feat: Agent采集uptime, 后端持久化kernel/uptime/diskIO, 前端磁盘BPS+IOPS展示

- Agent: system.go 添加 readUptime(), SystemStat 携带 Uptime
- Backend: Server 模型新增 Kernel 字段, ReceiveReport 持久化 kernel+uptime
- Backend: /agent/latest 返回 kernel/uptime/port_info/disk_io_info/disk_total
- Frontend: 磁盘监控改为 BPS+IOPS (4张卡片), 系统信息修复内核/运行时长/监听端口/磁盘容量
- 图表单位从 MB/s 改为 KB/s, 添加 formatBPS 工具函数

frontend/src/components/server/ServerManager.tsx

@@ -37,10 +37,8 @@ import {
   Cloud,
   FileSpreadsheet,
   RefreshCw,
-  Rocket,
   ChevronLeft,
   ChevronRight,
-  Cpu,
 } from 'lucide-react';
 import { serverApi } from '@/services/api';
 import { ServerStatsCards } from './ServerStatsCards';
@@ -53,7 +51,6 @@ import { ExcelServerImport } from './ExcelServerImport';
 import { ServerForm, EMPTY_FORM, type ServerFormData } from './ServerForm';
 import { getTags } from './serverHelpers';
 import { ServerTableRow } from './ServerTableRow';
-import { AgentWizard } from '@/components/agent/AgentWizard';
 
 export function ServerManager() {
   const confirm = useConfirm();
@@ -74,60 +71,15 @@ export function ServerManager() {
 
   // 终端 Dialog 状态
   const [terminalOpen, setTerminalOpen] = useState(false);
-  const [terminalServer, setTerminalServer] = useState<{ id: number; name: string; ip: string } | null>(null);
+  const [terminalServer, setTerminalServer] = useState<{ id: number; name: string; ip: string; hasAuth?: boolean } | null>(null);
 
   // 分页状态
   const [page, setPage] = useState(1);
   const [pageSize, setPageSize] = useState(10);
   const [total, setTotal] = useState(0);
 
-  // Agent 安装向导状态
-  const [agentWizardOpen, setAgentWizardOpen] = useState(false);
-  const [wizardServer, setWizardServer] = useState<any>(null);
-  // Agent 安装状态: { [serverId]: 'installing' | 'success' | 'failed' }
-  const [installingIds, setInstallingIds] = useState<Set<number>>(new Set());
-  const [installResults, setInstallResults] = useState<Map<number, { success: boolean; message: string }>>(new Map());
-
-  const openInstallAgent = (server: any) => {
-    setWizardServer(server);
-    setAgentWizardOpen(true);
-  };
-
-  const handleBatchInstallAgents = async () => {
-    const token = useUserStore.getState().token;
-    if (!token) { toast.error('请先登录'); return; }
-    const ids = selectedServers.map(id => Number(id));
-    
-    setInstallingIds(prev => {
-      const next = new Set(prev);
-      ids.forEach(id => next.add(id));
-      return next;
-    });
-    
-    try {
-      const res: any = await serverApi.batchInstallAgent(ids, token);
-      const results = res?.results || [];
-      setInstallResults(prev => {
-        const next = new Map(prev);
-        results.forEach((r: any) => {
-          next.set(r.server_id, { success: r.installed, message: r.message });
-        });
-        return next;
-      });
-      toast.success(`批量安装完成: ${res?.success || 0}/${ids.length} 成功`);
-    } catch (e: any) {
-      toast.error(`批量安装失败: ${e?.message || '未知错误'}`);
-    } finally {
-      setInstallingIds(prev => {
-        const next = new Set(prev);
-        ids.forEach(id => next.delete(id));
-        return next;
-      });
-    }
-  };
-
   const openTerminal = (server: any) => {
-    setTerminalServer({ id: server.id, name: server.hostname, ip: server.ip });
+    setTerminalServer({ id: server.id, name: server.hostname, ip: server.ip, hasAuth: server.has_auth ?? true });
     setTerminalOpen(true);
   };
 
@@ -444,8 +396,8 @@ export function ServerManager() {
                 onClick={() => setExcelImportOpen(true)}
               >
                 <FileSpreadsheet className="h-4 w-4 mr-2 text-emerald-400" />
-                Excel导入
-                <span className="ml-2 text-xs text-[var(--dg-text-muted)]">批量导入服务器</span>
+                CSV导入
+                <span className="ml-2 text-xs text-[var(--dg-text-muted)]">hostname + IP 即可</span>
               </DropdownMenuItem>
             </DropdownMenuContent>
           </DropdownMenu>
@@ -493,15 +445,6 @@ 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"
-                  onClick={handleBatchInstallAgents}
-                  className="border-[var(--dg-cyan)]/30 text-[var(--dg-cyan)] hover:bg-[var(--dg-cyan)]/10"
-                >
-                  <Cpu className="h-4 w-4 mr-2" />
-                  批量安装Agent
-                </Button>
                 <Button
                   variant="outline"
                   size="sm"
@@ -562,9 +505,6 @@ export function ServerManager() {
                       onOpenTerminal={openTerminal}
                       onOpenEdit={openEditForm}
                       onDelete={handleDelete}
-                      onInstallAgent={openInstallAgent}
-                      installing={installingIds.has(server.id)}
-                      installResult={installResults.get(server.id) || null}
                     />
                   ))
                 )}
@@ -645,32 +585,6 @@ export function ServerManager() {
         }}
       />
 
-      {/* Agent 安装向导 */}
-      <AgentWizard 
-        open={agentWizardOpen} 
-        onOpenChange={(open) => {
-          setAgentWizardOpen(open);
-          if (!open) setWizardServer(null);
-        }}
-        server={wizardServer}
-        onInstalled={(serverId) => {
-          setInstallResults(prev => {
-            const next = new Map(prev);
-            next.set(serverId, { success: true, message: 'Agent 已安装' });
-            return next;
-          });
-          // 刷新列表以更新 agent_status
-          loadData();
-        }}
-        onFailed={(serverId, msg) => {
-          setInstallResults(prev => {
-            const next = new Map(prev);
-            next.set(serverId, { success: false, message: msg || '安装失败' });
-            return next;
-          });
-        }}
-      />
-
       {/* 终端 Dialog */}
       <TerminalDialog
         open={terminalOpen}
@@ -678,6 +592,7 @@ export function ServerManager() {
         serverId={terminalServer?.id ?? null}
         serverName={terminalServer?.name ?? ''}
         serverIp={terminalServer?.ip ?? ''}
+        hasAuth={terminalServer?.hasAuth ?? true}
       />
     </div>
   );