more cart

proto/cart.proto

@@ -105,6 +105,25 @@ message SetCartType {
   CartType type = 1;
 }
 
+// PushToken is a generic, provider-agnostic push-delivery target. The cart layer
+// only stores what it was given — actual delivery (FCM, APNs, Web Push) is the
+// notifier's job (see pkg/cart/recovery.LoggingNotifier for the v0 contract).
+//
+// Platform is free-form (e.g. "fcm", "apns", "webpush") so callers can record
+// multiple devices per cart without forcing a schema decision here.
+message PushToken {
+  string platform = 1;
+  string token = 2;
+}
+
+// SetRecoveryContact attaches the contact bundle used by the abandoned-cart
+// recovery flow. PUT-style: replaces the entire contact in one event — empty
+// strings or empty token lists are persisted as "no contact".
+message SetRecoveryContact {
+  string email = 1;
+  repeated PushToken push_tokens = 2;
+}
+
 message Mutation {
   oneof type {
     ClearCartRequest clear_cart = 1;
@@ -120,6 +139,7 @@ message Mutation {
     RemoveVoucher remove_voucher = 21;
     UpsertSubscriptionDetails upsert_subscription_details = 22;
     SetCartType set_cart_type = 23;
+    SetRecoveryContact set_recovery_contact = 24;
   }
 }