add docker things

.dockerignore

+__pycache__
+*.py[cod]
+
+cards.cdb
+
+.git*
+Dockerfile
+.dockerignore

.gitignore

+__pycache__
+*.py[cod]

Dockerfile

+FROM debian:bookworm-slim as cards_cdb_fetcher
+
+RUN apt-get update && apt-get install -y --no-install-recommends \
+    wget \
+    ca-certificates \
+    && rm -rf /var/lib/apt/lists/*
+
+WORKDIR /app
+
+RUN wget -O cards.cdb https://cdn02.moecube.com:444/ygopro-database/zh-CN/cards.cdb
+
+FROM python:3.11-slim-bookworm
+
+WORKDIR /app
+
+COPY requirements.txt ./
+RUN pip install --no-cache-dir -r requirements.txt
+
+COPY . ./
+COPY --from=cards_cdb_fetcher /app/cards.cdb ./cards.cdb
+RUN python card_build.py
+
+ENTRYPOINT ["python"]
+CMD ["guess_card_game.py"]