Create Dockerfile

Dockerfile

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+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 .
+RUN pip install --no-cache-dir -r requirements.txt
+
+# 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"]