feat(rdp): 新增 RDP 远程桌面/SMB/账单同步能力 + 清理编译产物

主要变更：
- RDP 远程桌面：新增 backend/pkg/rdp（RDP 引擎 + credssp/display/rle/trace）、
  backend/controller/rdp*（连接/凭证/文件/会话/实时）、frontend RDP 组件与 API
- Windows SMB 文件传输：backend/pkg/winsmb
- 云账单同步：backend/pkg/billingsync + billing_sync/aliyun_billing，前端账单详情
- Agent CLI Kubernetes 工具：kubernetes_action/get、pod_execute/logs
- 服务器导入助手：server_import_helpers、ImportCredentialSettings
- 国际化与组件重构（cloud/deploy/monitor/server/system 等多模块）
- 清理编译产物二进制：移除 backend/server、backend/agent/bin/aiops-agent-*
- .gitignore：新增 backend/agent/ 与 .cache/（避免 334MB go-build 缓存误入库）

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

frontend/src/pages/approval/ApprovalWorkflowPage.tsx

@@ -15,6 +15,7 @@ import { approvalWorkflowApi, userApi } from '@/api';
 import { useConfirm } from '@/components/ui/confirm-dialog';
 import { PageShell } from '@/components/layout/PageShell';
 import { PageEmpty } from '@/components/layout/PageEmpty';
+import type { JsonData } from '@/types/common';
 
 /* ------------------------------------------------------------------ */
 /*  Types                                                               */
@@ -482,9 +483,9 @@ export default function ApprovalWorkflowPage() {
     try {
       setLoading(true);
       setError(null);
-      const res: any = await approvalWorkflowApi.list();
-      const data = Array.isArray(res?.list) ? res.list : (Array.isArray(res) ? res : []);
-      const normalized = data.map((w: any) => ({ ...w, steps: w.steps || [] }));
+      const res: JsonData | JsonData[] = await approvalWorkflowApi.list();
+      const data = Array.isArray(res) ? res : (Array.isArray(res.list) ? res.list : []);
+      const normalized = data.map((w) => ({ ...w, steps: w.steps || [] }));
       setItems(normalized);
     } catch {
       setError(t('approval.msg.fetchFailed'));
@@ -495,10 +496,10 @@ export default function ApprovalWorkflowPage() {
 
   const fetchUsers = useCallback(async () => {
     try {
-      const res: any = await userApi.getUsers();
-      const data = Array.isArray(res?.list) ? res.list : (Array.isArray(res) ? res : []);
+      const res: JsonData | JsonData[] = await userApi.getUsers();
+      const data = Array.isArray(res) ? res : (Array.isArray(res.list) ? res.list : []);
       // Normalize: extract role code from roles array
-      const normalized = data.map((u: any) => {
+      const normalized = data.map((u) => {
         let role = u.role ?? '';
         if (!role && Array.isArray(u.roles) && u.roles.length > 0) {
           const first = u.roles[0];