Update Dockerfile

Dockerfile

@@ -12,7 +12,7 @@ COPY requirements_hf.txt .
 RUN pip install --no-cache-dir -r requirements_hf.txt
 
 # Copy application code
-COPY app_docker.py .
+COPY app_docker_optimized.py .
 COPY backend/ ./backend/
 
 # Create data directories
@@ -22,4 +22,4 @@ RUN mkdir -p data/uploads data/chroma_data
 EXPOSE 7860
 
 # Run application
-CMD ["python", "app_docker.py"]
+CMD ["python", "app_docker_optimized.py"]