    <template #extra>
+      <template v-if="status.xray.state !== 'error'">
+        <a-badge
+          status="processing"
+          :class="['xray-processing-animation', badgeAnimationClass(status.xray.color)]"
+          :text="status.xray.stateMsg"
+          :color="status.xray.color"
+        />
+      </template>
+      <template v-else>
+        <a-popover>
+          <template #title>
+            <a-row type="flex" align="middle" justify="space-between">
+              <a-col><span>Xray error</span></a-col>
+              <a-col>
+                <BarsOutlined class="cursor-pointer" @click="$emit('open-logs')" />
+              </a-col>
+            </a-row>
+          </template>
+          <template #content>
+            <span v-for="(line, i) in (status.xray.errorMsg || '').split('\n')" :key="i" class="error-line">
+              {{ line }}
+            </span>
+          </template>
+          <a-badge
+            status="processing"
+            :text="status.xray.stateMsg"
+            :color="status.xray.color"
+            :class="['xray-processing-animation', 'xray-error-animation']"
+          />
+        </a-popover>
+      </template>
+    </template>
+
+    <template #actions>
+      <a-space v-if="ipLimitEnable" direction="horizontal" class="action" @click="$emit('open-xray-logs')">
+        <BarsOutlined />
+        <span v-if="!isMobile">Logs</span>
+      </a-space>
+      <a-space direction="horizontal" class="action" @click="$emit('stop-xray')">
+        <PoweroffOutlined />
+        <span v-if="!isMobile">Stop xray</span>
+      </a-space>
+      <a-space direction="horizontal" class="action" @click="$emit('restart-xray')">
+        <ReloadOutlined />
+        <span v-if="!isMobile">Restart xray</span>
+      </a-space>
+      <a-space direction="horizontal" class="action" @click="$emit('open-version-switch')">
+        <ToolOutlined />
+        <span v-if="!isMobile">
+          {{ status.xray.version && status.xray.version !== 'Unknown'
+            ? `v${status.xray.version}`
+            : 'Switch xray' }}
+        </span>
+      </a-space>
+    </template>
+  </a-card>
+</template>
+
+<style scoped>
+.action {
+  cursor: pointer;
+  justify-content: center;
+}
+
+.error-line {
+  display: block;
+  max-width: 400px;
+  white-space: pre-wrap;
+}
+
+.cursor-pointer {
+  cursor: pointer;
+}
+</style>
+
+<style>
+/* Legacy xray-*-animation classes — they need to be global so they
+ * pierce the AD-Vue badge's internal DOM (.ant-badge-status-*). */
+.xray-processing-animation .ant-badge-status-dot {
+  animation: xray-pulse 1.2s linear infinite;
+}
+.xray-running-animation .ant-badge-status-processing::after {
+  border-color: var(--color-primary-100, #008771);
+}
+.xray-stop-animation .ant-badge-status-processing::after {
+  border-color: #fa8c16;
+}
+.xray-error-animation .ant-badge-status-processing::after {
+  border-color: #f5222d;
+}
+
+@keyframes xray-pulse {
+  0%, 50%, 100% { transform: scale(1); opacity: 1; }
+  10% { transform: scale(1.5); opacity: 0.2; }
+}
+</style>