replace screenshot pipeline and update admin

Dockerfile

@@ -1,14 +1,18 @@
 # 使用国内镜像源加速
-FROM mcr.microsoft.com/playwright/python:v1.40.0-jammy
+FROM python:3.10-slim-bullseye
 
 # 设置工作目录
 WORKDIR /app
 
 # 设置环境变量
 ENV PYTHONUNBUFFERED=1
-ENV PLAYWRIGHT_BROWSERS_PATH=/ms-playwright
 ENV TZ=Asia/Shanghai
 
+# 安装 wkhtmltopdf（包含 wkhtmltoimage）与中文字体
+RUN apt-get update && \
+    apt-get install -y --no-install-recommends wkhtmltopdf fonts-noto-cjk && \
+    rm -rf /var/lib/apt/lists/*
+
 # 配置 pip 使用国内镜像源
 RUN pip config set global.index-url https://mirrors.aliyun.com/pypi/simple/ &&     pip config set install.trusted-host mirrors.aliyun.com
 
@@ -22,10 +26,8 @@ RUN pip install --no-cache-dir -r requirements.txt
 COPY app.py .
 COPY database.py .
 COPY db_pool.py .
-COPY playwright_automation.py .
 COPY api_browser.py .
 COPY browser_pool_worker.py .
-COPY browser_installer.py .
 COPY password_utils.py .
 COPY crypto_utils.py .
 COPY task_checkpoint.py .