Register informed-decision-sitting-requester as create-only.

Pin tenant:platform, approval:create only, and the KeyCape env name.
Live secret custody remains railiance-platform attended apply.

Assistant: grok
Assistant-Session: 01a0a23b-3bf0-7341-b4e5-9dc05f72573a

docs/sitting-requester-registration.json

@@ -0,0 +1,19 @@
+{
+  "clientId": "informed-decision-sitting-requester",
+  "displayName": "Informed Decision compact-sitting approval requester",
+  "audience": "approval-engine",
+  "allowedScopes": [
+    "approval:create"
+  ],
+  "grantTypes": [
+    "client_credentials"
+  ],
+  "clientType": "confidential",
+  "secretRef": "env:KEYCAPE_INFORMED_DECISION_SITTING_REQUESTER_CLIENT_SECRET",
+  "serviceSubject": "informed-decision",
+  "tenant": "tenant:platform",
+  "roles": [
+    "informed-decision-sitting-requester"
+  ],
+  "tokenLifetime": "15m"
+}