feat(ws): implement WebSocket cluster mode with Redis Pub/Sub

Introduce a new WebSocket messaging architecture that supports both standalone and cluster modes. This allows for horizontal scaling of WebSocket servers by using Redis Pub/Sub to synchronize messages across multiple instances.

Key changes:
- Added `ws.MessagePublisher` interface to abstract message distribution.
- Implemented `ws.Bus` to handle cluster-mode messaging via Redis.
- Added `ws.OnlineTracker` to manage user online status across the cluster.
- Refactored multiple services (Chat, Group, Push, Call, etc.) to use the new `MessagePublisher` instead of a concrete `ws.Hub`.
- Added WebSocket configuration options (mode, instance ID, channel, TTL, heartbeat) to `config.yaml` and `config.go`.
- Updated dependency injection with Wire to support the new publisher and Redis client.
- Improved logging by replacing standard `log` with `zap` in several service components.

internal/wire/service.go

@@ -105,10 +105,10 @@ func ProvidePushService(
 	pushRepo repository.PushRecordRepository,
 	deviceTokenRepo repository.DeviceTokenRepository,
 	messageRepo repository.MessageRepository,
-	wsHub *ws.Hub,
+	publisher ws.MessagePublisher,
 	jpushClient *jpush.Client,
 ) service.PushService {
-	return service.NewPushService(pushRepo, deviceTokenRepo, messageRepo, wsHub, jpushClient)
+	return service.NewPushService(pushRepo, deviceTokenRepo, messageRepo, publisher, jpushClient)
 }
 
 // ProvideSystemMessageService 提供系统消息服务
@@ -205,12 +205,12 @@ func ProvideChannelService(channelRepo repository.ChannelRepository, cacheBacken
 func ProvideChatService(
 	messageRepo repository.MessageRepository,
 	userRepo repository.UserRepository,
-	wsHub *ws.Hub,
+	publisher ws.MessagePublisher,
 	cacheBackend cache.Cache,
 	uploadService *service.UploadService,
 	pushService service.PushService,
 ) service.ChatService {
-	return service.NewChatService(messageRepo, userRepo, nil, wsHub, cacheBackend, uploadService, pushService)
+	return service.NewChatService(messageRepo, userRepo, nil, publisher, cacheBackend, uploadService, pushService)
 }
 
 // ProvideScheduleService 提供日程服务
@@ -236,10 +236,10 @@ func ProvideGroupService(
 	messageRepo repository.MessageRepository,
 	requestRepo repository.GroupJoinRequestRepository,
 	notifyRepo repository.SystemNotificationRepository,
-	wsHub *ws.Hub,
+	publisher ws.MessagePublisher,
 	cacheBackend cache.Cache,
 ) service.GroupService {
-	return service.NewGroupService(groupRepo, userRepo, messageRepo, requestRepo, notifyRepo, wsHub, cacheBackend)
+	return service.NewGroupService(groupRepo, userRepo, messageRepo, requestRepo, notifyRepo, publisher, cacheBackend)
 }
 
 // ProvideUploadService 提供上传服务
@@ -382,13 +382,13 @@ func ProvideHotRankWorker(cfg *config.Config, postRepo repository.PostRepository
 
 func ProvideQRCodeLoginService(
 	redisClient *redis.Client,
-	wsHub *ws.Hub,
+	publisher ws.MessagePublisher,
 	jwtService *service.JWTService,
 	userService service.UserService,
 	activityService service.UserActivityService,
 	logService *service.LogService,
 ) *service.QRCodeLoginService {
-	return service.NewQRCodeLoginService(redisClient, wsHub, jwtService, userService, activityService, logService)
+	return service.NewQRCodeLoginService(redisClient, publisher, jwtService, userService, activityService, logService)
 }
 
 // ProvideMaterialService 提供学习资料服务
@@ -407,11 +407,12 @@ func parseDuration(s string) (time.Duration, error) {
 // ProvideCallService 提供通话服务
 func ProvideCallService(
 	callRepo repository.CallRepository,
-	wsHub *ws.Hub,
+	publisher ws.MessagePublisher,
 	cfg *config.Config,
 	db *gorm.DB,
+	redisClient *redis.Client,
 ) service.CallService {
-	return service.NewCallService(callRepo, wsHub, cfg, db)
+	return service.NewCallService(callRepo, publisher, cfg, db, redisClient)
 }
 
 // ProvideReportService 提供举报服务