fix(ai-toolbar): align fallback shortcut and identity guards

src/components/ai-toolbar.tsx

@@ -222,6 +222,7 @@ export const AIToolbar = ({
 			const isV = e.key === "v" || e.key === "V";
 			const isModifier = e.ctrlKey || e.metaKey;
 			if (!isV || !isModifier || e.shiftKey || e.altKey) return;
+			if (e.ctrlKey && e.metaKey) return;
 			if (isEditableTarget(e.target)) return;
 
 			pasteHandledByEvent = false;