feat: 人员库弹框显示人员图片

web/app.py

@@ -195,6 +195,25 @@ async def rename_person(person_id: str, name: str):
     raise HTTPException(status_code=404, detail="人员不存在")
 
 
+@app.get("/api/persons/{person_id}/face")
+async def get_person_face(person_id: str):
+    """获取人员人脸图片"""
+    from person_manager import person_manager
+    from pathlib import Path
+    
+    if person_id in person_manager.persons:
+        face_path = person_manager.persons[person_id].get('face_path', '')
+        if face_path and Path(face_path).exists():
+            return FileResponse(face_path)
+        
+        # 检查 faces_dir 中的默认图片
+        face_file = person_manager.faces_dir / f"{person_id}.jpg"
+        if face_file.exists():
+            return FileResponse(str(face_file))
+    
+    raise HTTPException(status_code=404, detail="人员图片不存在")
+
+
 @app.get("/api/stats/daily")
 async def get_daily_stats(date: str = None):
     """获取每日统计数据"""