fix: add reset() alias to ScrollHelper for plugin compatibility (#290)

Multiple plugins (F1, UFC) independently called scroll_helper.reset()
instead of scroll_helper.reset_scroll(), causing AttributeError and
preventing scroll modes from displaying. Adding reset() as an alias
prevents this class of bugs going forward.

Co-authored-by: Chuck <chuck@example.com>
Co-authored-by: Claude Opus 4.6 <noreply@anthropic.com>

src/common/scroll_helper.py

@@ -648,6 +648,10 @@ class ScrollHelper:
         self.last_update_time = now
         self.logger.debug("Scroll position reset")
 
+    def reset(self) -> None:
+        """Alias for reset_scroll() for convenience."""
+        self.reset_scroll()
+
     def set_scrolling_image(self, image: Image.Image) -> None:
         """
         Set a pre-rendered scrolling image and initialize all required state.