Update Dockerfile

Dockerfile

@@ -12,7 +12,7 @@ COPY requirements.txt .
 RUN pip install --no-cache-dir -r requirements.txt
 
 # Pre-download Hugging Face model (optional but recommended)
-RUN python -c "from transformers import pipeline; pipeline('summarization', model='facebook/bart-large-cnn')"
+RUN python -c "from transformers import pipeline; pipeline('summarization', model='philschmid/bart-large-cnn-samsum')"
 
 # Copy app code
 COPY ./app ./app