fix: wrap main execution in try/catch to show errors instead of silent exit

scripts/install.ps1

@@ -1041,24 +1041,25 @@ function Invoke-Upgrade {
 # ─────────────────────────────────────────
 # 主流程
 # ─────────────────────────────────────────
-"" | Out-File $LOG_FILE
+try {
+    "" | Out-File $LOG_FILE
 
-# 检测是否是 iex / 管道执行（如 irm | iex）
+    # 检测是否是 iex / 管道执行（如 irm | iex）
-$isIexExecution = -not $PSCommandPath
+    $isIexExecution = -not $PSCommandPath
 
-Setup-InstallDir
+    Setup-InstallDir
-Check-Prerequisites
+    Check-Prerequisites
-Collect-Status
+    Collect-Status
 
-Write-Host ""
+    Write-Host ""
-Write-Host "╔══════════════════════════════════════════════════════════════════╗" -ForegroundColor White
+    Write-Host "╔══════════════════════════════════════════════════════════════════╗" -ForegroundColor White
-Write-Host "║                    HAPI 系统状态                                 ║" -ForegroundColor White
+    Write-Host "║                    HAPI 系统状态                                 ║" -ForegroundColor White
-Write-Host "╚══════════════════════════════════════════════════════════════════╝" -ForegroundColor White
+    Write-Host "╚══════════════════════════════════════════════════════════════════╝" -ForegroundColor White
-Write-Host ""
+    Write-Host ""
-Print-Status
+    Print-Status
 
-# 非交互模式（irm | iex）
+    # 非交互模式（irm | iex）
-if ($isIexExecution) {
+    if ($isIexExecution) {
         if ($Upgrade) {
             Invoke-Upgrade
             Start-Sleep 3
@@ -1077,9 +1078,16 @@ if ($isIexExecution) {
         Write-Host ""
         Start-Sleep 3
         exit
-}
+    }
 
-# 交互菜单
+    # 交互菜单
-while ($true) {
+    while ($true) {
         Main-Menu
+    }
+} catch {
+    Write-Host ""
+    Write-Err "脚本错误: $_"
+    Write-Host "按 Enter 退出..."
+    $null = Read-Host
+    exit 1
 }