Method queue

services/notifications/src/index.ts:170–172

(batch: MessageBatch)

  input: SendPushForConversationInput,
  deps: {
    getRecipientDOStub: (userId: string) => RecipientDOStub;
    /**
     * Read the per-recipient notification preferences. Throw = fail-closed
     * (suppress the recipient). `null` = successful read with no row →
     * default-on for every category.
     */