fix(awooop): use shared redis for approval gates

apps/api/src/plugins/mcp/gateway.py

@@ -44,7 +44,7 @@ from typing import Any
 from uuid import UUID
 
 import structlog
-from sqlalchemy import select, text
+from sqlalchemy import select
 from sqlalchemy.ext.asyncio import AsyncSession
 
 from src.db.awooop_models import (
@@ -54,6 +54,7 @@ from src.db.awooop_models import (
     AwoooPMcpToolRegistry,
     AwoooPProject,
 )
+from src.core.redis_client import get_redis
 from src.plugins.mcp.interfaces import MCPToolResult
 from src.plugins.mcp.registry import get_provider_registry
 
@@ -359,14 +360,9 @@ class McpGateway:
             raise GateApprovalError("write/admin 操作需要 run_id（approval 追蹤用）")
 
         try:
-            import aioredis
-
-            from src.core.config import settings
-
-            redis = aioredis.from_url(settings.REDIS_URL)
+            redis = get_redis()
             approval_key = f"mcp_approval:{ctx.project_id}:{ctx.agent_id}:{ctx.tool_name}:{ctx.run_id}"
             approved = await redis.get(approval_key)
-            await redis.aclose()
         except Exception as exc:
             logger.warning(
                 "mcp_gate5_redis_error",