Fix entity name vanishing from a prompt, and report the effective protocol

Running the wizard under pwsh turned up two things review missed:

"...dated folders for $entityName?" rendered as "...dated folders for "
- ? is a legal character in an unbraced PowerShell variable name, so
  this looked up a variable called entityName? and got nothing. Braced.

The settings screen showed "over (not set)" for a config whose protocol
comes from an ftps:// prefix on the host, which is exactly the case
worth spotting. It now reports what the upload will actually use, marked
"(assumed)" when it was inferred rather than set.

Setup-Entity.ps1

@@ -211,7 +211,7 @@ function New-Entity {
     $pdfPath = $null
     Write-Host "Some entities get PT STMT files mixed into the same dated folder," -ForegroundColor DarkGray
     Write-Host "and those go to a different folder on the server." -ForegroundColor DarkGray
-    if (Read-YesNo "Do PT STMT files show up in the dated folders for $entityName?" "n") {
+    if (Read-YesNo "Do PT STMT files show up in the dated folders for ${entityName}?" "n") {
         $pdfPath = Read-RemotePath "the PT STMT files" $null
     }
 
@@ -415,18 +415,16 @@ function Set-Field($object, $name, $value) {
 }
 
 function Show-Settings($config) {
-    $proto = if ($config.ftps.protocol) { $config.ftps.protocol.ToUpper() } else { "(not set)" }
     Write-Host ""
     Write-Host "  Daily upload" -ForegroundColor White
-    Write-Host "    Server    : $(Show-Value $config.ftps.host) over $proto"
+    Write-Host "    Server    : $(Show-Value $config.ftps.host) over $(Show-Protocol $config.ftps 'ftp')"
     Write-Host "    Login     : $(Show-Value $config.ftps.username) / $(Show-Password $config.ftps.password)"
     Write-Host "    Images to : $(Show-Value $config.ftps.tiff_path)"
     Write-Host "    PT STMT to: $(Show-Value $config.ftps.pdf_path)"
     Write-Host ""
     Write-Host "  Patient files" -ForegroundColor White
     if ($config.workflow -eq "insurance+patient") {
-        $pproto = if ($config.sftp.protocol) { $config.sftp.protocol.ToUpper() } else { "(not set)" }
+        Write-Host "    Server    : $(Show-Value $config.sftp.host) over $(Show-Protocol $config.sftp 'sftp')"
-        Write-Host "    Server    : $(Show-Value $config.sftp.host) over $pproto"
         Write-Host "    Login     : $(Show-Value $config.sftp.username) / $(Show-Password $config.sftp.password)"
         Write-Host "    Files to  : $(Show-Value $config.sftp.patient_path)"
     } else {
@@ -434,6 +432,15 @@ function Show-Settings($config) {
     }
 }
 
+# Reports the protocol the upload will actually use, so a legacy config that
+# only carries an "ftps://" prefix on the host doesn't read as unset.
+function Show-Protocol($conn, $fallback) {
+    if ([string]::IsNullOrWhiteSpace([string]$conn.host)) { return "(not set)" }
+    $protocol = (Get-ConnProtocol $conn $fallback).ToUpper()
+    if ($conn.protocol) { return $protocol }
+    return "$protocol (assumed)"
+}
+
 function Show-Value($value) {
     if ([string]::IsNullOrWhiteSpace([string]$value)) { return "(not set)" }
     return [string]$value