feat: ServerManager 死按钮清理+CSV导出+统计卡片提取; 审批/导航后端拆分; DialogDescription修复; AppRelease重试按钮实现

frontend/src/components/agent/AgentMonitor.tsx

@@ -553,6 +553,7 @@ function HostDetailDialog({
               <Badge className="bg-red-500/15 text-red-400 border border-red-500/30">离线</Badge>
             )}
           </DialogTitle>
+          <DialogDescription className="sr-only">查看主机详情和指标趋势</DialogDescription>
         </DialogHeader>
 
         <div className="space-y-4">

frontend/src/components/audit/SQLAuditManager.tsx

@@ -535,6 +535,7 @@ const SQLAuditManager: React.FC = () => {
         <DialogContent className="max-w-3xl">
           <DialogHeader>
             <DialogTitle>SQL审计详情</DialogTitle>
+            <DialogDescription className="sr-only">查看SQL审计记录详情</DialogDescription>
           </DialogHeader>
           {selectedRecord && (
             <div className="space-y-4">

frontend/src/components/cloud/PlatformManager.tsx

@@ -6,6 +6,7 @@ import { Badge } from '@/components/ui/badge';
 import {
   Dialog,
   DialogContent,
+  DialogDescription,
   DialogFooter,
   DialogHeader,
   DialogTitle,
@@ -221,6 +222,7 @@ export function PlatformManager() {
         <DialogContent>
           <DialogHeader>
             <DialogTitle>{editingItem ? '编辑云平台' : '添加云平台'}</DialogTitle>
+            <DialogDescription className="sr-only">描述</DialogDescription>
           </DialogHeader>
           <div className="space-y-4 py-2">
             <div className="grid grid-cols-2 gap-4">
@@ -305,6 +307,7 @@ export function PlatformManager() {
         <DialogContent className="max-w-sm">
           <DialogHeader>
             <DialogTitle>确认删除</DialogTitle>
+            <DialogDescription className="sr-only">描述</DialogDescription>
           </DialogHeader>
           <p className="text-sm text-slate-400">确定删除此云平台？此操作不可撤销。</p>
           <DialogFooter>

frontend/src/components/cloud/RegionManager.tsx

@@ -15,6 +15,7 @@ import {
 import {
   Dialog,
   DialogContent,
+  DialogDescription,
   DialogFooter,
   DialogHeader,
   DialogTitle,
@@ -318,6 +319,7 @@ export function RegionManager() {
         <DialogContent>
           <DialogHeader>
             <DialogTitle>{editingItem ? '编辑区域' : '添加区域'}</DialogTitle>
+            <DialogDescription className="sr-only">描述</DialogDescription>
           </DialogHeader>
           <div className="space-y-4 py-2">
             <div className="grid grid-cols-2 gap-4">

frontend/src/components/deploy/AppRelease.tsx

@@ -53,7 +53,6 @@ import {
   Loader2,
   ArrowLeft,
   ArrowRight,
-  Terminal,
 } from 'lucide-react';
 import { releaseApi } from '@/services/api';
 import { toast } from 'sonner';
@@ -416,7 +415,20 @@ export function AppReleaseManager() {
                           详情
                         </Button>
                         {release.status === 'failed' && (
-                          <Button variant="ghost" size="sm" className="h-8 text-slate-400 hover:text-blue-400">
+                          <Button
+                            variant="ghost"
+                            size="sm"
+                            className="h-8 text-slate-400 hover:text-blue-400"
+                            onClick={async () => {
+                              try {
+                                await releaseApi.deployRelease(release.id);
+                                toast.success('已重新触发部署');
+                                loadData();
+                              } catch {
+                                toast.error('重新部署失败');
+                              }
+                            }}
+                          >
                             <RotateCcw className="h-4 w-4 mr-1" />
                             重试
                           </Button>
@@ -521,14 +533,26 @@ export function AppReleaseManager() {
           </div>
 
