chore: 尝试初步支持 Docker

Dockerfile

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+FROM node:22-bookworm
+
+WORKDIR /app
+
+ENV DEBIAN_FRONTEND=noninteractive
+ENV PLAYWRIGHT_SKIP_BROWSER_DOWNLOAD=true
+
+# 1. 安装系统依赖
+RUN apt-get update && apt-get install -y \
+    xvfb \
+    x11vnc \
+    libasound2 \
+    libatk-bridge2.0-0 \
+    libgtk-3-0 \
+    libnss3 \
+    libx11-xcb1 \
+    libxss1 \
+    libxtst6 \
+    libgbm1 \
+    libdbus-glib-1-2 \
+    python3 \
+    build-essential \
+    && rm -rf /var/lib/apt/lists/*
+
+# 2. 复制依赖并安装
+COPY package.json pnpm-lock.yaml ./
+RUN npm install -g pnpm && pnpm install --frozen-lockfile
+
+# 3. 复制源码并初始化
+COPY . .
+RUN npm run init
+
+EXPOSE 3000 5900
+
+# 4. 启动脚本
+# 逻辑说明：
+# A. 优先检查 /app/data/config.yaml (用户挂载的数据目录)
+#    - 存在则使用它覆盖 /app/config.yaml
+# B. 不存在 (首次运行)
+#    - 复制 config.example.yaml 为 config.yaml
+#    - 立即备份一份到 /app/data/config.yaml 供用户修改
+CMD ["/bin/sh", "-c", "\
+    if [ -f \"/app/data/config.yaml\" ]; then \
+        cp /app/data/config.yaml /app/config.yaml; \
+    else \
+        echo '>>> First run detected. Generating default config...'; \
+        cp config.example.yaml config.yaml; \
+        echo '>>> Exporting default config to /app/data/config.yaml for you...'; \
+        cp config.yaml /app/data/config.yaml; \
+    fi; \
+    \
+    ARGS='-xvfb -vnc'; \
+    if [ \"$LOGIN_MODE\" = \"true\" ]; then \
+        echo '>>> ENABLED LOGIN MODE'; \
+        ARGS=\"$ARGS -login\"; \
+    fi; \
+    \
+    echo \">>> Starting application with args: $ARGS\"; \
+    npm start -- $ARGS \
+"]

docker-compose.yaml

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+services:
+  lmarena-imagen-automator:
+    build: .
+    container_name: lmarena-imagen-automator
+    restart: unless-stopped
+    ports:
+      - "3000:3000" # API
+      - "5900:5900" # VNC
+    volumes:
+      # 配置文件会自动生成到这里：./data/config.yaml
+      - ./data:/app/data
+    environment:
+      - DISPLAY=:99
+      # true: 登录模式 (用VNC连上去登录)
+      # false: 标准挂机模式
+      - LOGIN_MODE=false
+    shm_size: '2gb'
+    init: true