fix: if entry from the preview to the main stream fails, block the use of the exit live room feature

hrp/pkg/uixt/video_crawler.go

@@ -202,14 +202,15 @@ func (dExt *DriverExt) VideoCrawler(configs *VideoCrawlerConfigs) (err error) {
 
 			switch currentVideo.Type {
 			case VideoType_PreviewLive:
+				isFeed = true
 				// 直播预览流
 				var skipEnterLive bool
 				if crawler.isLiveTargetAchieved() {
 					log.Info().Interface("video", currentVideo).
 						Msg("live count achieved, skip entering live room")
 					skipEnterLive = true
-				} else if rand.Float64() <= 0.50 {
+				} else if rand.Float64() <= 0.70 {
-					// 50% chance skip entering live room
+					// 70% chance skip entering live room
 					log.Info().Msg("skip entering preview live by 50% chance")
 					skipEnterLive = true
 				}
@@ -234,7 +235,6 @@ func (dExt *DriverExt) VideoCrawler(configs *VideoCrawlerConfigs) (err error) {
 					sleepTime := math.Min(float64(currentVideo.SimulationPlayDuration), float64(currentVideo.RandomPlayDuration))
 					currentVideo.PlayDuration = int64(sleepTime)
 				}
-				isFeed = false
 				fallthrough
 
 			case VideoType_Live:
@@ -277,11 +277,12 @@ func (dExt *DriverExt) VideoCrawler(configs *VideoCrawlerConfigs) (err error) {
 					log.Info().Interface("live", currentVideo).
 						Msg("live count achieved, exit live room")
 					exitLive = true
-				} else if rand.Float64() <= 0.40 {
+				} else if rand.Float64() <= 0.50 {
-					// 10% chance exit live room
+					// 50% chance exit live room
 					log.Info().Msg("exit live room by 10% chance")
 					exitLive = true
 				}
+				// isFeed：通过预览流进入内流失败的情况下，防止使用退出直播间逻辑，影响：首次进入内流，至少会消费两个直播间才能退出
 				if (!isFeed) && exitLive && currentVideo.Type == VideoType_Live {
 					err = crawler.exitLiveRoom()
 					if err != nil {