Add libgomp1 for lightgbm runtime dependency

Dockerfile

@@ -17,6 +17,11 @@ FROM python:3.11-slim AS runtime
 
 WORKDIR /app
 
+# Install runtime dependencies for ML libraries
+RUN apt-get update && apt-get install -y --no-install-recommends \
+    libgomp1 \
+    && rm -rf /var/lib/apt/lists/*
+
 # Copy installed packages from builder
 COPY --from=builder /root/.local /root/.local