android-native: auto hunt, in-client account registration, mobile UI polish

- Auto hunt (client-only): PythonPlayerAutoHunt.cpp + AutoHuntScript.inc as the
  embedded mt_autohunt module, AUTO touch button, F9/F8.
- Account registration: tools/40250/register_server.py (rc.d mt_register, :11080)
  inserts into account.account; net.RegisterAccount/GetRegisterAccountResult
  (PythonAccountRegister.cpp) and the mt_register login-window dialog
  (RegisterScript.inc).
- --py-exec also runs in --login-screen mode for scripted login-screen tests.
- Touch controller, window manager and render command updates for the
  Android native client.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

extension/src/port/EterPythonLib/PythonWindow.h

@@ -12,6 +12,10 @@ namespace UI
 			static DWORD Type();
 			BOOL IsType(DWORD dwType);
 
+			// PORT: touch hosts type with the system keyboard, so windows named "VirtualKeyboard"
+			// (intrologin.py's on-screen keypad) never show.
+			static void SetHideVirtualKeyboard(bool bHide);
+
 			enum EHorizontalAlign
 			{
 				HORIZONTAL_ALIGN_LEFT = 0,