           <DialogFooter>
-            <Button variant="outline" className="border-slate-700 text-slate-300">
-              <Terminal className="h-4 w-4 mr-2" />
-              查看完整日志
-            </Button>
             {selectedRelease?.status === 'failed' && (
-              <Button className="bg-blue-600 hover:bg-blue-700 text-white">
+              <Button
+                className="bg-blue-600 hover:bg-blue-700 text-white"
+                onClick={async () => {
+                  try {
+                    setSubmitting(true);
+                    await releaseApi.deployRelease(selectedRelease.id);
+                    toast.success('已重新触发部署');
+                    setSelectedRelease(null);
+                    loadData();
+                  } catch {
+                    toast.error('重新部署失败');
+                  } finally {
+                    setSubmitting(false);
+                  }
+                }}
+                disabled={submitting}
+              >
                 <RotateCcw className="h-4 w-4 mr-2" />
-                重新发布
+                重新部署
               </Button>
             )}
           </DialogFooter>

frontend/src/components/monitor/alert-center/AlertCenterDetail.tsx

@@ -26,6 +26,7 @@ export function AlertDetailDialog({
             {alert?.title}
             {alert && getSeverityBadge(alert.severity)}
           </DialogTitle>
+          <DialogDescription className="sr-only">查看告警详情</DialogDescription>
         </DialogHeader>
         {alert && (
           <div className="space-y-4">

frontend/src/components/monitor/trace/TraceManager.tsx

@@ -502,6 +502,7 @@ const TraceManager: React.FC = () => {
               Trace详情
               <span className="font-mono text-sm text-muted-foreground">{selectedTrace?.traceId}</span>
             </DialogTitle>
+            <DialogDescription className="sr-only">描述</DialogDescription>
           </DialogHeader>
           {selectedTrace && (
             <div className="space-y-4">
@@ -550,6 +551,7 @@ const TraceManager: React.FC = () => {
         <DialogContent className="max-w-2xl">
           <DialogHeader>
             <DialogTitle>Span详情</DialogTitle>
+            <DialogDescription className="sr-only">描述</DialogDescription>
           </DialogHeader>
           {selectedSpan && (
             <div className="space-y-4">

frontend/src/components/server/ServerManager.tsx

@@ -33,19 +33,17 @@ import {
   Plus,
   MoreHorizontal,
   Terminal,
-  Power,
-  RotateCw,
   Trash2,
   Edit,
   Download,
   Upload,
-  Server,
-  Activity,
+  Server as ServerIcon,
   Cloud,
   FileSpreadsheet,
   RefreshCw,
 } from 'lucide-react';
 import { serverApi } from '@/services/api';
+import { ServerStatsCards } from './ServerStatsCards';
 import { useConfirm } from '@/components/ui/confirm-dialog';
 import { toast } from 'sonner';
 import type { Server as ServerType } from '@/types';
@@ -247,6 +245,32 @@ export function ServerManager() {
     }
   };
 
+  // 导出 CSV — 将当前服务器列表导出为 CSV 文件 // Logan.Li
+  const handleExport = () => {
+    if (filteredServers.length === 0) {
+      toast.error('没有可导出的数据');
+      return;
+    }
+    const headers = ['主机名', 'IP地址', '公网IP', '端口', '操作系统', 'CPU(核)', '内存(GB)', '磁盘(GB)', '状态', '标签'];
+    const rows = filteredServers.map((s) => {
+      const memGB = s.memory ? Math.round(s.memory / 1024) : 0;
+      const tags = getTags(s).join(';');
+      return [s.hostname || '', s.ip || '', s.public_ip || '', s.port || 22, s.os || '',
+        s.cpu || 0, memGB, s.disk || 0, s.status || '', tags];
+    });
+    const csv = [headers, ...rows]
+      .map((row) => row.map((cell) => `"${String(cell).replace(/"/g, '""')}"`).join(','))
+      .join('\n');
+    const blob = new Blob(['\ufeff' + csv], { type: 'text/csv;charset=utf-8;' });
+    const url = URL.createObjectURL(blob);
+    const a = document.createElement('a');
+    a.href = url;
+    a.download = `servers_${new Date().toISOString().slice(0, 10)}.csv`;
+    a.click();
+    URL.revokeObjectURL(url);
+    toast.success(`已导出 ${filteredServers.length} 台服务器`);
+  };
+
   const getStatusBadge = (status: ServerType['status']) => {
     switch (status) {
       case 'running':
@@ -299,7 +323,11 @@ export function ServerManager() {
             <RefreshCw className={cn('h-4 w-4 mr-2', loading && 'animate-spin')} />
             刷新
           </Button>
-          <Button variant="outline" className="border-[var(--dg-border)] text-[var(--dg-text-secondary)] hover:text-[var(--dg-text-primary)] hover:bg-[var(--dg-bg-hover)]">
+          <Button
+            variant="outline"
+            className="border-[var(--dg-border)] text-[var(--dg-text-secondary)] hover:text-[var(--dg-text-primary)] hover:bg-[var(--dg-bg-hover)]"
+            onClick={handleExport}
+          >
             <Download className="h-4 w-4 mr-2" />
             导出
           </Button>
@@ -342,66 +370,7 @@ export function ServerManager() {
       </div>
 
