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/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">