nip29: update to latest NIP version (change some kinds and remove permissions and moderation stuff).

nip29/utils.go

@@ -0,0 +1,12 @@
+package nip29
+
+import "slices"
+
+func (group Group) GetRoleByName(name string) *Role {
+	idx := slices.IndexFunc(group.Roles, func(role *Role) bool { return role.Name == name })
+	if idx == -1 {
+		return &Role{Name: name}
+	} else {
+		return group.Roles[idx]
+	}
+}