       {/* Stats Cards */}
-      <div className="grid grid-cols-1 md:grid-cols-4 gap-4">
-        <Card className="bg-[var(--dg-bg-secondary)] border-[var(--dg-border)]">
-          <CardContent className="p-4">
-            <div className="flex items-center justify-between">
-              <div>
-                <p className="text-sm text-[var(--dg-text-muted)]">服务器总数</p>
-                <p className="text-2xl font-bold text-[var(--dg-text-primary)]">{servers.length}</p>
-              </div>
-              <div className="p-3 rounded-lg bg-[var(--dg-blue)]/10 text-[var(--dg-blue)]">
-                <Server className="h-5 w-5" />
-              </div>
-            </div>
-          </CardContent>
-        </Card>
-        <Card className="bg-[var(--dg-bg-secondary)] border-[var(--dg-border)]">
-          <CardContent className="p-4">
-            <div className="flex items-center justify-between">
-              <div>
-                <p className="text-sm text-[var(--dg-text-muted)]">运行中</p>
-                <p className="text-2xl font-bold text-emerald-400">
-                  {servers.filter((s) => s.status === 'running').length}
-                </p>
-              </div>
-              <div className="p-3 rounded-lg bg-emerald-500/10 text-emerald-400">
-                <Activity className="h-5 w-5" />
-              </div>
-            </div>
-          </CardContent>
-        </Card>
-        <Card className="bg-[var(--dg-bg-secondary)] border-[var(--dg-border)]">
-          <CardContent className="p-4">
-            <div className="flex items-center justify-between">
-              <div>
-                <p className="text-sm text-[var(--dg-text-muted)]">维护中</p>
-                <p className="text-2xl font-bold text-amber-400">
-                  {servers.filter((s) => s.status === 'maintenance').length}
-                </p>
-              </div>
-              <div className="p-3 rounded-lg bg-amber-500/10 text-amber-400">
-                <RotateCw className="h-5 w-5" />
-              </div>
-            </div>
-          </CardContent>
-        </Card>
-        <Card className="bg-[var(--dg-bg-secondary)] border-[var(--dg-border)]">
-          <CardContent className="p-4">
-            <div className="flex items-center justify-between">
-              <div>
-                <p className="text-sm text-[var(--dg-text-muted)]">已停止</p>
-                <p className="text-2xl font-bold text-[var(--dg-text-muted)]">
-                  {servers.filter((s) => s.status === 'stopped').length}
-                </p>
-              </div>
-              <div className="p-3 rounded-lg bg-[var(--dg-bg-tertiary)] text-[var(--dg-text-secondary)]">
-                <Power className="h-5 w-5" />
-              </div>
-            </div>
-          </CardContent>
-        </Card>
-      </div>
+      <ServerStatsCards servers={servers} />
 
       {/* Filters & Table */}
       <Card className="bg-[var(--dg-bg-secondary)] border-[var(--dg-border)]">
@@ -434,14 +403,6 @@ export function ServerManager() {
             {selectedServers.length > 0 && (
               <div className="flex items-center gap-2">
                 <span className="text-sm text-[var(--dg-text-secondary)]">已选择 {selectedServers.length} 项</span>
-                <Button variant="outline" size="sm" className="border-[var(--dg-border)] text-[var(--dg-text-secondary)] hover:bg-[var(--dg-bg-hover)]">
-                  <Terminal className="h-4 w-4 mr-2" />
-                  批量命令
-                </Button>
-                <Button variant="outline" size="sm" className="border-[var(--dg-border)] text-[var(--dg-text-secondary)] hover:bg-[var(--dg-bg-hover)]">
-                  <RotateCw className="h-4 w-4 mr-2" />
-                  重启
-                </Button>
                 <Button
                   variant="outline"
                   size="sm"
@@ -509,7 +470,7 @@ export function ServerManager() {
                         </TableCell>
                         <TableCell>
                           <div className="flex items-center gap-2">
-                            <Server className="h-4 w-4 text-[var(--dg-text-muted)]" />
+                            <ServerIcon className="h-4 w-4 text-[var(--dg-text-muted)]" />
                             <div>
                               <p className="font-medium text-[var(--dg-text-primary)]">{server.hostname}</p>
                               <p className="text-xs text-[var(--dg-text-muted)]">{server.os}</p>
@@ -609,15 +570,13 @@ export function ServerManager() {
                                   <Edit className="h-4 w-4 mr-2" />
                                   编辑
                                 </DropdownMenuItem>
-                                <DropdownMenuItem className="text-[var(--dg-text-secondary)] focus:bg-[var(--dg-bg-hover)] focus:text-[var(--dg-text-primary)] cursor-pointer" onClick={() => openTerminal(server)}>
+                                <DropdownMenuItem className="text-[var(--dg-text-secondary)] focus:bg-[var(--dg-bg-hover)] focus:text-[var(--dg-text-primary)] cursor-pointer"
+                                  onClick={() => openTerminal(server)}
+                                >
                                   <Terminal className="h-4 w-4 mr-2" />
                                   终端
                                 </DropdownMenuItem>
                                 <DropdownMenuSeparator className="bg-[var(--dg-border)]" />
-                                <DropdownMenuItem className="text-[var(--dg-text-secondary)] focus:bg-[var(--dg-bg-hover)] focus:text-[var(--dg-text-primary)] cursor-pointer">
-                                  <RotateCw className="h-4 w-4 mr-2" />
-                                  重启
-                                </DropdownMenuItem>
                                 <DropdownMenuItem
                                   className="text-red-400 focus:bg-[var(--dg-bg-hover)] focus:text-red-400 cursor-pointer"
                                   onClick={() => handleDelete(server.id)}

