Add proboctl auth commands

Add login, logout, and status commands for managing
authentication with the Probo API.

Signed-off-by: Bryan Frimin <bryan@getprobo.com>

pkg/cmd/auth/auth.go

@@ -0,0 +1,36 @@
+// Copyright (c) 2026 Probo Inc <hello@getprobo.com>.
+//
+// Permission to use, copy, modify, and/or distribute this software for any
+// purpose with or without fee is hereby granted, provided that the above
+// copyright notice and this permission notice appear in all copies.
+//
+// THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES WITH
+// REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY
+// AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT,
+// INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM
+// LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR
+// OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
+// PERFORMANCE OF THIS SOFTWARE.
+
+package auth
+
+import (
+	"github.com/spf13/cobra"
+	"go.probo.inc/probo/pkg/cmd/auth/login"
+	"go.probo.inc/probo/pkg/cmd/auth/logout"
+	"go.probo.inc/probo/pkg/cmd/auth/status"
+	"go.probo.inc/probo/pkg/cmd/cmdutil"
+)
+
+func NewCmdAuth(f *cmdutil.Factory) *cobra.Command {
+	cmd := &cobra.Command{
+		Use:   "auth <command>",
+		Short: "Authenticate proboctl with Probo",
+	}
+
+	cmd.AddCommand(login.NewCmdLogin(f))
+	cmd.AddCommand(logout.NewCmdLogout(f))
+	cmd.AddCommand(status.NewCmdStatus(f))
+
+	return cmd
+}