fix(awooop): use shared redis for approval gates

apps/api/src/services/awooop_approval_token.py

@@ -46,6 +46,8 @@ from typing import Any
 
 import structlog
 
+from src.core.redis_client import get_redis
+
 logger = structlog.get_logger(__name__)
 
 # ─────────────────────────────────────────────────────────────────────────────
@@ -219,29 +221,23 @@ async def record_approval(
     exp = payload["exp"]
 
     try:
-        import aioredis
-        from src.core.config import settings
-
-        redis = aioredis.from_url(settings.REDIS_URL)
+        redis = get_redis()
 
         # jti NX
         jti_key = f"{_JTI_KEY_PREFIX}{jti}"
         ttl_remaining = max(exp - int(time.time()), 1)
         ok = await redis.set(jti_key, "1", nx=True, ex=ttl_remaining)
         if not ok:
-            await redis.aclose()
             raise TokenReplayError(f"jti={jti!r} 已使用")
 
         # SADD approver
         sig_key = f"{_SIG_SET_PREFIX}{project_id}:{run_id}:{tool_name}"
         added = await redis.sadd(sig_key, approver_id)
         if added == 0:
-            await redis.aclose()
             raise DuplicateApproverError(f"approver '{approver_id}' 已簽核")
 
         await redis.expire(sig_key, _SIG_TTL_SECONDS)
         count = int(await redis.scard(sig_key))
-        await redis.aclose()
 
         logger.info(
             "awooop_approval_recorded",
@@ -271,13 +267,9 @@ async def check_approval_quorum(
     檢查 quorum。Raises QuorumNotMetError if 不足。
     """
     try:
-        import aioredis
-        from src.core.config import settings
-
-        redis = aioredis.from_url(settings.REDIS_URL)
+        redis = get_redis()
         sig_key = f"{_SIG_SET_PREFIX}{project_id}:{run_id}:{tool_name}"
         count = int(await redis.scard(sig_key))
-        await redis.aclose()
 
         if count < required_count:
             raise QuorumNotMetError(f"簽核數不足（{count}/{required_count}）")