fix: 合并 get_db 和 get_current_user 的导入到 deps

backend/app/api/v1/endpoints/certificate.py

@@ -14,8 +14,7 @@ from fastapi.responses import StreamingResponse
 from sqlalchemy.ext.asyncio import AsyncSession
 import io
 
-from app.core.deps import get_db
-from app.core.security import get_current_user
+from app.core.deps import get_db, get_current_user
 from app.models.user import User
 from app.services.certificate_service import CertificateService
 

backend/app/api/v1/endpoints/dashboard.py

@@ -8,8 +8,7 @@ from typing import Optional
 from fastapi import APIRouter, Depends, HTTPException, status, Query
 from sqlalchemy.ext.asyncio import AsyncSession
 
-from app.core.deps import get_db
-from app.core.security import get_current_user
+from app.core.deps import get_db, get_current_user
 from app.models.user import User
 from app.services.dashboard_service import DashboardService