first commit

Dockerfile

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+FROM python:3.12-slim
+
+ENV PYTHONDONTWRITEBYTECODE=1 \
+    PYTHONUNBUFFERED=1 \
+    PIP_NO_CACHE_DIR=1
+
+WORKDIR /app
+
+# Install system deps for web3 / signing libs
+RUN apt-get update \
+    && apt-get install -y --no-install-recommends gcc build-essential \
+    && rm -rf /var/lib/apt/lists/*
+
+COPY pyproject.toml README.md ./
+COPY arbitrage ./arbitrage
+
+RUN pip install --upgrade pip \
+    && pip install -e .
+
+# Paper mode by default; no secrets required
+ENV ARB_MODE=paper \
+    ARB_DB_PATH=/data/arbitrage.db \
+    ARB_WEB_HOST=0.0.0.0 \
+    ARB_WEB_PORT=8000
+
+VOLUME ["/data"]
+EXPOSE 8000
+
+# Entrypoint chooses init→discover→scan→web via docker-compose services.
+ENTRYPOINT ["arb"]
+CMD ["web"]