Hold block added

src/states/MenuState.cpp

@@ -1134,7 +1134,7 @@ void MenuState::render(SDL_Renderer* renderer, float logicalScale, SDL_Rect logi
             // Shortcut entries (copied from HelpOverlay)
             struct ShortcutEntry { const char* combo; const char* description; };
             const ShortcutEntry generalShortcuts[] = {
-                {"H", "Toggle this help overlay"},
+                {"F1", "Toggle this help overlay"},
                 {"ESC", "Back / cancel current popup"},
                 {"F11 or ALT+ENTER", "Toggle fullscreen"},
                 {"M", "Mute or unmute music"},
@@ -1149,6 +1149,7 @@ void MenuState::render(SDL_Renderer* renderer, float logicalScale, SDL_Rect logi
                 {"DOWN", "Soft drop (faster fall)"},
                 {"SPACE", "Hard drop / instant lock"},
                 {"UP", "Rotate clockwise"},
+                {"H", "Hold / swap current piece"},
                 {"X", "Toggle rotation direction used by UP"},
                 {"P", "Pause or resume"},
                 {"ESC", "Open exit confirmation"}

src/states/PlayingState.cpp

@@ -118,6 +118,12 @@ void PlayingState::handleEvent(const SDL_Event& e) {
 
         // Tetris controls (only when not paused)
         if (!ctx.game->isPaused()) {
+            // Hold / swap current piece (H)
+            if (e.key.scancode == SDL_SCANCODE_H) {
+                ctx.game->holdCurrent();
+                return;
+            }
+
             // Rotation (still event-based for precise timing)
             if (e.key.scancode == SDL_SCANCODE_UP) {
                 // Use user setting to determine whether UP rotates clockwise