Update Dockerfile

Dockerfile

@@ -21,10 +21,13 @@ COPY requirements.txt .
 RUN pip install --no-cache-dir -r requirements.txt
 
 # Stage 2: Runner
-FROM python:3.12 AS runner
+FROM python:3.12-slim AS runner
 
 WORKDIR /app
 
+# Install runtime dependency: libopenblas.so.0 is provided by libopenblas-base.
+RUN apt-get update && apt-get install -y libopenblas-base && rm -rf /var/lib/apt/lists/*
+
 COPY --from=builder /app/venv venv
 
 COPY app.py .