优化: 库存耗尽继续重试 + 默认并发数改为150

- 库存耗尽后不再停止，继续重试（斗鱼可能补货）
- 默认并发数从 80 提升到 150，提高抢购速度

internal/constants/constants.go

@@ -23,7 +23,7 @@ const (
 	ScoreURL           = BaseURL + "/japi/oms/web/peace/credit/balance"
 	UserAgent          = "Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/149.0.0.0 Safari/537.36"
 	DefaultAttempts    = 1
-	DefaultConcurrency = 80
+	DefaultConcurrency = 150
 	ProductCacheTTL    = 30 * time.Second
 
 	DefaultConfigFile  = "config.json"

internal/seckill/scheduler.go

@@ -444,7 +444,8 @@ func jitterDuration(base time.Duration) time.Duration {
 func classifyRetryStop(message string) (account bool, product bool, success bool, reason string) {
 	switch {
 	case strings.Contains(message, "商品本次活动库存已耗完"):
-		return true, true, false, "商品库存已耗完"
+		// 库存耗尽不停止，继续重试（斗鱼可能会补货）
+		return false, false, false, ""
 	case strings.Contains(message, "您已达本次活动兑换上限"):
 		return true, false, true, "已抢到（兑换上限）"
 	case strings.Contains(message, "未绑定账号"):