fix: use work items as dashboard outbound SSOT

src/db-work-items.test.ts

@@ -0,0 +1,51 @@
+import { beforeEach, describe, expect, it } from 'vitest';
+
+import {
+  _initTestDatabase,
+  createProducedWorkItem,
+  getOpenWorkItem,
+  getRecentDeliveredWorkItemsForChat,
+  markWorkItemDelivered,
+} from './db.js';
+
+beforeEach(() => {
+  _initTestDatabase();
+});
+
+describe('work item canonical output queue', () => {
+  it('supersedes stale open work items before creating a newer canonical output', () => {
+    const stale = createProducedWorkItem({
+      group_folder: 'discord_test',
+      chat_jid: 'dc:supersede',
+      agent_type: 'codex',
+      service_id: 'codex-main',
+      delivery_role: 'owner',
+      start_seq: 1,
+      end_seq: 2,
+      result_payload: 'stale owner output',
+    });
+    const fresh = createProducedWorkItem({
+      group_folder: 'discord_test',
+      chat_jid: 'dc:supersede',
+      agent_type: 'codex',
+      service_id: 'codex-main',
+      delivery_role: 'owner',
+      start_seq: 3,
+      end_seq: 4,
+      result_payload: 'fresh owner output',
+    });
+
+    expect(fresh.id).not.toBe(stale.id);
+    expect(getOpenWorkItem('dc:supersede', 'codex', 'codex-main')?.id).toBe(
+      fresh.id,
+    );
+
+    markWorkItemDelivered(fresh.id, 'discord-message-id');
+    expect(getRecentDeliveredWorkItemsForChat('dc:supersede', 10)).toEqual([
+      expect.objectContaining({
+        id: fresh.id,
+        result_payload: 'fresh owner output',
+      }),
+    ]);
+  });
+});