feat: remove useless /app/

Dockerfile

@@ -2,10 +2,10 @@ FROM python:3.10
 
 WORKDIR /app
 
-COPY requirements.txt /app/requirements.txt
+COPY requirements.txt requirements.txt
 
 RUN pip install -r requirements.txt
 
-COPY app.py /app/app.py
+COPY app.py app.py
 
-CMD ["python", "/app/app.py"]
+CMD ["python", "app.py"]