added Dockerfile

Dockerfile

@@ -0,0 +1,32 @@
+# Use official Python runtime optimized for ML
+FROM python:3.11-slim
+
+# Set up user (required for HF Spaces security)
+RUN useradd -m -u 1000 user
+USER user
+
+# Set environment variables
+ENV PATH="/home/user/.local/bin:$PATH"
+ENV PYTHONPATH="/app:$PYTHONPATH"
+
+# Set working directory
+WORKDIR /app
+
+# Copy requirements first for better caching
+COPY --chown=user ./requirements.txt requirements.txt
+
+# Install Python dependencies
+RUN pip install --no-cache-dir --upgrade -r requirements.txt
+
+# Copy application code and model
+COPY --chown=user . /app
+
+# Expose the port that HF Spaces expects
+EXPOSE 7860
+
+# Health check
+HEALTHCHECK --interval=30s --timeout=30s --start-period=5s --retries=3 \
+    CMD curl -f http://localhost:7860/health || exit 1
+
+# Command to run the application
+CMD ["uvicorn", "app:app", "--host", "0.0.0.0", "--port", "7860"]