WIP: domain listing with Gandi

Rethinking the interface already.

pkg/dns/gandi/gandi.go

@@ -0,0 +1,15 @@
+package gandi
+
+import (
+	"coopcloud.tech/abra/pkg/dns"
+	"github.com/libdns/gandi"
+)
+
+// New constructs a new DNs provider.
+func New() (gandi.Provider, error) {
+	token, err := dns.NewToken("Gandi", "GANDI_TOKEN")
+	if err != nil {
+		return gandi.Provider{}, err
+	}
+	return gandi.Provider{APIToken: token}, nil
+}