Initial commit: Teen Patti live monitor with analytics

Live dashboard with real-time WebSocket updates, analytics page with
time-filtered stats, ClickHouse storage, and Caddy reverse proxy.

Dockerfile

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+FROM python:3.13-slim
+WORKDIR /app
+COPY requirements.txt .
+RUN pip install --no-cache-dir -r requirements.txt
+COPY app/ ./app/
+COPY static/ ./static/
+CMD ["python", "-m", "app.main"]