Keep-going: tree shares, health flags, CI, compose, timestamp Zapier action

Directory-tree encrypted share mock; /health reports mockVerae/nats;
middleware OpenAPI extended; zappier receipt by jobId; activate Create
Timestamp (local mock or hosted); GitHub Actions test:offline; compose
builds zappier image; seed-demo.mjs.

No Zapier login or live Verae required.

packages/verae-zapier-middleware/test/unit/app.test.js

@@ -30,6 +30,9 @@ describe('createApp', () => {
     const body = await res.json();
     assert.equal(body.status, 'ok');
     assert.equal(body.service, 'verae-zapier-middleware');
+    assert.equal(typeof body.mockVerae, 'boolean');
+    assert.equal(typeof body.natsEnabled, 'boolean');
+    assert.equal(typeof body.natsConnected, 'boolean');
     assert.ok(res.headers.get('x-trace-id'));
   });