feat: initialize database with demo data on first run and update README

backend/Dockerfile

@@ -8,15 +8,26 @@ ENV PYTHONDONTWRITEBYTECODE=1 \
 WORKDIR /app
 
 RUN apt-get update \
-    && apt-get install -y --no-install-recommends build-essential libpq-dev \
+    && apt-get install -y --no-install-recommends build-essential libpq-dev postgresql-client \
     && rm -rf /var/lib/apt/lists/*
 
 COPY backend/requirements/base.txt ./backend/requirements/base.txt
 RUN pip install --upgrade pip \
     && pip install -r backend/requirements/base.txt
 
+COPY scripts ./scripts
+COPY .env.example ./.env.example
+COPY .env* ./
+
 COPY backend ./backend
 
 EXPOSE 8000
 
-CMD ["uvicorn", "backend.app.main:app", "--host", "0.0.0.0", "--port", "8000"]
+# Initialize database with demo data if INIT_DEMO_DB is set
+CMD ["sh", "-c", "\
+    export PYTHONPATH=/app && \
+    echo 'Waiting for database...' && \
+    while ! pg_isready -h db -p 5432 -U railgame >/dev/null 2>&1; do sleep 1; done && \
+    echo 'Database is ready!' && \
+    if [ \"$INIT_DEMO_DB\" = \"true\" ]; then python scripts/init_demo_db.py; fi && \
+    uvicorn backend.app.main:app --host 0.0.0.0 --port 8000"]