Initial WireGuard admin panel: FastAPI UI, peer key management, live monitoring, Docker deploy

Co-authored-by: factory-droid[bot] <138933559+factory-droid[bot]@users.noreply.github.com>

Dockerfile

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+FROM python:3.13-slim
+
+RUN apt-get update \
+    && apt-get install -y --no-install-recommends wireguard-tools iptables iproute2 \
+    && rm -rf /var/lib/apt/lists/*
+
+WORKDIR /opt/wireguard-admin
+
+COPY requirements.txt .
+RUN pip install --no-cache-dir -r requirements.txt
+
+COPY app ./app
+COPY entrypoint.sh .
+RUN chmod +x entrypoint.sh
+
+EXPOSE 8000/tcp 51820/udp
+
+ENTRYPOINT ["./entrypoint.sh"]