chore(github): generic NETLOGON paths, remove mirror scripts

Replace \\B26\\NETLOGON with \\dc.contoso.local\\NETLOGON.
Remove scripts/ mirror tools and tools/Push-KalinamallOnly.ps1.
Sanitize login_monitor.settings.example (placeholders, no secrets).
Simplify update-rdp-monitor.ps1 to use origin remote only.
Keep dev tooling under tools/ only.

Co-authored-by: Cursor <cursoragent@cursor.com>

tools/Show-Rdp4624Recent.ps1

@@ -3,7 +3,7 @@
     Просмотр недавних 4624 с полями для диагностики RDP-login-monitor.
 .EXAMPLE
     .\Show-Rdp4624Recent.ps1
-    .\Show-Rdp4624Recent.ps1 -Minutes 30 -User papatramp
+    .\Show-Rdp4624Recent.ps1 -Minutes 30 -User jdoe
 #>
 [CmdletBinding()]
 param(