Update Dockerfile

Dockerfile

@@ -7,6 +7,9 @@ WORKDIR /app
 # Copy the current directory contents into the container at /app
 COPY . /app
 
+# Create a writable directory for flagged inputs and give it proper permissions
+RUN mkdir -p /app/flagged && chmod -R 777 /app/flagged
+
 # Install any needed dependencies specified in requirements.txt
 RUN pip install --no-cache-dir -r requirements.txt