Fix ROA Windows setup scripts discovered during VM 302 testing

- 03-import-contafin.ps1: Auto-detect DMP file when not specified
- 05-import-companies.ps1: Default DumpDirectory to C:\DMPDIR
- 08-post-install-config.ps1: Fix SERVER_INFO column names (NAME/VALUE)

Tested full installation on VM 302 (Oracle XE 21c):
- CONTAFIN_ORACLE: 344 objects imported
- CAPIDAVATOUR: 3418 objects imported
- 54 ROAUPDATE directories created
- Scheduler jobs configured

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

proxmox/lxc108-oracle/roa-windows-setup/scripts/05-import-companies.ps1

@@ -16,7 +16,7 @@
     5. Logs progress
 
 .PARAMETER DumpDirectory
-    Directory containing company DMP files. Required.
+    Directory containing company DMP files. If not specified, defaults to C:\DMPDIR.
 
 .PARAMETER OracleHome
     Oracle home directory. If not specified, auto-detects.
@@ -53,9 +53,8 @@
 
 [CmdletBinding()]
 param(
-    [Parameter(Mandatory = $true)]
-    [ValidateScript({ Test-Path $_ -PathType Container })]
-    [string]$DumpDirectory,
+    [Parameter(Mandatory = $false)]
+    [string]$DumpDirectory = "C:\DMPDIR",
 
     [Parameter(Mandatory = $false)]
     [string]$OracleHome,
@@ -89,6 +88,12 @@ Initialize-LogFile -LogPath $logPath -ScriptName "05-import-companies.ps1"
 try {
     Write-LogSection "Batch Import Company Schemas"
 
+    # Validate DumpDirectory exists
+    if (-not (Test-Path $DumpDirectory -PathType Container)) {
+        throw "DumpDirectory not found: $DumpDirectory"
+    }
+    Write-Log "Using dump directory: $DumpDirectory"
+
     if ($DryRun) {
         Write-LogWarning "DRY RUN MODE - No changes will be made"
     }