Update Dockerfile

Dockerfile

@@ -1,27 +1,9 @@
-FROM node:20-slim AS frontend-builder
-
-WORKDIR /app/frontend
-COPY frontend/package.json frontend/package-lock.json* ./
-RUN npm install
-COPY frontend/ ./
-RUN npm run build
-
-# ---- Backend ----
 FROM python:3.11-slim
 
 WORKDIR /app
-
-# 安装Python依赖
-COPY backend/requirements.txt .
+COPY requirements.txt .
 RUN pip install --no-cache-dir -r requirements.txt
+COPY app.py .
 
-# 复制后端代码
-COPY backend/ .
-
-# 复制前端构建产物
-COPY --from=frontend-builder /app/frontend/dist /app/frontend/dist
-
-# HF Spaces 使用 7860 端口
 EXPOSE 7860
-
 CMD ["uvicorn", "app:app", "--host", "0.0.0.0", "--port", "7860"]