Create Dockerfile

Dockerfile

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+# Use HF Spaces base image (Python 3.10)
+FROM python:3.10-slim
+
+# Avoid prompts & set a home
+ENV DEBIAN_FRONTEND=noninteractive \
+    PYTHONDONTWRITEBYTECODE=1 \
+    PYTHONUNBUFFERED=1 \
+    PIP_NO_CACHE_DIR=1 \
+    PORT=7860
+
+# System deps just in case pandas/openpyxl need them
+RUN apt-get update && apt-get install -y --no-install-recommends \
+    build-essential \
+  && rm -rf /var/lib/apt/lists/*
+
+WORKDIR /app
+
+# Install Python deps
+COPY requirements.txt /app/requirements.txt
+RUN pip install --upgrade pip && pip install -r requirements.txt
+
+# Copy app code
+COPY app.py /app/app.py
+
+# Expose the default Spaces port
+EXPOSE 7860
+
+# Start uvicorn (Spaces will route to $PORT)
+CMD ["uvicorn", "app:app", "--host", "0.0.0.0", "--port", "7860"]