fix: scope MCP configuration to Codex and stabilize Windows launchers

scripts/start.ps1

@@ -356,10 +356,10 @@ if (-not (Test-Path -LiteralPath (Join-Path $RootDir '.env'))) {
     }
 }
 if (-not $SkipMcpSync) {
-    Write-Host (Get-LaunchText '   [CHECK] Installing/updating MCP for detected AI clients...' '   [检查] 正在为检测到的 AI 客户端安装或更新 MCP...') -ForegroundColor Cyan
+    Write-Host (Get-LaunchText '   [CHECK] Installing/updating Codex MCP...' '   [检查] 正在安装或更新 Codex MCP...') -ForegroundColor Cyan
     & $ArtemisPython (Join-Path $ScriptDir 'update_installation.py') mcp
     if ($LASTEXITCODE -ne 0) {
-        Write-Host (Get-LaunchText '   [ERROR] MCP synchronization failed. Fix the configuration above, or use -SkipMcpSync to run the web UI without MCP.' '   [错误] MCP 同步失败。请修复上方配置；仅需启动网页时可使用 -SkipMcpSync。') -ForegroundColor Red
+        Write-Host (Get-LaunchText '   [ERROR] Codex MCP synchronization failed. Fix the configuration above, or use -SkipMcpSync to run the web UI without MCP.' '   [错误] Codex MCP 同步失败。请修复上方配置；仅需启动网页时可使用 -SkipMcpSync。') -ForegroundColor Red
         exit 1
     }
 } else {