火箭能量不清空

rc-service/rc-service-other/other-domain/src/main/java/com/red/circle/other/domain/rocket/RocketStatus.java

@@ -148,10 +148,13 @@ public class RocketStatus {
                 overflowEnergy = 0L;
             }
 
+            // 保留当前能量值，不清空
+            long preservedEnergy = this.currentEnergy;
+
             // 升级到下一级
             this.level = nextLevel;
             this.maxEnergy = nextConfig.getMaxEnergy();
-            this.currentEnergy = overflowEnergy; // 保留溢出能量
+            this.currentEnergy = preservedEnergy; // 完全保留当前能量
             this.status = RocketStatusEnum.CHARGING;
 
             // 清空贡献者（新一轮）