Ensure /app/runs exists and is writable in container

Dockerfile

@@ -6,13 +6,14 @@ ENV PYTHONUNBUFFERED=1
 WORKDIR /app
 ENV HOME=/app
 RUN apt-get update && apt-get install -y --no-install-recommends git build-essential && rm -rf /var/lib/apt/lists/*
-RUN mkdir -p $HOME/.streamlit && chmod -R 777 $HOME/.streamlit
+RUN mkdir -p $HOME/.streamlit $HOME/runs && chmod -R 777 $HOME/.streamlit $HOME/runs
 ENV STREAMLIT_BROWSER_GATHER_USAGE_STATS=false
 COPY pyproject.toml requirements.txt README.md ./
 COPY searchqual ./searchqual
 RUN pip install --upgrade pip && pip install -r requirements.txt && pip install -e .
 COPY configs ./configs
 COPY examples ./examples
+COPY runs ./runs
 COPY streamlit_app.py ./streamlit_app.py
 ENV SEARCHQUAL_RUNS=/app/runs
 VOLUME ["/app/runs"]