fix(金币消耗): 调整金币消耗顺序，优先消耗任务金币

修改金币消耗逻辑，将任务金币的消耗优先级提高到免费金币之前，以符合业务需求

src/views/consume/gold/addCoinConsume.vue

@@ -234,23 +234,25 @@ function calculateCoins(sumGold) {
   let remaining = parsedSumGold;
   let freeUsed = 0, permanentUsed = 0, taskUsed = 0;
 
-  // 优先消耗免费金币
-  if (nowFreeGold > 0) {
+  // 先消耗任务金币
+  if (remaining > 0 && nowTaskGold > 0) {
+    const availableTaskGold = parseFloat(nowTaskGold.toFixed(4));
+    taskUsed = Math.min(availableTaskGold, remaining);
+    remaining = parseFloat((remaining - taskUsed).toFixed(4));
+  }
+
+  // 再消耗免费金币
+  if (remaining > 0 && nowFreeGold > 0) {
     freeUsed = Math.min(parseFloat(nowFreeGold.toFixed(4)), remaining);
     remaining = parseFloat((remaining - freeUsed).toFixed(4));
   }
 
-  // 其次消耗永久金币
+  // 最后消耗永久金币
   if (remaining > 0 && nowPermanentGold > 0) {
     permanentUsed = Math.min(parseFloat(nowPermanentGold.toFixed(4)), remaining);
     remaining = parseFloat((remaining - permanentUsed).toFixed(4));
   }
 
-  // 最后消耗任务金币
-  if (remaining > 0 && nowTaskGold > 0) {
-    taskUsed = parseFloat(remaining.toFixed(4));
-  }
-
   // 更新金币值
   addConsume.value.freeGold = freeUsed;
   addConsume.value.permanentGold = permanentUsed;