Create dockerfile

dockerfile

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+FROM python:3.9-slim
+
+WORKDIR /app
+
+# Install dependencies
+COPY requirements.txt .
+RUN pip install --no-cache-dir -r requirements.txt
+
+# Copy app
+COPY app.py .
+COPY data/gpt2_ready_filtered.jsonl ./data/
+
+# Expose for Spaces
+EXPOSE 7860
+
+# Run with Uvicorn
+CMD ["uvicorn", "app:app", "--host", "0.0.0.0", "--port", "7860"]