added sysinfo api

.env

c2/src/backup.rs

c2/src/db.rs

c2/src/main.rs

c2/src/routes.rs

c2/templates/client.html.tera

c2/templates/clients.html.tera

c2/templates/static/bootstrap/css/bootstrap-grid.css

c2/templates/static/bootstrap/css/bootstrap-grid.css.map

c2/templates/static/bootstrap/css/bootstrap-grid.min.css

c2/templates/static/bootstrap/css/bootstrap-grid.min.css.map

c2/templates/static/bootstrap/css/bootstrap-grid.rtl.css

c2/templates/static/bootstrap/css/bootstrap-grid.rtl.css.map

c2/templates/static/bootstrap/css/bootstrap-grid.rtl.min.css

...lates/static/bootstrap/css/bootstrap-grid.rtl.min.css.map

c2/templates/static/bootstrap/css/bootstrap-reboot.css

c2/templates/static/bootstrap/css/bootstrap-reboot.css.map

c2/templates/static/bootstrap/css/bootstrap-reboot.min.css

...mplates/static/bootstrap/css/bootstrap-reboot.min.css.map

c2/templates/static/bootstrap/css/bootstrap-reboot.rtl.css