Create Dockerfile

Dockerfile

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+FROM python:3.10
+
+WORKDIR /app
+COPY requirements.txt .
+RUN pip install -r requirements.txt
+
+COPY . .
+
+# Force unbuffered Python output
+ENV PYTHONUNBUFFERED=1
+
+# Run with explicit python -u flag
+CMD ["python", "-u", "app.py"]