Service identity: shorten the approval:read note (schema maxLength)

edf0cba's note exceeded the declaration schema's note length; the details
stay in that commit message and the hub progress event.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

Assistant: claude-code
Assistant-Model: opus
Assistant-Process: 5502@bnt-lap001
Assistant-Session: 68b3b02f-5d0f-4e71-8421-796f62e50196

tools/service-identity/declarations/keycape.yaml

@@ -66,7 +66,7 @@ identities:
     grants:
       - {mode: USE, scope: keycape, activation: STANDING, environments: [PRODUCTION], note: "client credentials"}
       - {mode: USE, scope: "approval-engine: approval:create", activation: STANDING, environments: [PRODUCTION], note: "key-cape a1ab8ff L122-135"}
-      - {mode: USE, scope: "approval-engine: approval:read", activation: STANDING, environments: [PRODUCTION], note: "key-cape 82b471f; live 2026-11-01 (founder-run keycape-client.py remove-then-add, sso/keycape-config rv 83590099, acceptance hub decision 21a557a9, CCR-2026-0026/0027 amendment); for informed-decision present_existing intake"}
+      - {mode: USE, scope: "approval-engine: approval:read", activation: STANDING, environments: [PRODUCTION], note: "key-cape 82b471f; live 2026-11-01, hub decision 21a557a9"}
     interactive_login: false
     second_factor: not_applicable
     custody: [delivered-secret]