refactor: integrate reverse request handlers for NSFW

app/services/grok/services/nsfw.py

@@ -10,7 +10,6 @@ from typing import Optional
 from curl_cffi.requests import AsyncSession
 
 from app.core.logger import logger
-from app.services.grok.protocols.grpc_web import (
 from app.core.config import get_config
 from app.core.exceptions import UpstreamException
 from app.services.reverse import NsfwMgmtReverse, SetBirthReverse