FROM debian:bookworm-slim
ENV TZ=Asia/Shanghai

# Install minimal runtime dependencies
RUN apt-get update && apt-get install -y --no-install-recommends \
    ca-certificates \
    libssl3 \
    curl \
    && rm -rf /var/lib/apt/lists/*

WORKDIR /app

# The build context is expected to be prepared by the deployment script
# It should contain:
# - app (the binary)
# - config/ (if needed)
# - assets/ (if needed)

COPY . .

# Ensure the binary is executable
RUN chmod +x /app/app

ENTRYPOINT ["/app/app"]