add Python server backend

Dockerfile

@@ -1,7 +1,18 @@
-FROM node:18-slim
+FROM node:20-slim AS frontend
 WORKDIR /app
 COPY package*.json ./
 RUN npm ci
 COPY . .
 RUN npm run build
-CMD ["npm", "run", "server"]
+# CMD ["npm", "run", "server"]
+
+FROM python:3.12-slim 
+COPY --from=frontend /app/dist /app/dist
+WORKDIR /app/server-python
+RUN pip install poetry==1.8.2
+COPY server-python/pyproject.toml server-python/poetry.lock ./
+RUN poetry install
+COPY server-python/app.py .
+ENV PRODUCTION="true"
+CMD ["poetry", "run", "fastapi", "run", "app.py", "--port", "3000"]
+