Fix mlpipeline module import in Docker

Dockerfile

@@ -24,9 +24,14 @@ COPY --from=builder /root/.local /root/.local
 COPY src/ ./src/
 COPY app/ ./app/
 COPY config/ ./config/
+COPY setup.py ./
+
+# Install the mlpipeline package
+RUN pip install --no-cache-dir -e .
 
 # Add .local/bin to PATH
 ENV PATH=/root/.local/bin:$PATH
+ENV PYTHONPATH=/app:$PYTHONPATH
 
 # Set environment variables for CI/CD (override with docker-compose or --env-file)
 ENV MLFLOW_TRACKING_URI=""