Fix deploy app-base rewrite path for published wwwroot

scripts/deploy-ftp.ps1

@@ -112,9 +112,14 @@ function Set-FrontendAppBaseMeta {
         [Parameter(Mandatory = $true)][string]$BasePath
     )
 
-    $indexPath = Join-Path $PublishDir "index.html"
-    if (-not (Test-Path $indexPath)) {
-        throw "Publish output is missing index.html at '$indexPath'."
+    $candidatePaths = @(
+        (Join-Path $PublishDir "wwwroot\index.html"),
+        (Join-Path $PublishDir "index.html")
+    )
+
+    $indexPath = $candidatePaths | Where-Object { Test-Path $_ } | Select-Object -First 1
+    if ([string]::IsNullOrWhiteSpace($indexPath)) {
+        throw "Publish output is missing index.html. Checked: $($candidatePaths -join ", ")."
     }
 
     $pattern = '<meta\s+name=["'']app-base["'']\s+content=["''][^"'']*["'']\s*/?>'