修改路径，从src放到根目录

api/dependencies.py

@@ -0,0 +1,67 @@
+"""
+FastAPI依赖注入模块
+"""
+
+from typing import Generator, Optional
+from fastapi import Depends, HTTPException, status
+from sqlalchemy.orm import Session
+
+from database.connection import db_manager, get_db
+from repositories.face_feature_repository import FaceFeatureRepository
+from services.face_feature_service import FaceFeatureService
+
+
+def get_face_feature_repository(
+        db: Session = Depends(get_db)
+) -> FaceFeatureRepository:
+    """
+    获取人脸特征仓库依赖
+
+    Args:
+        db: 数据库会话
+
+    Returns:
+        FaceFeatureRepository实例
+    """
+    return FaceFeatureRepository(db)
+
+
+def get_face_feature_service(
+        repository: FaceFeatureRepository = Depends(get_face_feature_repository)
+) -> FaceFeatureService:
+    """
+    获取人脸特征服务依赖
+
+    Args:
+        repository: 人脸特征仓库
+
+    Returns:
+        FaceFeatureService实例
+    """
+    return FaceFeatureService(repository)
+
+
+def get_face_feature_by_id(
+        feature_id: int,
+        service: FaceFeatureService = Depends(get_face_feature_service)
+):
+    """
+    根据ID获取人脸特征记录的依赖
+
+    Args:
+        feature_id: 特征记录ID
+        service: 人脸特征服务
+
+    Returns:
+        人脸特征记录
+
+    Raises:
+        HTTPException: 如果记录不存在
+    """
+    feature = service.get_feature(feature_id)
+    if not feature:
+        raise HTTPException(
+            status_code=status.HTTP_404_NOT_FOUND,
+            detail=f"特征记录不存在 (ID: {feature_id})"
+        )
+    return feature