Create Dockerfile

Dockerfile

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+# 2) Dockerfile (paste as a new file)
+
+```dockerfile
+FROM python:3.10-slim
+
+# Avoid interactive tzdata etc.
+ENV DEBIAN_FRONTEND=noninteractive \
+    PYTHONDONTWRITEBYTECODE=1 \
+    PYTHONUNBUFFERED=1
+
+# System deps (optional but useful for some libs)
+RUN apt-get update && apt-get install -y --no-install-recommends \
+    build-essential curl && \
+    rm -rf /var/lib/apt/lists/*
+
+WORKDIR /code
+
+# Install Python deps first (cached layer)
+COPY requirements.txt .
+RUN pip install --no-cache-dir -r requirements.txt
+
+# Copy app files
+COPY . .
+
+# Expose HF Spaces default port
+EXPOSE 7860
+
+# Start FastAPI with uvicorn
+CMD ["uvicorn", "app:app", "--host", "0.0.0.0", "--port", "7860"]