docs: add Docs/ guides; Exchange Mail Security scripts (v1.6.0)

- Docs: RDP deploy, Exchange mail security, NETLOGON publish
- Exchange-MailSecurity.ps1, Notify-Common, Deploy/Install-DomainMonitors
- DEPLOY.md redirects to Docs/

Install-DomainMonitors.ps1

@@ -0,0 +1,51 @@
+<#
+.SYNOPSIS
+    Регистрирует задачи планировщика для доменных мониторов (Exchange; AD — позже).
+.PARAMETER Target
+    Exchange — Exchange-MailSecurity.ps1; Ad — зарезервировано.
+#>
+[CmdletBinding()]
+param(
+    [ValidateSet('Exchange', 'Ad')]
+    [Parameter(Mandatory = $true)]
+    [string]$Target
+)
+
+Set-StrictMode -Version Latest
+$ErrorActionPreference = 'Stop'
+
+$InstallRoot = [System.IO.Path]::GetFullPath("$env:ProgramData\RDP-login-monitor")
+$PsExe = "$env:SystemRoot\System32\WindowsPowerShell\v1.0\powershell.exe"
+
+function Test-RunningElevated {
+    $id = [Security.Principal.WindowsIdentity]::GetCurrent()
+    if ($null -ne $id.User -and $id.User.Value -eq 'S-1-5-18') { return $true }
+    $p = New-Object Security.Principal.WindowsPrincipal($id)
+    return $p.IsInRole([Security.Principal.WindowsBuiltInRole]::Administrator)
+}
+
+if (-not (Test-RunningElevated)) {
+    throw 'Запустите Install-DomainMonitors.ps1 от имени администратора.'
+}
+
+switch ($Target) {
+    'Exchange' {
+        $scriptPath = Join-Path $InstallRoot 'Exchange-MailSecurity.ps1'
+        if (-not (Test-Path -LiteralPath $scriptPath)) {
+            throw "Не найден: $scriptPath"
+        }
+        $notifyPath = Join-Path $InstallRoot 'Notify-Common.ps1'
+        if (-not (Test-Path -LiteralPath $notifyPath)) {
+            throw "Не найден: $notifyPath"
+        }
+        & $PsExe -NoProfile -ExecutionPolicy Bypass -File $scriptPath -InstallTasks
+        if ($LASTEXITCODE -ne 0) { exit $LASTEXITCODE }
+        Write-Host "Exchange: задачи планировщика зарегистрированы."
+    }
+    'Ad' {
+        Write-Host 'AD-SecurityMonitor.ps1 пока не реализован — используйте Target Exchange.'
+        exit 1
+    }
+}
+
+exit 0