add basic github

crates/github/src/auth.rs

@@ -0,0 +1,13 @@
+pub struct Auth;
+
+impl util::Cmd for Auth {
+    fn cmd() -> eyre::Result<clap::Command> {
+        Ok(clap::Command::new("auth"))
+    }
+
+    fn exec(_: &clap::ArgMatches) -> eyre::Result<()> {
+        util::shell::run(&["gh", "auth", "login"])?;
+
+        Ok(())
+    }
+}