Update Dockerfile

Dockerfile

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+# Use the official Python base image
+FROM python:3.11-slim
+
+# Set environment variables
+ENV PYTHONDONTWRITEBYTECODE=1
+ENV PYTHONUNBUFFERED=1
+
+# Set work directory
+WORKDIR /app
+
+# Install dependencies
+COPY requirements.txt .
+RUN pip install --no-cache-dir -r requirements.txt
+
+# Copy project files
+COPY . .
+
+# Expose the port Flask runs on
+EXPOSE 5000
+
+# Run the app
+CMD ["python", "app.py"]