Update battle_arena.py

battle_arena.py

@@ -10,8 +10,12 @@ from typing import Dict, List, Tuple, Optional
 
 
 async def init_battle_arena_db(db_path: str):
-    """배틀 아레나 테이블 초기화"""
-    async with aiosqlite.connect(db_path) as db:
+    """배틀 아레나 테이블 초기화 (DB 락 방지)"""
+    async with aiosqlite.connect(db_path, timeout=30.0) as db:
+        # 🔧 WAL 모드 활성화 (동시 접근 최적화)
+        await db.execute("PRAGMA journal_mode=WAL")
+        await db.execute("PRAGMA busy_timeout=30000")  # 30초 대기
+        
         # 배틀 방 테이블
         await db.execute("""
             CREATE TABLE IF NOT EXISTS battle_rooms (
@@ -90,7 +94,9 @@ async def create_battle_room(
     if is_npc and battle_type != 'opinion':
         return False, "❌ NPC는 다수결 주제만 가능", None
     
-    async with aiosqlite.connect(db_path) as db:
+    async with aiosqlite.connect(db_path, timeout=30.0) as db:
+        await db.execute("PRAGMA busy_timeout=30000")
+        
         # GPU 차감
         if is_npc:
             cursor = await db.execute(
@@ -165,7 +171,8 @@ async def place_bet(
     if bet_amount < 1 or bet_amount > 100:
         return False, "❌ 베팅 1~100 GPU"
     
-    async with aiosqlite.connect(db_path) as db:
+    async with aiosqlite.connect(db_path, timeout=30.0) as db:
+        await db.execute("PRAGMA busy_timeout=30000")
         db.row_factory = aiosqlite.Row
         
         # 방 확인
@@ -249,7 +256,8 @@ async def place_bet(
 
 async def resolve_battle(db_path: str, room_id: int) -> Tuple[bool, str]:
     """배틀 판정 (50.01% 이상 득표한 쪽 승리)"""
-    async with aiosqlite.connect(db_path) as db:
+    async with aiosqlite.connect(db_path, timeout=30.0) as db:
+        await db.execute("PRAGMA busy_timeout=30000")
         db.row_factory = aiosqlite.Row
         
         cursor = await db.execute(
@@ -366,7 +374,8 @@ async def resolve_battle(db_path: str, room_id: int) -> Tuple[bool, str]:
 
 async def get_active_battles(db_path: str, limit: int = 20) -> List[Dict]:
     """진행 중인 배틀 목록"""
-    async with aiosqlite.connect(db_path) as db:
+    async with aiosqlite.connect(db_path, timeout=30.0) as db:
+        await db.execute("PRAGMA busy_timeout=30000")
         db.row_factory = aiosqlite.Row
         
         cursor = await db.execute(
@@ -419,7 +428,9 @@ async def get_active_battles(db_path: str, limit: int = 20) -> List[Dict]:
 
 async def auto_resolve_expired_battles(db_path: str):
     """만료된 배틀 자동 판정"""
-    async with aiosqlite.connect(db_path) as db:
+    async with aiosqlite.connect(db_path, timeout=30.0) as db:
+        await db.execute("PRAGMA busy_timeout=30000")
+        
         cursor = await db.execute(
             """SELECT id FROM battle_rooms 
                WHERE status='active' AND end_time <= ?""",
@@ -516,7 +527,9 @@ async def npc_create_battle(db_path: str) -> Tuple[bool, str]:
     num_battles = random.randint(1, 2)  # 1-2개 랜덤 생성
     
     # 🔒 현재 활성화된 배틀방 제목 조회 (중복 방지)
-    async with aiosqlite.connect(db_path) as db:
+    async with aiosqlite.connect(db_path, timeout=30.0) as db:
+        await db.execute("PRAGMA busy_timeout=30000")
+        
         cursor = await db.execute("""
             SELECT title FROM battle_rooms 
             WHERE status='active'
@@ -524,7 +537,9 @@ async def npc_create_battle(db_path: str) -> Tuple[bool, str]:
         active_titles = {row[0] for row in await cursor.fetchall()}
     
     for _ in range(num_battles):
-        async with aiosqlite.connect(db_path) as db:
+        async with aiosqlite.connect(db_path, timeout=30.0) as db:
+            await db.execute("PRAGMA busy_timeout=30000")
+            
             # 활성 NPC 중 GPU 50 이상인 NPC 선택
             cursor = await db.execute("""
                 SELECT agent_id, ai_identity, gpu_dollars 
@@ -602,7 +617,9 @@ async def npc_auto_bet(db_path: str) -> int:
     """
     total_bet_count = 0
     
-    async with aiosqlite.connect(db_path) as db:
+    async with aiosqlite.connect(db_path, timeout=30.0) as db:
+        await db.execute("PRAGMA busy_timeout=30000")
+        
         # 진행중인 배틀 가져오기
         cursor = await db.execute("""
             SELECT id, title, option_a, option_b, battle_type