Move Dockerfile to root for Hugging Face detection

Dockerfile

@@ -0,0 +1,35 @@
+FROM python:3.11-slim
+
+# Create user to run the app
+RUN useradd -m -u 1000 user
+USER user
+ENV HOME=/home/user \
+    PATH=/home/user/.local/bin:$PATH
+
+WORKDIR $HOME/app
+
+# Install system dependencies (e.g. for lightgbm/xgboost)
+USER root
+RUN apt-get update && apt-get install -y --no-install-recommends \
+    build-essential \
+    libgomp1 \
+    git \
+    && rm -rf /var/lib/apt/lists/*
+USER user
+
+# Copy the entire project to the container
+COPY --chown=user . $HOME/app/
+
+# Install python dependencies from the root requirements.txt
+RUN pip install --no-cache-dir --upgrade pip
+RUN pip install --no-cache-dir -r requirements.txt
+
+# Install SAP-RPT-1 OSS directly from GitHub (needed for the real model)
+RUN pip install --no-cache-dir git+https://github.com/SAP-samples/sap-rpt-1-oss.git
+
+# Expose port 7860 (Hugging Face Spaces default port)
+EXPOSE 7860
+
+# Run the app using the root app.py entry point
+# This ensures all paths (matrix/, etc.) are correctly added to sys.path
+CMD ["python", "app.py"]