fix(Test-WeakADPasswords): add comprehensive DCSync diagnostic dump

When Get-ADReplAccount or Test-PasswordQuality throws, the catch
block now dumps the full exception chain (type, message, HResult,
source, target site, stack trace, inner exceptions) along with
runtime context (Elysium version, PS version, DSInternals version,
DC, domain, account). Output goes to console and a timestamped
 diagnostic file under Reports/ for offline analysis.

Test-WeakADPasswords.ps1

@@ -631,16 +631,62 @@ function Test-WeakADPasswords {
         $testResults = $accounts | Test-PasswordQuality -WeakPasswordHashesSortedFile $resolvedHashFile.Path
         Write-Verbose "Password quality test completed."
     } catch {
-        $message = $_.Exception.Message
+        $ex = $_.Exception
+        $diagLines = [System.Collections.Generic.List[string]]::new()
+        $diagLines.Add('========================================')
+        $diagLines.Add('ELYSLUM DCSYNC DIAGNOSTIC DUMP')
+        $diagLines.Add('========================================')
+        $diagLines.Add("Timestamp    : $(Get-Date -Format 'yyyy-MM-dd HH:mm:ss')")
+        $diagLines.Add("Script Ver   : $ElysiumVersion")
+        $diagLines.Add("PS Version   : $($PSVersionTable.PSVersion)")
+        $diagLines.Add("PS Edition   : $($PSVersionTable.PSEdition)")
+        $diagLines.Add("DSInternals  : $((Get-Module -Name DSInternals).Version)")
+        $diagLines.Add("DC           : $($selectedDomain['DC'])")
+        $diagLines.Add("Domain       : $($selectedDomain.Name)")
+        $diagLines.Add("Account      : $($credential.UserName)")
+        $diagLines.Add("DomainDN     : $($domainInfo.DistinguishedName)")
+        $diagLines.Add('')
+        $diagLines.Add('--- EXCEPTION CHAIN ---')
+        $depth = 0
+        $currentEx = $ex
+        while ($null -ne $currentEx) {
+            $diagLines.Add("Exception $depth : $($currentEx.GetType().FullName)")
+            $diagLines.Add("  Message    : $($currentEx.Message)")
+            $diagLines.Add("  HResult    : 0x$($currentEx.HResult.ToString('X8'))")
+            $diagLines.Add("  Source     : $($currentEx.Source)")
+            if ($currentEx.TargetSite) {
+                $diagLines.Add("  TargetSite : $($currentEx.TargetSite)")
+            }
+            if ($currentEx.StackTrace) {
+                $diagLines.Add("  StackTrace :`n$($currentEx.StackTrace -replace '^', '    ')")
+            }
+            $diagLines.Add('')
+            $currentEx = $currentEx.InnerException
+            $depth++
+        }
+        $diagLines.Add('--- END DIAGNOSTIC DUMP ---')
+
+        $diagText = $diagLines -join "`r`n"
+        Write-Host $diagText -ForegroundColor Red
+
+        $diagPath = Join-Path -Path $reportPathBase -ChildPath "dcsync-diag-$timestamp.txt"
+        try {
+            New-Item -ItemType Directory -Path $reportPathBase -Force | Out-Null
+            [System.IO.File]::WriteAllText($diagPath, $diagText, [System.Text.Encoding]::UTF8)
+            Write-Host ("Diagnostic dump written to: {0}" -f $diagPath)
+        } catch {
+            Write-Warning ("Could not write diagnostic dump to disk: {0}" -f $_.Exception.Message)
+        }
+
+        # Still emit the concise error for the operator
+        $message = $ex.Message
         if ($message -match 'Access is denied') {
             Write-Error ("Access denied while reading replication data from '{0}' using '{1}'. Ensure this account has Replicating Directory Changes, Replicating Directory Changes All, and Replicating Directory Changes In Filtered Set on the domain." -f $selectedDomain["DC"], $credential.UserName)
-            return
+        } elseif ($message -match 'rejected the client credentials|unknown user name|bad password|logon failure') {
-        }
-        if ($message -match 'rejected the client credentials|unknown user name|bad password|logon failure') {
             Write-Error ("Credentials for '{0}' were rejected by '{1}'. Re-run and provide valid domain credentials." -f $credential.UserName, $selectedDomain["DC"])
-            return
+        } else {
-        }
             Write-Error ("An error occurred while testing passwords: {0}" -f $message)
+        }
         return
     } finally {
         if ($resolvedHashFile -and $resolvedHashFile.IsTemporary -and (Test-Path -LiteralPath $resolvedHashFile.Path)) {