adding Dockerfile and ignores

.dockerignore

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+# Git
+.git
+.gitignore
+
+# Python
+__pycache__
+*.pyc
+*.pyo
+*.pyd
+.Python
+env
+venv
+.venv
+pip-log.txt
+pip-delete-this-directory.txt
+
+# Virtual environments
+.env
+.venv
+venv/
+ENV/
+
+# IDEs
+.vscode/
+.idea/
+*.swp
+*.swo
+*~
+
+# OS
+.DS_Store
+Thumbs.db
+
+# Logs
+*.log
+
+# Docker
+Dockerfile
+.dockerignore
+
+# Documentation
+README.md
+
+# Service files
+*.service

Dockerfile

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+# Use official Python image
+FROM python:3.11-slim
+
+# Set working directory
+WORKDIR /app
+
+# Install system dependencies if needed (none for this app)
+# RUN apt-get update && apt-get install -y gcc && rm -rf /var/lib/apt/lists/*
+
+# Copy requirements and install Python dependencies
+COPY requirements.txt .
+RUN pip install --no-cache-dir -r requirements.txt
+
+# Copy application code
+COPY . .
+
+# Create a non-root user
+RUN useradd --create-home --shell /bin/bash app
+USER app
+
+# Command to run the application
+CMD ["python", "main.py"]