Update Dockerfile

Dockerfile

@@ -1,11 +1,18 @@
 FROM python:3.11-slim
 
+# System deps needed by torch / sentence-transformers / faiss
+RUN apt-get update && apt-get install -y --no-install-recommends \
+    libgomp1 libstdc++6 git-lfs \
+ && rm -rf /var/lib/apt/lists/*
+
 WORKDIR /app
 
 COPY requirements.txt .
-RUN pip install -r requirements.txt
+# Avoid cached wheels that may mismatch; ensure CPU wheels
+RUN pip install --no-cache-dir -r requirements.txt
 
 COPY app.py .
 
 ENV PORT=7860
+EXPOSE 7860
 CMD ["uvicorn", "app:app", "--host", "0.0.0.0", "--port", "7860"]