Update Dockerfile

Dockerfile

@@ -1,8 +1,8 @@
-FROM python:3.12
+FROM python:3.12-slim
 
 WORKDIR /code
 
-COPY ./requirements.txt /code/requirements.txt
+COPY requirements.txt /code/requirements.txt
 
 RUN pip install --no-cache-dir --upgrade -r /code/requirements.txt
 
@@ -10,4 +10,5 @@ COPY . .
 
 EXPOSE 7860
 
-CMD ["shiny", "run", "app.py", "--host", "0.0.0.0", "--port", "7860"]
+# app.py must define: app = FastAPI(...)
+CMD ["uvicorn", "app:app", "--host", "0.0.0.0", "--port", "7860"]