feat: 支持 Python venv 隔离环境，适配 Node.js 原生部署#3009
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## 背景 原方案使用系统 Python + pip --prefix 安装依赖到 data/dep_cache/python3， 系统 Python 环境被污染，且无法隔离不同项目的依赖。 ## 改动内容 ### 核心：Python venv 支持 - shell/start.sh: 使用 python3 -m venv 创建虚拟环境，替代 --prefix 模式 - 从 .env 文件读取 PYTHON_VENV_DIR 配置 - 首次启动自动创建 .venv，已存在则跳过 - 仅将 .venv/bin 加入 PATH 优先级，不设置 PYTHONHOME/PYTHONPATH（避免破坏 venv 机制） - .env 不再强制覆盖，仅首次从 .env.example 复制 - 启动时自动修复 task/ql 软链接指向当前部署目录 ### 后端适配 - back/config/const.ts: 新增 PYTHON_VENV_DIR 常量 - back/config/util.ts: venv 模式下跳过 pip --prefix，直接使用 venv 的 pip3 ### 开发模式支持 - shell/dev-env.sh: pnpm start 时自动 source，将 .venv/bin 加入 PATH - package.json: start:back 加入 source dev-env.sh ### 新增文件 - shell/start-simplify.sh: 精简版启动脚本（跳过系统依赖安装，适用于已预装环境的服务器） - README-NODE.md: Node.js 原生部署完整文档 ### 配置 - .env.example: 新增 PYTHON_VENV_DIR=./.venv 配置项（默认注释状态） ## 兼容性 - Docker 模式不受影响（使用独立的 docker-entrypoint.sh，走原有 --prefix 逻辑） - 未配置 PYTHON_VENV_DIR 时默认使用系统 Python（向后兼容）
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nodejs 原生部署用 npm i @whyour/qinglong 是不是可以 |
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可以的，主要问题是qinglong nom安装默认是使用的系统的python环境，可能会污染环境和存在包冲突 |
Owner
那我理解可以改下，
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背景
原方案使用系统 Python + pip --prefix 安装依赖到 data/dep_cache/python3， 系统 Python 环境被污染，且无法隔离不同项目的依赖。
改动内容
核心：Python venv 支持
后端适配
开发模式支持
新增文件
配置
兼容性
PR Type
What kind of change does this PR introduce?
What is the current behavior?
Issue Number: N/A
What is the new behavior?
Does this PR introduce a breaking change?
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