Update Dockerfile

Dockerfile

@@ -25,6 +25,10 @@ RUN pip install --no-cache-dir --upgrade -r /code/requirements.txt
 
 ENV FASTF1_CACHE_DIR="/code/cache"
 
+# Add the following lines to create the main.db file
+RUN touch /code/cache/main.db
+RUN chmod a+w /code/cache/main.db
+
 COPY . .
 
 CMD ["uvicorn", "main:app", "--host", "0.0.0.0", "--port", "7860"]