feat: 보스 레이드 방 관리 모듈 추가

MMO 서버/데디케이트 서버 연동을 위한 내부 API 엔드포인트 구현:
- POST /api/internal/bossraid/entry — 파티 입장 요청 (방 생성)
- POST /api/internal/bossraid/start — 세션 시작 보고
- POST /api/internal/bossraid/complete — 클리어 보고 + TOL Chain 보상 지급
- POST /api/internal/bossraid/fail — 실패 보고
- GET /api/internal/bossraid/room — 방 조회

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

main.go

@@ -5,8 +5,11 @@ import (
 
 	"a301_server/internal/announcement"
 	"a301_server/internal/auth"
+	"a301_server/internal/bossraid"
 	"a301_server/internal/chain"
 	"a301_server/internal/download"
+
+	"github.com/tolelom/tolchain/core"
 	"a301_server/pkg/config"
 	"a301_server/pkg/database"
 	"a301_server/routes"
@@ -27,7 +30,7 @@ func main() {
 	log.Println("MySQL 연결 성공")
 
 	// AutoMigrate
-	database.DB.AutoMigrate(&auth.User{}, &announcement.Announcement{}, &download.Info{}, &chain.UserWallet{})
+	database.DB.AutoMigrate(&auth.User{}, &announcement.Announcement{}, &download.Info{}, &chain.UserWallet{}, &bossraid.BossRoom{})
 
 	if err := database.ConnectRedis(); err != nil {
 		log.Fatalf("Redis 연결 실패: %v", err)
@@ -70,6 +73,15 @@ func main() {
 		return err
 	})
 
+	// Boss Raid
+	brRepo := bossraid.NewRepository(database.DB)
+	brSvc := bossraid.NewService(brRepo)
+	brSvc.SetRewardGranter(func(username string, tokenAmount uint64, assets []core.MintAssetPayload) error {
+		_, err := chainSvc.GrantRewardByUsername(username, tokenAmount, assets)
+		return err
+	})
+	brHandler := bossraid.NewHandler(brSvc)
+
 	if config.C.InternalAPIKey == "" {
 		log.Println("WARN: INTERNAL_API_KEY not set — /api/internal/* endpoints are disabled")
 	}
@@ -117,7 +129,7 @@ func main() {
 		},
 	})
 
-	routes.Register(app, authHandler, annHandler, dlHandler, chainHandler, authLimiter, apiLimiter)
+	routes.Register(app, authHandler, annHandler, dlHandler, chainHandler, brHandler, authLimiter, apiLimiter)
 
 	log.Fatal(app.Listen(":" + config.C.AppPort))
 }