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Dockerfile

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+# Stage 1: Build frontend
+FROM node:20-bookworm AS frontend-build
+WORKDIR /frontend
+COPY frontend/package.json frontend/package-lock.json ./
+RUN npm ci
+COPY frontend/ ./
+RUN npm run build
+
+# Stage 2: Python runtime
+FROM python:3.12-slim
+WORKDIR /backend
+
+COPY requirements.txt .
+RUN pip install --no-cache-dir -r requirements.txt
+
+COPY app/ ./app/
+COPY run.py .
+
+# Copy frontend build output
+COPY --from=frontend-build /frontend/dist ./frontend/dist
+
+EXPOSE 18000
+
+CMD ["uvicorn", "app.main:app", "--host", "0.0.0.0", "--port", "18000"]