新增请求/响应日志中间件，支持详细的请求和响应信息记录

src/main.py

@@ -20,6 +20,7 @@ from api.routers import models, chat, embeddings
 from api.schemas import ErrorResponse, ErrorDetail
 from api.error_handler import OCIErrorHandler
 from api.exceptions import ModelNotFoundException, InvalidModelTypeException
+from api.middleware import setup_logging_middleware
 
 
 # Configure logging
@@ -133,6 +134,9 @@ app.add_middleware(
     allow_headers=["*"],
 )
 
+# Add logging middleware (for request/response debugging)
+setup_logging_middleware(app)
+
 
 # Exception handlers
 @app.exception_handler(ModelNotFoundException)