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.

.github/workflows/offline.yml

@@ -0,0 +1,20 @@
+name: offline
+on:
+  push:
+    branches: [main]
+  pull_request:
+jobs:
+  test:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v4
+      - uses: actions/setup-node@v4
+        with:
+          node-version: '22'
+      - run: npm --prefix packages/verae-zapier-middleware install
+      - run: npm --prefix packages/zappier install
+      - run: npm --prefix packages/verae-activate install
+      - run: npm run test:offline
+        env:
+          MOCK_VERAE: 'true'
+          NATS_ENABLED: 'false'