fix(data-ana): ruff 自动修复代码风格

services/data-ana/src/data_ana/clickhouse_client.py

@@ -1,5 +1,7 @@
 """ClickHouse 客户端."""
+
 import clickhouse_connect
+
 from .config import settings
 
 _client = None

services/data-ana/src/data_ana/main.py

@@ -1,12 +1,14 @@
 """数据分析服务入口."""
+
 from contextlib import asynccontextmanager
+
+import structlog
 from fastapi import FastAPI
 from opentelemetry import trace
+from opentelemetry.exporter.otlp.proto.http.trace_exporter import OTLPSpanExporter
 from opentelemetry.sdk.trace import TracerProvider
 from opentelemetry.sdk.trace.export import BatchSpanProcessor
-from opentelemetry.exporter.otlp.proto.http.trace_exporter import OTLPSpanExporter
 from prometheus_client import make_asgi_app
-import structlog
 
 logger = structlog.get_logger()
 tracer = trace.get_tracer(__name__)

services/data-ana/src/health/health.py

@@ -8,7 +8,8 @@
     from health import router as health_router
     app.include_router(health_router)
 """
-from datetime import datetime, timezone
+
+from datetime import UTC, datetime
 
 from fastapi import APIRouter
 
@@ -30,5 +31,5 @@ async def readyz() -> dict:
     return {
         "status": "ok",
         "service": SERVICE_NAME,
-        "timestamp": datetime.now(timezone.utc).isoformat(),
+        "timestamp": datetime.now(UTC).isoformat(),
     }