Add waiting system application files

- Add main application files (main.py, models.py, schemas.py, etc.)
- Add routers for all features (waiting, attendance, members, etc.)
- Add HTML templates for admin and user interfaces
- Add migration scripts and utility files
- Add Docker configuration
- Add documentation files
- Add .gitignore to exclude database and cache files

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude Sonnet 4.5 <noreply@anthropic.com>

Dockerfile

@@ -0,0 +1,35 @@
+
+# Dockerfile
+FROM python:3.11-slim
+
+WORKDIR /app
+
+# Install system dependencies for build (if needed for some packages)
+RUN apt-get update && apt-get install -y \
+    gcc \
+    libpq-dev \
+    && rm -rf /var/lib/apt/lists/*
+
+# Copy requirements
+COPY requirements.txt .
+
+# Install dependencies + Production extras
+RUN pip install --no-cache-dir -r requirements.txt && \
+    pip install --no-cache-dir psycopg2-binary gunicorn redis
+
+# Copy application code
+COPY . .
+
+# Create entrypoint script
+RUN echo '#!/bin/bash\n\
+# Wait for DB to be ready (simple sleep or use wait-for-it)\n\
+sleep 5\n\
+\n\
+# Run migrations (assuming migrate_db.py or similar exists, or albuvicorn startup handles it)\n\
+# python migrate_db.py\n\
+\n\
+# Start Gunicorn\n\
+exec gunicorn main:app -w 4 -k uvicorn.workers.UvicornWorker -b 0.0.0.0:8000\n\
+' > /app/entrypoint.sh && chmod +x /app/entrypoint.sh
+
+CMD ["/app/entrypoint.sh"]