Merge branch 'main' of https://git.eliah.one/mytec/rfcp

frontend/src/hooks/useKeyboardShortcuts.ts

@@ -40,15 +40,21 @@ export function useKeyboardShortcuts({
         return;
       }
 
+      // Undo/Redo: use e.code (layout-independent) as primary, e.key as fallback.
+      // e.key can be uppercase 'Z' with Shift, or a control char on some layouts.
+      // e.code is always 'KeyZ' / 'KeyY' regardless of modifier or layout.
+      const isZ = e.code === 'KeyZ' || e.key.toLowerCase() === 'z';
+      const isY = e.code === 'KeyY' || e.key.toLowerCase() === 'y';
+
       // Undo: Ctrl+Z (or Cmd+Z on Mac)
-      if (modKey && e.key === 'z' && !e.shiftKey) {
+      if (modKey && isZ && !e.shiftKey) {
         e.preventDefault();
         onUndo?.();
         return;
       }
 
       // Redo: Ctrl+Shift+Z or Ctrl+Y (Cmd+Shift+Z or Cmd+Y on Mac)
-      if (modKey && ((e.key === 'z' && e.shiftKey) || e.key === 'y')) {
+      if (modKey && ((isZ && e.shiftKey) || isY)) {
         e.preventDefault();
         onRedo?.();
         return;