Milestone 3: NATS wait (gate 9), hash lookup, zappier timestamp, NS1 tunnel

Wait-via-NATS returns completed or pending+jobId (GATE 9). Mock SHA256
idempotent register + GET /hashes/{sha256}. Zappier commercial edge has
POST /v1/timestamp and hash-lookup. GATE 12 smoke (signup + wait) passes.

NS1 NATS is 127.0.0.1:4222 on 70.88.205.138; SSH tunnel :14222. Local
nats-server -js used for isolated tests. Activate app adds Echo Text.

Learned: JetStream on NS1 is loopback-only; do not bind 4222 public.

packages/verae-activate/index.js

@@ -9,6 +9,7 @@
 
 const authentication = require('./authentication');
 const addNumbers = require('./creates/add_numbers');
+const echo = require('./creates/echo');
 
 module.exports = {
   version: require('./package.json').version,
@@ -16,5 +17,6 @@ module.exports = {
   authentication,
   creates: {
     [addNumbers.key]: addNumbers,
+    [echo.key]: echo,
   },
 };