Fix matplotlib config and remove base_url parameter

Dockerfile

@@ -7,6 +7,9 @@ RUN apt-get update && apt-get install -y \
     build-essential \
     && rm -rf /var/lib/apt/lists/*
 
+# Create matplotlib config directory with proper permissions
+ENV MPLCONFIGDIR=/tmp/matplotlib
+
 # Copy only pyproject.toml first to leverage Docker cache
 COPY pyproject.toml .
 
@@ -19,4 +22,5 @@ COPY . .
 # Expose port 7860 for Hugging Face Spaces
 EXPOSE 7860
 
-CMD ["python", "-c", "import cadviewer; from nicegui import app; app.native.start_args['port'] = 7860; cadviewer.ui.run(native=False, host='0.0.0.0', port=7860)"] 
+# Run the application
+CMD ["python", "-c", "import cadviewer; from nicegui import app; app.native.start_args['port'] = 7860; app.native.window_args.pop('base_url', None); cadviewer.ui.run(native=False, host='0.0.0.0', port=7860)"]