fix: audit hardening 2.1.10-SAC — gitignore, SAC TLS warn, Exchange safety

- Extend .gitignore for local settings, logs, spool, backups
- Log CRITICAL when SacTlsSkipVerify is enabled (Login_Monitor + Sac-Client)
- Exchange-MailSecurity: -WhatIf dry-run, scan safety warnings, v1.6.8
- Remove legacy Watchdog_RDP_Monitor.ps1 and Install-ScheduledTasks.ps1
- Add scripts for GitHub sanitize mirror push workflow

README_eng.md

@@ -92,7 +92,7 @@ For domain deployment from a share you do not configure the scheduler on clients
 
 - **`-SkipScheduledTaskMaintenance`**: during normal monitor startup, skip verification/recreation of scheduled tasks (if you manage tasks only via **`-InstallTasks`** or manually).
 - **`Install-DeployScheduledTask.ps1`** — helper to run **`Deploy-LoginMonitor.ps1`** from a share on a schedule (see **[DEPLOY.md](DEPLOY.md)**).
-- **`Watchdog_RDP_Monitor.ps1`** and **`Install-ScheduledTasks.ps1`** — **alternate** layout with a separate watchdog script and default paths under **`D:\Soft`**. For new installs, prefer the built-in **`-Watchdog`** in **`Login_Monitor.ps1`** and tasks **`RDP-Login-Monitor`** / **`RDP-Login-Monitor-Watchdog`**.
+- Watchdog is built into **`Login_Monitor.ps1`** (`-Watchdog`); scheduled tasks **`RDP-Login-Monitor`** / **`RDP-Login-Monitor-Watchdog`** are registered by **`-InstallTasks`**.
 - **`ignore.lst.example`** in the repo is a template for **`ignore.lst`** to suppress selected Security notifications (see section 7).
 - **`login_monitor.settings.example.ps1`** — template for **`login_monitor.settings.ps1`** (Telegram, SMTP, 4740, local IP exclusions). Deploy may create `login_monitor.settings.ps1` from the example on first install.