feat(call): integrate LiveKit for voice and video calling

Replace the manual WebRTC signaling implementation with LiveKit SFU. This includes:
- Adding LiveKit service, handler, and configuration.
- Updating Docker Compose to include LiveKit server, Redis, and PostgreSQL.
- Refactoring `CallService` and `WSHandler` to support LiveKit room readiness instead of raw SDP/ICE relaying.
- Adding new API endpoints for LiveKit token generation and webhooks.
- Removing deprecated WebRTC configuration and manual signaling DTOs.

internal/wire/handler.go

@@ -1,12 +1,14 @@
 package wire
 
 import (
+	"with_you/internal/config"
 	"with_you/internal/handler"
 	"with_you/internal/pkg/ws"
 	"with_you/internal/repository"
 	"with_you/internal/service"
 
 	"github.com/google/wire"
+	"go.uber.org/zap"
 )
 
 // HandlerSet Handler 层 Provider Set
@@ -29,6 +31,7 @@ var HandlerSet = wire.NewSet(
 	handler.NewQRCodeHandler,
 	handler.NewMaterialHandler,
 	handler.NewCallHandler,
+	ProvideLiveKitHandler,
 	handler.NewReportHandler,
 	handler.NewAdminReportHandler,
 	handler.NewVerificationHandler,
@@ -106,6 +109,16 @@ func ProvideWSHandler(
 	return handler.NewWSHandler(publisher, chatService, groupService, jwtService, callService, userRepo)
 }
 
+// ProvideLiveKitHandler 提供 LiveKit 处理器
+func ProvideLiveKitHandler(
+	liveKitService service.LiveKitService,
+	callService service.CallService,
+	cfg *config.Config,
+	logger *zap.Logger,
+) *handler.LiveKitHandler {
+	return handler.NewLiveKitHandler(liveKitService, callService, cfg, logger)
+}
+
 // ProvideAdminVerificationHandler 提供管理端身份认证处理器
 func ProvideAdminVerificationHandler(
 	adminVerificationService service.AdminVerificationService,

internal/wire/service.go

@@ -62,6 +62,7 @@ var ServiceSet = wire.NewSet(
 	ProvideHotRankWorker,
 	ProvideMaterialService,
 	ProvideCallService,
+	ProvideLiveKitService,
 	ProvideReportService,
 	ProvideAdminReportService,
 	ProvideVerificationService,
@@ -463,6 +464,14 @@ func ProvideCallService(
 	return service.NewCallService(callRepo, publisher, cfg, db, redisClient)
 }
 
+// ProvideLiveKitService 提供 LiveKit 服务
+func ProvideLiveKitService(
+	cfg *config.Config,
+	logger *zap.Logger,
+) service.LiveKitService {
+	return service.NewLiveKitService(cfg, logger)
+}
+
 // ProvideReportService 提供举报服务
 func ProvideReportService(
 	reportRepo repository.ReportRepository,