feat: rebuild xiteng.site homelab platform

cat-bodhi/Dockerfile

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+# CAT-BODHI Sprite Segmentation API
+# Node.js + Python + PyTorch in one container
+#
+# Build (CPU, default):
+#   docker build -t cat-bodhi .
+# Build (GPU, requires nvidia-container-toolkit):
+#   docker build --build-arg TORCH_INDEX=https://download.pytorch.org/whl/cu126 -t cat-bodhi .
+
+FROM python:3.11-slim
+
+ARG NODE_MAJOR=22
+ARG TORCH_INDEX=https://download.pytorch.org/whl/cpu
+ARG PIP_MIRROR=https://pypi.tuna.tsinghua.edu.cn/simple
+
+# 中科大 Debian 镜像源
+RUN sed -i 's|http://deb.debian.org/debian|https://mirrors.ustc.edu.cn/debian|g' /etc/apt/sources.list.d/debian.sources \
+    && sed -i 's|http://deb.debian.org/debian-security|https://mirrors.ustc.edu.cn/debian-security|g' /etc/apt/sources.list.d/debian.sources
+
+# 安装 Node.js LTS
+RUN apt-get update && apt-get install -y --no-install-recommends \
+    ca-certificates curl gnupg \
+    && mkdir -p /etc/apt/keyrings \
+    && curl -fsSL https://deb.nodesource.com/gpgkey/nodesource-repo.gpg.key | gpg --dearmor -o /etc/apt/keyrings/nodesource.gpg \
+    && echo "deb [signed-by=/etc/apt/keyrings/nodesource.gpg] https://deb.nodesource.com/node_${NODE_MAJOR}.x nodistro main" > /etc/apt/sources.list.d/nodesource.list \
+    && apt-get update && apt-get install -y --no-install-recommends nodejs \
+    && rm -rf /var/lib/apt/lists/*
+
+# 安装 PyTorch（从官方 index）+ 其他 Python 包（从清华镜像）
+RUN pip install --no-cache-dir \
+    --index-url ${TORCH_INDEX} \
+    --extra-index-url ${PIP_MIRROR} \
+    torch torchvision \
+    opencv-python-headless \
+    numpy \
+    Pillow
+
+WORKDIR /app
+COPY . .
+RUN mkdir -p assets/ai/cats assets/ai/beads
+
+EXPOSE 8080
+ENV PORT=8080
+CMD ["node", "server.mjs"]