feat: add {gift_count} variable to gift/blind box default rules

- New variable {gift_count} (gift quantity) alongside existing {gift_num}
- Default templates: 感谢由{viewer_name}投喂的{gift_count}个{gift_name}
- danmaku_handler passes gift_count=message.num
- README variable table and examples updated
- Rebuild portable zip (83.9 MB)

danmaku_handler.py

@@ -84,12 +84,14 @@ class DanmakuHandler(blivedm.BaseHandler):
                               viewer_name=message.uname,
                               gift_name=message.gift_name,
                               gift_num=message.num,
+                              gift_count=message.num,
                               blind_box_gift=blind_box_gift)
         else:
             text = event_text(self._rules, "gift",
                               viewer_name=message.uname,
                               gift_name=message.gift_name,
                               gift_num=message.num,
+                              gift_count=message.num,
                               gift_price=message.price,
                               gift_coin_type=message.coin_type)
         logger.info("Gift: %s x%d from %s (blind=%s)",