Guard all keyboard shortcut handlers in event.c that dereference
wwin->frame->core for stacking operations (WKBD_KEEP_ON_TOP,
WKBD_KEEP_AT_BOTTOM, WKBD_RAISE, WKBD_LOWER, WKBD_RAISELOWER,
WKBD_WINDOWMENU, WKBD_XKB_TOGGLE) so they skip cleanly when a
Wayland window is focused.
Add early-return guards to wKeyboardMoveResizeWindow,
wMouseMoveWindow, and wMouseResizeWindow in moveres.c so that
Wayland windows (frame==NULL) do not crash if those entry points
are reached.
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
b1cc22ed54