feat(cron): daily sync.source_doc enqueue

node-cron schedules runSync at 03:00 local time; runSync enqueues
sync.source_doc for every source_docs row with sync_source='url'.
Started from server.js's CLI gate alongside the job queue.

Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>

tests/cron/sync_source_docs.test.js

@@ -0,0 +1,51 @@
+import { describe, it, expect, beforeEach, afterEach } from 'vitest';
+import { resetDb } from '../helpers/db.js';
+import { migrateUp } from '../../lib/db/migrate.js';
+import { stopBoss } from '../helpers/boss.js';
+import { pool } from '../../lib/db/pool.js';
+import * as queue from '../../lib/jobs/queue.js';
+import { registerWorkers } from '../../lib/jobs/index.js';
+import { runSync } from '../../lib/cron/sync_source_docs.js';
+import * as jobs from '../../lib/db/repos/jobs.js';
+
+beforeEach(async () => {
+  await resetDb(); await migrateUp();
+  await queue.start(); await registerWorkers();
+});
+afterEach(async () => { await stopBoss(); });
+
+describe('cron/sync_source_docs.runSync', () => {
+  it('enqueues sync.source_doc for each url-synced row', async () => {
+    const sp = (await pool.query(
+      `INSERT INTO spaces(slug, name) VALUES('s','S') RETURNING id`
+    )).rows[0].id;
+    const res = (await pool.query(
+      `INSERT INTO resources(space_id, slug, name, runtime_type) VALUES($1,'r','R','lxc') RETURNING id`,
+      [sp]
+    )).rows[0].id;
+    await pool.query(
+      `INSERT INTO source_docs(resource_id, name, upstream_url, sync_source) VALUES($1,'doc','https://example.com/r','url')`,
+      [res]
+    );
+    const enqueued = await runSync();
+    expect(enqueued).toBe(1);
+    const queued = await jobs.list({ name: 'sync.source_doc' });
+    expect(queued.length).toBe(1);
+  });
+
+  it('skips rows without sync_source=url', async () => {
+    const sp = (await pool.query(
+      `INSERT INTO spaces(slug, name) VALUES('s2','S2') RETURNING id`
+    )).rows[0].id;
+    const res = (await pool.query(
+      `INSERT INTO resources(space_id, slug, name, runtime_type) VALUES($1,'r','R','lxc') RETURNING id`,
+      [sp]
+    )).rows[0].id;
+    await pool.query(
+      `INSERT INTO source_docs(resource_id, name, upstream_url, sync_source) VALUES($1,'doc','https://example.com/r','manual')`,
+      [res]
+    );
+    const enqueued = await runSync();
+    expect(enqueued).toBe(0);
+  });
+});