refactored notificatoin / tgsettle responsibility boundaries

api/proto/password_reset.proto

@@ -2,7 +2,11 @@ syntax = "proto3";
 
 option go_package = "github.com/tech/sendico/pkg/generated/gmessaging";
 
+// PasswordResetEvent is published when a user requests a password reset.
 message PasswordResetEvent {
+    // account_ref is the unique reference of the account requesting the reset.
     string account_ref = 1;
+    // reset_token is the one-time token the user must present to set a new
+    // password.
     string reset_token = 2;
-} 
+}