frontend/src/components/server/ServerStatsCards.tsx

@@ -0,0 +1,70 @@
+// 服务器统计卡片组件 — 从 ServerManager 提取 // Logan.Li
+import { Card, CardContent } from '@/components/ui/card';
+import { Server, Activity, RotateCw, Power } from 'lucide-react';
+
+interface ServerStatsCardsProps {
+  servers: any[];
+}
+
+export function ServerStatsCards({ servers }: ServerStatsCardsProps) {
+  const runningCount = servers.filter((s) => s.status === 'running').length;
+  const maintenanceCount = servers.filter((s) => s.status === 'maintenance').length;
+  const stoppedCount = servers.filter((s) => s.status === 'stopped').length;
+
+  return (
+    <div className="grid grid-cols-1 md:grid-cols-4 gap-4">
+      <Card className="bg-[var(--dg-bg-secondary)] border-[var(--dg-border)]">
+        <CardContent className="p-4">
+          <div className="flex items-center justify-between">
+            <div>
+              <p className="text-sm text-[var(--dg-text-muted)]">服务器总数</p>
+              <p className="text-2xl font-bold text-[var(--dg-text-primary)]">{servers.length}</p>
+            </div>
+            <div className="p-3 rounded-lg bg-[var(--dg-blue)]/10 text-[var(--dg-blue)]">
+              <Server className="h-5 w-5" />
+            </div>
+          </div>
+        </CardContent>
+      </Card>
+      <Card className="bg-[var(--dg-bg-secondary)] border-[var(--dg-border)]">
+        <CardContent className="p-4">
+          <div className="flex items-center justify-between">
+            <div>
+              <p className="text-sm text-[var(--dg-text-muted)]">运行中</p>
+              <p className="text-2xl font-bold text-emerald-400">{runningCount}</p>
+            </div>
+            <div className="p-3 rounded-lg bg-emerald-500/10 text-emerald-400">
+              <Activity className="h-5 w-5" />
+            </div>
+          </div>
+        </CardContent>
+      </Card>
+      <Card className="bg-[var(--dg-bg-secondary)] border-[var(--dg-border)]">
+        <CardContent className="p-4">
+          <div className="flex items-center justify-between">
+            <div>
+              <p className="text-sm text-[var(--dg-text-muted)]">维护中</p>
+              <p className="text-2xl font-bold text-amber-400">{maintenanceCount}</p>
+            </div>
+            <div className="p-3 rounded-lg bg-amber-500/10 text-amber-400">
+              <RotateCw className="h-5 w-5" />
+            </div>
+          </div>
+        </CardContent>
+      </Card>
+      <Card className="bg-[var(--dg-bg-secondary)] border-[var(--dg-border)]">
+        <CardContent className="p-4">
+          <div className="flex items-center justify-between">
+            <div>
+              <p className="text-sm text-[var(--dg-text-muted)]">已停止</p>
+              <p className="text-2xl font-bold text-[var(--dg-text-muted)]">{stoppedCount}</p>
+            </div>
+            <div className="p-3 rounded-lg bg-[var(--dg-bg-tertiary)] text-[var(--dg-text-secondary)]">
+              <Power className="h-5 w-5" />
+            </div>
+          </div>
+        </CardContent>
+      </Card>
+    </div>
+  );
+}