chore(repo): 添加.gitignore，Python版本配置及基础项目结构

- 新增详细.gitignore文件，忽略常见Python缓存、构建等无用文件
- 添加.python-version指定Python版本为3.14
- 添加pyproject.toml，配置项目元信息及依赖包
- 新增uv.lock锁定依赖版本，确保环境一致性
- 新增main.py示例代码，演示Boss类的基本用法：获取职位列表、候选人及简历内容
- 配置国内及私有PyPI源镜像以加速依赖安装

pyproject.toml

@@ -0,0 +1,23 @@
+[project]
+name = "boss-hr-2-0"
+version = "0.1.0"
+description = "Add your description here"
+readme = "README.md"
+requires-python = ">=3.14"
+dependencies = [
+    "ylhp-boss-hr>=1.37"
+]
+
+[tool.setuptools.packages.find]
+where = ["."]
+include = ["boss*"]
+
+[tool.setuptools.package-dir]
+"" = "."
+
+[[tool.uv.index]]
+url = "http://mirrors.aliyun.com/pypi/simple"
+default = true
+
+[[tool.uv.index]]
+url = "https://git.yinlihupo.cn/api/packages/LiQiuYu/pypi/simple"