fix(mcp): use native binary for TRAE on Windows

apps/desktop/src/lib/__tests__/mcp/mcpConfigTemplates.spec.ts

@@ -1,5 +1,5 @@
 import { describe, expect, it } from "vitest";
-import { buildMcpCherryStudioConfig, buildMcpCodexConfig, buildMcpJsonConfig, buildMcpOpenCodeConfig, buildMcpVsCodeConfig, mcpWebBackendUrl } from "@/lib/mcp/mcpConfigTemplates";
+import { buildMcpCherryStudioConfig, buildMcpCodexConfig, buildMcpJsonConfig, buildMcpOpenCodeConfig, buildMcpTraeConfig, buildMcpVsCodeConfig, mcpWebBackendUrl } from "@/lib/mcp/mcpConfigTemplates";
 
 describe("MCP config templates", () => {
   it("builds the standard mcpServers JSON used by Claude, Cursor, TRAE, and Windsurf", () => {
@@ -27,6 +27,21 @@ describe("MCP config templates", () => {
     });
   });
 
+  it("uses the native binary for TRAE when Windows Node lives under Program Files", () => {
+    const nodeLaunch = {
+      command: "C:\\Program Files\\nodejs\\node.exe",
+      args: ["C:\\Users\\supervisor\\AppData\\Roaming\\npm\\node_modules\\@dbx-app\\mcp-server\\bin\\dbx-mcp-server.js"],
+    };
+    const nativeBinPath = "C:\\Users\\supervisor\\AppData\\Roaming\\npm\\node_modules\\@dbx-app\\mcp-win32-x64\\bin\\dbx-mcp.exe";
+
+    expect(JSON.parse(buildMcpTraeConfig(nodeLaunch, nativeBinPath))).toEqual({
+      mcpServers: { dbx: { command: nativeBinPath } },
+    });
+    expect(JSON.parse(buildMcpTraeConfig(nodeLaunch))).toEqual({
+      mcpServers: { dbx: nodeLaunch },
+    });
+  });
+
   it("includes Web runtime settings without restoring permission environment variables", () => {
     const launch = {
       command: "dbx-mcp-server",

apps/desktop/src/lib/backend/http.ts

@@ -2306,6 +2306,7 @@ export async function checkMcpServerStatus(): Promise<import("@/lib/backend/taur
     latest_version: null,
     update_available: false,
     bin_path: null,
+    native_bin_path: null,
     script_path: null,
     install_command: "npm install -g @dbx-app/mcp-server@latest --registry=https://registry.npmjs.org",
     update_command: "npm install -g @dbx-app/mcp-server@latest --registry=https://registry.npmjs.org",

apps/desktop/src/lib/backend/tauri.ts

@@ -1449,6 +1449,7 @@ export interface McpServerStatus {
   latest_version: string | null;
   update_available: boolean;
   bin_path: string | null;
+  native_bin_path: string | null;
   script_path: string | null;
   install_command: string;
   update_command: string;

apps/desktop/src/lib/mcp/mcpConfigTemplates.ts

@@ -40,6 +40,10 @@ export function buildMcpJsonConfig(config?: McpLaunchConfig): string {
   return JSON.stringify({ mcpServers: { dbx } }, null, 2);
 }
 
+export function buildMcpTraeConfig(config?: McpLaunchConfig, nativeBinPath?: string): string {
+  return buildMcpJsonConfig(nativeBinPath ? { command: nativeBinPath } : config);
+}
+
 export function buildMcpVsCodeConfig(config?: McpLaunchConfig): string {
   const dbx: Record<string, unknown> = {
     type: "stdio",