HUD: hover and tooltips for moved windows

Windows poll the mouse cursor object (0xcdbadc, x +4) for hover; it is
shifted inside a moved window's render/event scope like the events.
Tooltips are separate windows placed by the hovered window in its 1024
layout, so cUI_Tooltip renders with the offset of the moved window under
the cursor. Adds Move-To to the test input helpers.

Co-Authored-By: Claude Opus 5.5 (1M context) <noreply@anthropic.com>

src/game/addresses.h

@@ -26,6 +26,7 @@ constexpr uint32_t WorldToScreen = 0x00623c40;
 // --- globals -----------------------------------------------------------------
 constexpr uint32_t g_dxDriver = 0x00cda99c;  // DxDriver7*
 constexpr uint32_t g_appFlags = 0x0182cdb8;  // uint32_t, 0x20000 = inactive
+constexpr uint32_t g_mouseCursor = 0x00cdbadc;  // mouse cursor object*: x +4, y +8 (render pixels)
 
 // --- read-only constants -----------------------------------------------------
 constexpr uint32_t kScreenWidthF = 0x0088e6f4;  // float 1024.0