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.

docs/sphinx/modules/verae-activate/index.md

@@ -2,7 +2,7 @@
 
 **Package:** `verae-activate`  
 **Source:** `packages/verae-activate/index.js`  
-**Lines:** 25
+**Lines:** 27
 
 ## What this module is
 
@@ -10,7 +10,7 @@ Implementation module in `verae-activate`. The tables below are extracted from t
 
 ## Exports
 
-`version`, `platformVersion`, `authentication`, `creates`, `addNumbers`, `echo`, `sha256Hash`
+`version`, `platformVersion`, `authentication`, `creates`, `addNumbers`, `echo`, `sha256Hash`, `createTimestamp`
 
 ## Types / interfaces / classes
 
@@ -26,6 +26,7 @@ _No top-level functions extracted._
 - `./creates/add_numbers`
 - `./creates/echo`
 - `./creates/sha256`
+- `./creates/timestamp`
 - `./package.json`
 - `zapier-platform-core`