for deploy

Dockerfile

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+FROM python:3.11-slim
+
+# System deps
+RUN apt-get update && apt-get install -y --no-install-recommends \
+    gcc libpq-dev curl \
+    && rm -rf /var/lib/apt/lists/*
+
+WORKDIR /app
+
+# Install Python deps first (layer cache)
+COPY requirements.txt .
+RUN pip install --no-cache-dir -r requirements.txt
+
+# App source
+COPY . .
+
+# Make entrypoint executable
+RUN chmod +x entrypoint.sh
+
+# Non-root user for security
+RUN useradd -m appuser && chown -R appuser /app
+USER appuser
+
+EXPOSE 8000
+
+# Runs: alembic upgrade head → uvicorn
+ENTRYPOINT ["./entrypoint.sh"]