shortener：基于 Go 语言的短网址/缩址平台
命令行工具：
# 安装
go install go.dsig.cn/shortener/cmd/shortener@latest
# 查看帮助
shortener help
Short URL management CLI tool
Usage:
shortener [command]
Available Commands:
completion Generate the autocompletion script for the specified shell
create Create a short link
delete Delete a short code
env Print environment variables
get Get a short link
help Help about any command
init Initialize configuration
update Update a short code
version Print version information
Flags:
-h, --help help for shortener
-k, --key string API KEY
-u, --url string API URL
Use "shortener [command] --help" for more information about a command.
后端：https://git.jetsung.com/idev/shortener-server
前端：https://git.jetsung.com/idev/shortener-frontend
