补全过滤入口与直接兑换，优化兑换分类和 WSS 建连

- GUI 接线 Exchange 绑定：新增「直接兑换」按钮，结果带 category/message 并进入结果面板
- 补 -max-price/-min-left（CLI 与 GUI 设置），Target 的价格与库存过滤不再悬空
- 删除死代码 sendUpdateUserInfo 及其请求结构体（浏览器流程不含该帧）
- ClassifyExchange 改为多路判定：合并 msg/actPreCondition/exchangeInfo 文案，status=200 且有 orderId 视为成功，新增 condition 分类（precondition 门禁）
- WSS 建连改为锁外 dial、锁内注册，同 uid 并发调用共享一次握手
- 默认传输层统一为 http（CLI/GUI/README），.gitignore 忽略 .DS_Store
- 同步 Wails 依赖升级（2.12.0 -> 2.15.0）并重新生成前端绑定

cmd/huya-go/main.go

@@ -27,6 +27,8 @@ func main() {
 		pids             = flag.String("pids", "", "多个奖品 PID，逗号分隔")
 		name             = flag.String("name", "", "按奖品名包含匹配")
 		names            = flag.String("names", "", "多个奖品名，逗号分隔")
+		maxPrice         = flag.Int64("max-price", 0, "目标奖品最高积分，0 表示不限制")
+		minLeft          = flag.Int64("min-left", 0, "目标奖品最少剩余库存，0 表示不限制")
 		autoSelect       = flag.Bool("auto", false, "monitor 自动选择列表里的可兑奖品")
 		loops            = flag.Int("loops", 1, "monitor 循环次数")
 		delayMS          = flag.Int("delay", 150, "monitor 每轮间隔毫秒")
@@ -126,7 +128,7 @@ func main() {
 		waitForCommand(ctx, startAt)
 		runExchange(ctx, client, accounts, int32(*sid), int32(*pid), *concurrency)
 	case "monitor":
-		targets := parseTargets(*pid, *pids, *name, *names, *autoSelect)
+		targets := parseTargets(*pid, *pids, *name, *names, *autoSelect, *maxPrice, *minLeft)
 		if len(targets) == 0 {
 			exitErr(errors.New("monitor 必须提供 -pid 或 -name"))
 		}
@@ -237,7 +239,7 @@ func loadCookies(cookie, file string) ([]string, error) {
 	return out, nil
 }
 
-func parseTargets(pid int, pids, name, names string, autoSelect bool) []sniper.Target {
+func parseTargets(pid int, pids, name, names string, autoSelect bool, maxPrice, minLeft int64) []sniper.Target {
 	targets := make([]sniper.Target, 0)
 	name = strings.TrimSpace(name)
 	if pid > 0 || name != "" {
@@ -259,6 +261,11 @@ func parseTargets(pid int, pids, name, names string, autoSelect bool) []sniper.T
 		}
 		targets = append(targets, sniper.Target{Name: text})
 	}
+	// 价格/库存过滤对所有目标统一生效。
+	for i := range targets {
+		targets[i].MaxPrice = maxPrice
+		targets[i].MinLeft = minLeft
+	}
 	return targets
 }