Kinetik v2.0.1: security fixes and update check

• Security: elevated startup now runs a protected copy. With Run at startup on as administrator, Kinetik starts elevated at sign-in without a UAC prompt. Until now that ran the exe from wherever you'd put it, usually a folder any program on your account can write to. Malware already running as you could have replaced it, or dropped a DLL next to it, to get admin rights at your next sign-in.
  • Elevated startup now installs a copy to C:\Program Files\Kinetik, which only administrators can change, and runs that. Without admin rights, startup falls back to a normal, unelevated start.
  • Existing elevated startup entries are moved over automatically the next time Kinetik runs as administrator. Run Kinetik once as administrator after updating (right-click → Restart as administrator).
  • When you run a newer Kinetik as administrator, the installed copy is updated to match. Turning Run at startup off removes it.
• Security: DLLs and helper programs only load from Windows' System32 folder. Kinetik no longer looks for nvml.dll (NVIDIA stats), Windows' own DLLs or Task Manager by name alone, which would have searched its own folder first. nvml.dll is loaded from System32, or from NVIDIA's admin-only install folder on older drivers.
• Security: startup tasks are registered directly through the Task Scheduler API. No more schtasks.exe or temporary task file that another program could swap before Windows read it.
• Hardening: no error log is written while running as administrator, and the desktop shortcut's icon file is never written through a redirected folder or an existing file.
• The exe's product version now shows the right number in its file properties (v2.0.0 still said 1.4.1).
• New: check for updates. Settings → About → Check for updates asks GitHub for the latest version. If there's a newer one, the button opens its release page in your browser. Nothing is downloaded or run automatically.
• Hardening: settings read from the registry are kept within safe limits, so a bad or tampered value can't crash Kinetik or make it draw an enormous window.
• Fix: long descriptions in Settings no longer run underneath the button or switch beside them.