fix: Windows service via NSSM (sc.exe incompatible)

Error 1053 — sc.exe alone cannot run non-service-aware .exe.
ntfy-bridge needs NSSM (Non-Sucking Service Manager) wrapper.

- service.v: --install-service uses nssm.exe (auto-detect PATH or dir)
- scripts/install.ps1: auto-downloads NSSM 2.24 before installing
- Falls back to sc.exe for uninstall/status if nssm not found

scripts/install.ps1

@@ -16,25 +16,50 @@ Write-Host ""
 $v = Get-Command v -ErrorAction SilentlyContinue
 if (-not $v) {
     Write-Host "V compiler not found. Downloading..."
-    
-    # Download V weekly build
+
     $vUrl = "https://github.com/vlang/v/releases/download/weekly.2024.32/v_windows.zip"
     $vZip = "$env:TEMP\v_windows.zip"
     $vDir = "$env:LOCALAPPDATA\v"
-    
+
     Invoke-WebRequest -Uri $vUrl -OutFile $vZip
     Expand-Archive -Path $vZip -DestinationPath $vDir -Force
     Remove-Item $vZip
-    
+
     $env:PATH = "$vDir\v;$env:PATH"
     Write-Host "V installed to $vDir"
 }
 
+# Install NSSM (required for Windows service)
+$nssmPath = "$env:ProgramFiles\ntfy-bridge\nssm.exe"
+if (-not (Test-Path $nssmPath)) {
+    Write-Host "Downloading NSSM (Non-Sucking Service Manager)..."
+    $nssmUrl = "https://nssm.cc/release/nssm-2.24.zip"
+    $nssmZip = "$env:TEMP\nssm.zip"
+    $nssmDir = "$env:TEMP\nssm_extract"
+
+    Invoke-WebRequest -Uri $nssmUrl -OutFile $nssmZip
+    Expand-Archive -Path $nssmZip -DestinationPath $nssmDir -Force
+
+    # Find nssm.exe in the extracted folder (it's in a win64 subfolder)
+    $nssmExe = Get-ChildItem -Path $nssmDir -Recurse -Name "nssm.exe" | Select-Object -First 1
+    if (-not $nssmExe) {
+        Write-Error "Could not find nssm.exe in the downloaded archive."
+        exit 1
+    }
+    $extractedNssm = Join-Path $nssmDir $nssmExe
+
+    New-Item -ItemType Directory -Force -Path "$env:ProgramFiles\ntfy-bridge" | Out-Null
+    Copy-Item -Force $extractedNssm $nssmPath
+    Remove-Item $nssmZip
+    Remove-Item -Recurse -Force $nssmDir
+    Write-Host "NSSM installed to $nssmPath"
+}
+
 # Build
 Write-Host "Building ntfy-bridge..."
 v -prod -o ntfy-bridge.exe .
 
-# Copy to a permanent location
+# Copy to install directory
 $installDir = "$env:ProgramFiles\ntfy-bridge"
 New-Item -ItemType Directory -Force -Path $installDir | Out-Null
 Copy-Item -Force ntfy-bridge.exe $installDir\
@@ -47,9 +72,9 @@ if (-not (Test-Path "$installDir\ntfy-bridge.yaml")) {
     Write-Host "  ⚠️  Edit $installDir\ntfy-bridge.yaml to configure your sources!" -ForegroundColor Yellow
 }
 
-# Install as Windows service
+# Install as Windows service (via NSSM)
 Write-Host "Installing as Windows service..."
-& "$installDir\ntfy-bridge.exe" --install-service --config "$installDir\ntfy-bridge.yaml" 2>&1 | Out-Null
+& "$installDir\ntfy-bridge.exe" --install-service --config "$installDir\ntfy-bridge.yaml" 2>&1 | Write-Host
 
 Write-Host ""
 Write-Host "Done! ntfy-bridge is installed and running as a Windows service." -ForegroundColor Green
@@ -60,6 +85,9 @@ Write-Host "  Dashboard:   http://localhost:9090/"
 Write-Host "  Health:      http://localhost:9090/health"
 Write-Host ""
 Write-Host "  Service commands:"
-Write-Host "    sc query ntfy-bridge"
-Write-Host "    sc stop ntfy-bridge"
-Write-Host "    sc start ntfy-bridge"
+Write-Host "    nssm status ntfy-bridge"
+Write-Host "    nssm stop ntfy-bridge"
+Write-Host "    nssm start ntfy-bridge"
+Write-Host "    nssm remove ntfy-bridge confirm  (uninstall)"
+Write-Host ""
+Write-Host "  Logs: C:\ProgramData\ntfy-bridge\service.log"